1
00:00:00,000 --> 00:00:11,470

2
00:00:11,470 --> 00:00:12,764
>> SPIKA 1: zote, haki kuwakaribisha nyuma.

3
00:00:12,764 --> 00:00:14,140
Hii ni CS50.

4
00:00:14,140 --> 00:00:16,800
Na hii ni mwanzo wa wiki tisa.

5
00:00:16,800 --> 00:00:19,960
Na hii ni mwanzo wa mapumziko ya
muda wako katika CS50, ambayo sisi

6
00:00:19,960 --> 00:00:23,170
mpito sasa, hatimaye, kwa mtandao
nyanja ya shaka, ambapo utasikia

7
00:00:23,170 --> 00:00:26,200
kupata kwamba mengi ya misingi kwamba
tumekuwa nje kwa wiki

8
00:00:26,200 --> 00:00:29,270
bado kuja nyuma ya kutembelea,
au haunt, nasi.

9
00:00:29,270 --> 00:00:33,440
Lakini sasa, utapata kwamba ni
utaratibu wa ukubwa rahisi

10
00:00:33,440 --> 00:00:36,540
kukamilisha kazi fulani na
kutatua matatizo fulani -

11
00:00:36,540 --> 00:00:41,050
hivyo hivyo kiasi kwamba hata kama wewe mawazo
fulani tatizo seti walikuwa na furaha katika zao

12
00:00:41,050 --> 00:00:44,200
njia mwenyewe, nadhani kwamba utapata
kwamba p kuweka 7, ukr kuweka 8, na kisha,

13
00:00:44,200 --> 00:00:47,990
hatimaye, mradi wa mwisho watakuwa
kuufurahisha wote zaidi kwa sababu itabidi

14
00:00:47,990 --> 00:00:51,830
kupata kwamba tunaanza kuchukua kwa nafasi
sasa mambo kama kumbukumbu, usimamizi na

15
00:00:51,830 --> 00:00:54,190
kuyatumia, na nini kinaendelea
juu ya chini ya Hood.

16
00:00:54,190 --> 00:00:57,310
Na tena, mada, wote katika
muhula imekuwa hii layering

17
00:00:57,310 --> 00:00:58,030
na layering.

18
00:00:58,030 --> 00:01:00,530
Na sasa sisi ni aina ya juu
hapa, wamesimama juu ya

19
00:01:00,530 --> 00:01:01,930
mabega ya wiki iliyopita.

20
00:01:01,930 --> 00:01:05,360
>> Sasa, kukumbuka mara ya mwisho kwamba sisi
aliyesema kuhusu jinsi ya internet kazi.

21
00:01:05,360 --> 00:01:08,120
Na hii ilikuwa labda
kurahisisha, lakini kumbuka kwamba

22
00:01:08,120 --> 00:01:12,960
kila kompyuta katika dunia ina IP
kushughulikia, ingawa hiyo ni kidogo ya

23
00:01:12,960 --> 00:01:14,570
kurahisisha bado.

24
00:01:14,570 --> 00:01:18,180
Na anuani hizo ni kutumika kwa kipekee
kubaini mashine ili

25
00:01:18,180 --> 00:01:22,010
wakati kutuma habari, au pakiti,
hivyo kusema, wanaweza kuwa na asili ya

26
00:01:22,010 --> 00:01:24,000
anwani na anwani ya marudio.

27
00:01:24,000 --> 00:01:27,830
Na wale anwani ya IP huo unaweza kutumika
wote kwa ajili ya mema na pia kwa ajili ya uovu,

28
00:01:27,830 --> 00:01:29,270
kufuatilia yenu, kwa mfano.

29
00:01:29,270 --> 00:01:32,200
Kwa kweli, kila mmoja wenu kwa mbali
kufungua sasa, au simu yako katika

30
00:01:32,200 --> 00:01:35,070
mfukoni, anwani ya IP
kwenye mtandao wa Harvard.

31
00:01:35,070 --> 00:01:39,120
Na si wote kwamba vigumu
correlate kwamba kwa nani na wapi

32
00:01:39,120 --> 00:01:40,180
ni siku hizi.

33
00:01:40,180 --> 00:01:42,090
Lakini zaidi juu ya kwamba labda
katika siku zijazo.

34
00:01:42,090 --> 00:01:46,510
>> Sasa nilifikiri ningependa kuleta nyuma baadhi ya
kumbukumbu ya [? kuimarisha]? na kukupa

35
00:01:46,510 --> 00:01:49,360
mwingine cha picha ya video kutoka show wewe
ili kupata ukoo.

36
00:01:49,360 --> 00:01:52,710
Kama tunaweza dim taa
kwa sekunde chache tu.

37
00:01:52,710 --> 00:01:53,960
Numb3rs show.

38
00:01:53,960 --> 00:01:57,510

39
00:01:57,510 --> 00:02:00,540
>> SPIKA 2: Ni ya 32-bit IPP4 anwani.

40
00:02:00,540 --> 00:02:01,610
>> SPIKA 3: IPP, kama katika mtandao?

41
00:02:01,610 --> 00:02:02,968
>> SPIKA 2: Binafsi mtandao.

42
00:02:02,968 --> 00:02:04,960
Na mtandao Amita ya binafsi.

43
00:02:04,960 --> 00:02:16,930

44
00:02:16,930 --> 00:02:19,602
Yeye ni ajabu.

45
00:02:19,602 --> 00:02:21,030
>> SPIKA 3: Haya, Charlie.

46
00:02:21,030 --> 00:02:21,490
>> SPIKA 2: Ni.

47
00:02:21,490 --> 00:02:22,470
IP kioo anwani.

48
00:02:22,470 --> 00:02:27,680
Yeye kuruhusu sisi kuangalia nini
yeye anafanya katika muda halisi.

49
00:02:27,680 --> 00:02:30,930
>> SPIKA 1: OK, hivyo wachache na mambo
kibaya na picha hii.

50
00:02:30,930 --> 00:02:32,920
Hivyo moja, na hii ni moja ya kukubalika,
hii ni kweli

51
00:02:32,920 --> 00:02:34,400
si halali ya IP.

52
00:02:34,400 --> 00:02:38,190
halali ya IP ina kuwa idadi
w.x.y.z ya fomu, ambapo kila moja ya

53
00:02:38,190 --> 00:02:40,000
wale barua ni 0-255.

54
00:02:40,000 --> 00:02:42,330
Lakini hiyo ni nzuri kwa sababu tu kama
sinema ambapo wao bandia namba za simu,

55
00:02:42,330 --> 00:02:43,520
wao bandia anwani ya IP.

56
00:02:43,520 --> 00:02:45,230
Wewe si kweli hit seva halisi.

57
00:02:45,230 --> 00:02:46,760
>> Lakini kumbuka, hii ni browser.

58
00:02:46,760 --> 00:02:50,760
Na browsers si kuanza outputting
kompyuta kanuni kama hii.

59
00:02:50,760 --> 00:02:54,230
Na kama sisi kuangalia undani kidogo, taarifa
kwamba lugha ya kwamba wao ni kuona

60
00:02:54,230 --> 00:02:57,040
juu ya screen ni lugha inayoitwa
Lengo C, ambayo ni lugha katika

61
00:02:57,040 --> 00:02:59,520
ambayo programu iPhone yameandikwa,
hasa yale yanayohusiana na

62
00:02:59,520 --> 00:03:03,540
crayons, kama unaweza kuona kutoka
kanuni chanzo hapa.

63
00:03:03,540 --> 00:03:06,600

64
00:03:06,600 --> 00:03:07,560
>> OK, Nilidhani hii ilikuwa funny.

65
00:03:07,560 --> 00:03:12,240
Hivyo huu wa snipu ina kabisa
kitu cha kufanya na chochote hii

66
00:03:12,240 --> 00:03:13,940
sehemu fulani ilikuwa juu.

67
00:03:13,940 --> 00:03:17,590
Hivyo utani ni aina ya juu ya folks
kuchukua kwa ajili ya hii nafasi.

68
00:03:17,590 --> 00:03:20,220
Lakini hii si ngumu kwamba wote kupata
haya maelezo ya kiufundi ya haki.

69
00:03:20,220 --> 00:03:21,980
Na napenda moyo.

70
00:03:21,980 --> 00:03:25,530
Na kweli, 50 ili vizuri sana nyara
mengi ya maonyesho ya TV na sinema au wewe

71
00:03:25,530 --> 00:03:27,320
kwa sababu utapata kwamba ni tu
haiwezekani nini re

72
00:03:27,320 --> 00:03:28,630
kufanya kwenye screen.

73
00:03:28,630 --> 00:03:31,750
Lakini kwa kweli, hii ni kanuni ya kuwa wewe
wanaweza kuona katika maombi iPhone

74
00:03:31,750 --> 00:03:33,640
au Mac OS maombi.

75
00:03:33,640 --> 00:03:35,685
Ni kitu wakati wote
kufanya na usalama.

76
00:03:35,685 --> 00:03:38,610
Hivyo kushika jicho nje kwa zaidi
vile furaha mambo kama hayo.

77
00:03:38,610 --> 00:03:42,720
>> Lakini leo tunaanza kwa kupiga mbizi katika kweli
undani wa mbalimbali mzima wa lugha.

78
00:03:42,720 --> 00:03:45,410
kweli, mmoja wa kuu
takeaways ya sehemu hii ya

79
00:03:45,410 --> 00:03:51,815
Bila shaka si kujifunza jinsi ya mpango
katika PHP, si kujifunza SQL per se, si

80
00:03:51,815 --> 00:03:58,100
kujifunza JavaScript per se, lakini badala
kufundisha mwenyewe jinsi ya kufundisha

81
00:03:58,100 --> 00:04:02,030
mwenyewe mpya lugha kwa sababu, kwa hakika,
sisi kuanza kuchukua sasa

82
00:04:02,030 --> 00:04:06,020
mafunzo ya magurudumu ya mbali ili baada ya
kozi ya mwisho, wewe wala kutarajia 20

83
00:04:06,020 --> 00:04:08,890
ukurasa vipimo kukuambia jinsi
kutekeleza baadhi ya mpango.

84
00:04:08,890 --> 00:04:12,970
Una kutosha viungo katika yako
akili, na zana za kutosha katika chombo yako

85
00:04:12,970 --> 00:04:15,750
kit, na ambayo kwa kuanza kujenga
ufumbuzi wa matatizo ya maslahi ya

86
00:04:15,750 --> 00:04:19,130
wewe kwa ajili ya baadhi ya kundi ya wanafunzi, kwa baadhi ya
mradi wa utafiti, au kweli kitu

87
00:04:19,130 --> 00:04:20,140
wa maslahi na wewe.

88
00:04:20,140 --> 00:04:24,150
>> Hivyo kuelekea mwisho kwamba, kukumbuka kwamba hii ilikuwa
picha sisi akauchomoa wakati wa mwisho.

89
00:04:24,150 --> 00:04:27,620
Na hii ni mbili kompyuta, mteja na
watawatenga, kuzungumza na mtu mwingine.

90
00:04:27,620 --> 00:04:31,130
Na itifaki, lugha, hivyo
kusema, kwamba hizi kompyuta mbili kutokea

91
00:04:31,130 --> 00:04:33,220
kwa kusema kuwa inaitwa HTTP.

92
00:04:33,220 --> 00:04:37,730
Na kwamba tu itifaki kutumiwa na
kompyuta kuhamisha taarifa juu ya

93
00:04:37,730 --> 00:04:38,710
duniani kote mtandao.

94
00:04:38,710 --> 00:04:41,770
mtandao, bila shaka, ni moja tu ya huduma
kwamba anaendesha juu ya

95
00:04:41,770 --> 00:04:43,000
kinachojulikana internet.

96
00:04:43,000 --> 00:04:48,660
Nini huduma nyingine zinazopatikana
juu ya internet siku hizi?

97
00:04:48,660 --> 00:04:51,600
Baadhi ya itifaki nyingine au - nini hiyo?

98
00:04:51,600 --> 00:04:52,300
>> Watazamaji: FTP.

99
00:04:52,300 --> 00:04:52,790
>> SPIKA 1: FTP.

100
00:04:52,790 --> 00:04:54,630
Hivyo Picha Transfer Itifaki ni mwingine.

101
00:04:54,630 --> 00:04:56,050
Zaidi ya wewe pengine si kutumika.

102
00:04:56,050 --> 00:04:58,830
Lakini wengi pengine kutumika
mambo kama Gchat, au papo

103
00:04:58,830 --> 00:05:00,970
ujumbe kwa ujumla zaidi,
hakika email.

104
00:05:00,970 --> 00:05:04,470
Na wale, pia, ni huduma ambayo kukimbia kwenye
juu ya internet kwa sababu, katika

105
00:05:04,470 --> 00:05:08,180
mwisho wa siku, internet yenyewe
kweli tu kupata data kutoka uhakika na

106
00:05:08,180 --> 00:05:12,480
hatua B. Na anatumia simu ya
chembe yenyewe, mmoja wao au mbili

107
00:05:12,480 --> 00:05:17,340
wao wengi kwa ujumla aitwaye TCP / IP,
ambayo ni kusema kwamba moja ya kompyuta katika

108
00:05:17,340 --> 00:05:19,960
biashara kwa kweli anaweza kufanya
mambo mbalimbali, barua pepe,

109
00:05:19,960 --> 00:05:20,980
na mtandao, na kadhalika.

110
00:05:20,980 --> 00:05:22,220
Google haina mengi ya hii.

111
00:05:22,220 --> 00:05:26,310
Hivyo jinsi ni wale huduma ya kipekee
kutambuliwa, gani sisi kusema, kwenye kompyuta

112
00:05:26,310 --> 00:05:29,080
kwamba ili kweli kuwa kufanya
nyingi mambo?

113
00:05:29,080 --> 00:05:29,860
>> idadi ya bandari.

114
00:05:29,860 --> 00:05:34,180
Na haya ni baadhi tu ya holela ya binadamu
makongamano kama 80 ni mtandao, 443 ni

115
00:05:34,180 --> 00:05:36,580
mtandao encrypted, 25 ni email.

116
00:05:36,580 --> 00:05:38,230
Na kuna mashada ya wengine.

117
00:05:38,230 --> 00:05:41,860
Na idadi ya wale ni tu ni pamoja na katika
wale pakiti za habari, wale

118
00:05:41,860 --> 00:05:46,230
virtual bahasha, kwamba kweli
zilizomo ombi au majibu.

119
00:05:46,230 --> 00:05:51,300
>> Hivyo wakati wewe kupata nyuma majibu kutoka
mtandao, kwa kawaida, si kuona yoyote

120
00:05:51,300 --> 00:05:54,780
idadi wowote katika suala la
hali ya kanuni ya majibu.

121
00:05:54,780 --> 00:05:56,770
Wewe si kweli kuona
ndani ya utendaji kazi wa

122
00:05:56,770 --> 00:05:58,090
pakiti kwamba kuja nyuma.

123
00:05:58,090 --> 00:05:59,860
Lakini 200 haina hakika maana sawa.

124
00:05:59,860 --> 00:06:01,530
Na kwamba maana yote ni sawa.

125
00:06:01,530 --> 00:06:02,870
Unaweza kuwa na kuonekana rundo la hayo.

126
00:06:02,870 --> 00:06:05,710
Ambayo pengine ni ya kawaida
ve kuonekana kwenye mtandao?

127
00:06:05,710 --> 00:06:05,980
>> 404.

128
00:06:05,980 --> 00:06:07,330
Ni njia tu faili halikupatikana.

129
00:06:07,330 --> 00:06:08,270
Ina maana mtu Star up.

130
00:06:08,270 --> 00:06:11,450
Alivyofanya na mistyping URL, au mtu
mwingine alifanya kwa kutoa

131
00:06:11,450 --> 00:06:15,100
batili URL, au wao ilifutwa
faili na URL bado ni

132
00:06:15,100 --> 00:06:16,130
kutumiwa na watu.

133
00:06:16,130 --> 00:06:19,670
Hivyo idadi yoyote ya sababu inaweza kueleza
nini faili si kupatikana.

134
00:06:19,670 --> 00:06:22,990
Na utaona, katika wiki ijayo,
hizi nyingine kosa codes, na utasikia

135
00:06:22,990 --> 00:06:24,195
kuchukua faida ya baadhi yao.

136
00:06:24,195 --> 00:06:25,760
mbaya zaidi ni 500.

137
00:06:25,760 --> 00:06:29,820
Kama wewe kupata kosa 500 katika kanuni wewe wameweza
imeandikwa, kufikiri ya kwamba kama aina ya

138
00:06:29,820 --> 00:06:33,290
Analog ya makosa seg katika
ulimwengu wa programu ya mtandao.

139
00:06:33,290 --> 00:06:34,560
Siyo kabisa kama mbaya.

140
00:06:34,560 --> 00:06:36,660
Lakini ni tu ina maana kwamba, mahali fulani,
wewe Star up.

141
00:06:36,660 --> 00:06:38,260
Ili kuangalia mbele kwa wale.

142
00:06:38,260 --> 00:06:39,910
>> Lakini hebu angalia kama tunaweza
kuona haya katika mazingira.

143
00:06:39,910 --> 00:06:43,460
Hebu kwenda browser hapa
na kufanya yafuatayo.

144
00:06:43,460 --> 00:06:45,710
Hivyo hii ni Chrome, ambayo hutokea kwa
kuwa imewekwa katika appliance.

145
00:06:45,710 --> 00:06:49,410
Lakini wengi kila browser siku hizi ina
baadhi ya utendaji sawa.

146
00:06:49,410 --> 00:06:52,610
Mimi nina kwenda hadi orodha Chrome,
na kwenda Tools, na mimi nina kwenda

147
00:06:52,610 --> 00:06:53,990
Developer na vifaa.

148
00:06:53,990 --> 00:06:57,040
Na utaona kwamba hii jopo kidogo
kuufungua katika chini ya dirisha.

149
00:06:57,040 --> 00:07:00,190
Njia ya mkato ya mwingine, kwa kuwa waaminifu, kwamba mimi
matumizi ya kawaida mwenyewe ni Haki bonyeza

150
00:07:00,190 --> 00:07:04,370
au Document bonyeza mahali popote kwenye mtandao
ukurasa na tu kwenda Kukagua Element.

151
00:07:04,370 --> 00:07:07,440
Na kwamba si tu kufungua
hii kwa ajili yenu.

152
00:07:07,440 --> 00:07:10,230
Itakuwa wazi pia, hasa,
Sehemu ya vipengele

153
00:07:10,230 --> 00:07:11,430
mkono wa kushoto upande.

154
00:07:11,430 --> 00:07:12,460
>> Hivyo sisi ni bila shaka kuona Google.

155
00:07:12,460 --> 00:07:13,930
Wao iliyopita alama zao leo.

156
00:07:13,930 --> 00:07:20,200
Lakini juu ya kama mimi kitabu chini hapa juu, taarifa
kuwa chini ya vipengele, unaweza kuona

157
00:07:20,200 --> 00:07:23,460
kile kinachoitwa HTML, HyperText Markup
Lugha, na hii ni lugha ya

158
00:07:23,460 --> 00:07:26,000
kwamba hii na mtandao kurasa zote,
kweli, yaliyoandikwa ndani

159
00:07:26,000 --> 00:07:28,950
Lakini ni kweli formatted kwa ajili ya
sisi hivyo zaidi readably

160
00:07:28,950 --> 00:07:29,970
kuliko kawaida ni.

161
00:07:29,970 --> 00:07:34,810
Kwa kweli, kama mimi zoom nje, na mimi badala
Haki tu bonyeza au kudhibiti Bonyeza

162
00:07:34,810 --> 00:07:39,630
bonyeza ukurasa, na kisha kwenda View
Ukurasa Chanzo, hii ni halisi nini

163
00:07:39,630 --> 00:07:42,150
Google teremshiwa browser yangu.

164
00:07:42,150 --> 00:07:46,480
>> Hivyo baadhi ya mtu au watu aliandika
Google.com kutumia kanuni hii chanzo.

165
00:07:46,480 --> 00:07:47,790
Wengi wa hii si HTML.

166
00:07:47,790 --> 00:07:49,340
Ni kweli lugha inayoitwa
JavaScript, ambayo

167
00:07:49,340 --> 00:07:50,880
tutaweza kuja juu ya Jumatano.

168
00:07:50,880 --> 00:07:55,580
Lakini nini Chrome, na nini kila browser
unaweza kufanya kwa ajili yetu, ni aina ya kuona

169
00:07:55,580 --> 00:07:59,610
nyuma ya distractions ya
mambo syntax, na reinsert nyeupe nafasi

170
00:07:59,610 --> 00:08:02,940
kwa ajili yetu, na hata kuonyesha syntax,
au colorize mambo kwa ajili yetu.

171
00:08:02,940 --> 00:08:06,470
Hivyo utapata kwamba hawa wanaoitwa
developer zana kujengwa katika browsers

172
00:08:06,470 --> 00:08:10,830
kufanya maisha yako hivyo, hivyo rahisi zaidi
kwa sababu unaweza kuchunguza, kupitia orodha hii

173
00:08:10,830 --> 00:08:13,940
interface, hasa yale ya msingi
chanzo code ni kwa

174
00:08:13,940 --> 00:08:15,750
ukurasa wowote kwenye mtandao.

175
00:08:15,750 --> 00:08:19,070
Na kwa kweli, hii ni moja ya
njia bora ya kujifunza namna ya kufanya

176
00:08:19,070 --> 00:08:22,860
kitu kipya, angalau kama ukurasa
si hivyo tata kama overwhelm, ni

177
00:08:22,860 --> 00:08:26,700
kuanza poking kote ni HTML, kuangalia
saa kinachojulikana yake CSS, ambayo tutaweza kuja

178
00:08:26,700 --> 00:08:30,310
kwa kidogo kama vile, ili kupata
kuelewa jinsi ya programu kwamba

179
00:08:30,310 --> 00:08:33,480
kutekelezwa baadhi hasa
hulka ya ukurasa.

180
00:08:33,480 --> 00:08:36,530
>> Lakini zaidi ya kitaalam ya kuvutia haki
sasa ni kwenda kuwa hii.

181
00:08:36,530 --> 00:08:39,429
Kama mimi kwenda tab Network,
hebu sasa wazi hii.

182
00:08:39,429 --> 00:08:43,429
Mimi nina kwenda bonyeza kidogo
kuvuka alama hapa, na kisha

183
00:08:43,429 --> 00:08:45,630
kwenda kwenye tovuti nyingine.

184
00:08:45,630 --> 00:08:48,430
Na Mimi tu kwenda aina
katika Facebook.com.

185
00:08:48,430 --> 00:08:51,940
Hakuna HTTP, hakuna HTTPS, hakuna WWW.

186
00:08:51,940 --> 00:08:53,850
Hebu kweli kuona nini kinatokea hapa.

187
00:08:53,850 --> 00:08:55,030
>> Kuingia.

188
00:08:55,030 --> 00:08:58,480
Sasa taarifa rundo zima ya mambo tu
alionekana katika jopo hili chini, katika

189
00:08:58,480 --> 00:09:00,285
Mbali na ukurasa wa mtandao
kuonekana katika juu.

190
00:09:00,285 --> 00:09:04,890
Mimi nina kwenda na kitabu nyuma hadi katika
Mtandao tab hapa, na mimi nina kwenda

191
00:09:04,890 --> 00:09:06,080
bonyeza safu ya kwanza.

192
00:09:06,080 --> 00:09:10,580
Kile chombo hiki ni kwenda kutufunulia
ni kila moja ya maombi HTTP

193
00:09:10,580 --> 00:09:13,550
kwamba kwa haraka tu akaenda nyuma na
nje kati ya browser yangu

194
00:09:13,550 --> 00:09:14,930
na Facebook server.

195
00:09:14,930 --> 00:09:17,830
Na hivyo kila mmoja wa safu wale
inawakilisha moja vile ombi au

196
00:09:17,830 --> 00:09:20,970
majibu, moja au zaidi ya
wale bahasha virtual.

197
00:09:20,970 --> 00:09:24,080
Au zaidi kawaida, ni kama mtu
kama mtu, mteja katika

198
00:09:24,080 --> 00:09:26,710
mgahawa, kuomba kitu
tena, na tena, na tena.

199
00:09:26,710 --> 00:09:29,400
Na waiter anaendelea kuleta
nyuma moja kwa wakati.

200
00:09:29,400 --> 00:09:33,850
>> Basi sasa, kama mimi kuvuta hii, taarifa
na hii itakuwa ya aina ya kitu

201
00:09:33,850 --> 00:09:36,600
kwamba wewe ni kuwakaribisha kwa moyo na
kucheza na juu yako mwenyewe, kwa sababu sisi

202
00:09:36,600 --> 00:09:38,150
si kwenda njia ya kila kitu
katika kina kubwa.

203
00:09:38,150 --> 00:09:40,070
Lakini taarifa kuna
chache ndogo tabo hapa -

204
00:09:40,070 --> 00:09:43,700
Headers, Preview, Response,
Biskuti, na majira.

205
00:09:43,700 --> 00:09:48,280
Mimi tu kwenda kuangalia headers
kwa sasa kwa sababu hizi ni kidogo

206
00:09:48,280 --> 00:09:53,600
viungo ndani ya bahasha kwamba
kusaidia data kupata na kutoka maeneo.

207
00:09:53,600 --> 00:09:57,590
>> Hivyo kwanza, basi mimi bonyeza hii, View
Chanzo karibu na Ombi headers.

208
00:09:57,590 --> 00:10:01,910
Kuna ombi kwamba yangu browser,
Chrome, katika kesi hii, alimtuma ndani ya

209
00:10:01,910 --> 00:10:02,910
kwamba bahasha virtual.

210
00:10:02,910 --> 00:10:04,800
Itabidi kukumbuka wiki iliyopita mimi
manually typed wakati

211
00:10:04,800 --> 00:10:06,380
kujifanya kuwa browser.

212
00:10:06,380 --> 00:10:09,980
Basi ni aliwakumbusha server kwamba ni
kuangalia kwa jeshi aliwaita

213
00:10:09,980 --> 00:10:10,835
Facebook.com.

214
00:10:10,835 --> 00:10:13,630
Na kisha kuna kidogo zaidi arcane
habari kwamba tutaweza kukitikisa

215
00:10:13,630 --> 00:10:14,830
mikono yetu kwa sasa.

216
00:10:14,830 --> 00:10:18,640
>> Lakini kama mimi kuanza kitabu chini sasa katika
dirisha hili, basi mimi kupata

217
00:10:18,640 --> 00:10:19,980
majibu headers.

218
00:10:19,980 --> 00:10:23,270
Hii ilikuwa ni nini katika virtual
bahasha kwamba akarudi kutoka

219
00:10:23,270 --> 00:10:24,095
Facebook.com.

220
00:10:24,095 --> 00:10:27,390
Na kama mimi bofya View Chanzo tu
kuona Nakala ghafi ya hayo,

221
00:10:27,390 --> 00:10:28,400
taarifa mambo machache.

222
00:10:28,400 --> 00:10:32,130
Moja, Facebook pia anaongea huo
itifaki, toleo 1.1 yake.

223
00:10:32,130 --> 00:10:33,390
Hivyo kwamba ni nzuri.

224
00:10:33,390 --> 00:10:36,820
Lakini hali ya kanuni ya 301,
wakiongozwa kudumu.

225
00:10:36,820 --> 00:10:38,880
>> Vizuri, ambapo heck hakuwa Facebook kwenda?

226
00:10:38,880 --> 00:10:40,430
Nini hii kujaribu kufikisha kwetu?

227
00:10:40,430 --> 00:10:44,310
Naam, taarifa chini hapa kuna mwingine
header kuitwa Location.

228
00:10:44,310 --> 00:10:51,050
Hivyo ni kwa nini Facebook akiniambia kwamba wao
wakiongozwa kudumu kwa URL kwamba

229
00:10:51,050 --> 00:10:53,580
karibu na Eneo?

230
00:10:53,580 --> 00:10:54,962
Nimesahau www.

231
00:10:54,962 --> 00:10:56,250
>> Ili kwamba ilikuwa uchaguzi wangu.

232
00:10:56,250 --> 00:11:00,450
Kwa kweli, wengi wetu mara chache, pengine,
aina www.whatever.com siku hizi.

233
00:11:00,450 --> 00:11:03,390
Lakini zinageuka msimamizi wa mfumo,
kama ya Facebook, unaweza

234
00:11:03,390 --> 00:11:06,800
configure server yao katika namna
kwamba aidha Facebook.com kazi, au

235
00:11:06,800 --> 00:11:12,450
www.Facebook.com kazi, au, kwa kweli,
yoyote kiambishi vile mbele ya zao

236
00:11:12,450 --> 00:11:13,210
jina la uwanja.

237
00:11:13,210 --> 00:11:14,500
Hivyo wameweza kufanyika kwamba kwa ajili yetu.

238
00:11:14,500 --> 00:11:16,910
Na wao ni imetuma sisi, pengine
kwa baadhi ya kiufundi,

239
00:11:16,910 --> 00:11:18,100
sababu baadhi ya masoko.

240
00:11:18,100 --> 00:11:21,570
Wao wanataka tu canonicalize
juu ya www.Facebook.com.

241
00:11:21,570 --> 00:11:24,040
>> Lakini si kwamba kabisa hiyo.

242
00:11:24,040 --> 00:11:28,560
Kama mimi kitabu hapa chini, hebu
kuona nini kinatokea.

243
00:11:28,560 --> 00:11:30,810
Hii ni kuwaambia mimi sisi
wakiongozwa kudumu ya

244
00:11:30,810 --> 00:11:33,450
http://www.Facebook.com.

245
00:11:33,450 --> 00:11:36,620
Basi hebu angalia ombi pili
kwamba browser yangu inapeleka.

246
00:11:36,620 --> 00:11:40,070
Kwa bahati mbaya, inaonekana kama Facebook
ina wakiongozwa tena kwa sababu ya pili

247
00:11:40,070 --> 00:11:44,420
ombi, kwa kuchagua kwamba URL badala yake,
anasema kwamba, pia, wakiongozwa

248
00:11:44,420 --> 00:11:45,010
kudumu.

249
00:11:45,010 --> 00:11:48,140
Na napenda kitabu chini hapa
kwa headers majibu.

250
00:11:48,140 --> 00:11:51,530
Ambapo ina Facebook gone sasa?

251
00:11:51,530 --> 00:11:52,680
>> Hivyo HTTPS.

252
00:11:52,680 --> 00:11:56,130
Hivyo sasa Facebook imeanza,
hasa katika mwanga wa sasa

253
00:11:56,130 --> 00:11:59,750
matukio katika miezi ya karibuni, hasa na
pia katika kipindi cha miaka michache

254
00:11:59,750 --> 00:12:03,670
kumlazimisha yote ya watumiaji wao, katika mema
njia, kwa kutumia https, ambayo ni zaidi

255
00:12:03,670 --> 00:12:06,210
salama, ingawa si kabisa salama.

256
00:12:06,210 --> 00:12:10,000
Na hivyo sasa ukurasa wangu, browser yangu ni
kwenda kuomba hii URL tatu.

257
00:12:10,000 --> 00:12:14,710
Na sasa, hatimaye, sisi kupata
vinginevyo siri 200 OK.

258
00:12:14,710 --> 00:12:18,830
>> Basi nini katika dunia au yote ya
hizi safu nyingine chini hapa.

259
00:12:18,830 --> 00:12:22,630
Mimi literally typed jambo moja, na yangu
browser inaonekana kuwa aliomba kama

260
00:12:22,630 --> 00:12:23,840
20 baadhi ya mambo ya isiyo ya kawaida.

261
00:12:23,840 --> 00:12:24,640
Hiyo ni nini?

262
00:12:24,640 --> 00:12:25,810
>> Watazamaji: Scripts?

263
00:12:25,810 --> 00:12:28,460
>> SPIKA 1: Scripts, hivyo nyingine files
imeandikwa katika lugha inayoitwa

264
00:12:28,460 --> 00:12:30,780
JavaScript, ambayo, tena, tutaweza
kuona kidogo ya Jumatano.

265
00:12:30,780 --> 00:12:32,760
Nini kingine?

266
00:12:32,760 --> 00:12:33,390
Style karatasi.

267
00:12:33,390 --> 00:12:36,350
Hivyo kitu katika lugha inayoitwa
CSS, ambayo tutaweza kuona katika kidogo.

268
00:12:36,350 --> 00:12:40,690
Gifs, na jpegs, na PNGs, na picha,
na movie files - kila ukurasa wa mtandao

269
00:12:40,690 --> 00:12:43,280
imekuwa ni zaidi uwezekano katika
fomu ya faili.

270
00:12:43,280 --> 00:12:46,750
Na hivyo kile sisi ni kuona upande wa kushoto
mkono upande kuna wote wa files

271
00:12:46,750 --> 00:12:50,280
kwamba alikuwa Chrome kupakua,
recursively, kama wewe, ili

272
00:12:50,280 --> 00:12:52,430
kutunga ukamilifu wa ukurasa.

273
00:12:52,430 --> 00:12:56,210
>> Hivyo yale tuliona wakati iliyopita na Google,
kama mimi bonyeza Elements

274
00:12:56,210 --> 00:13:00,470
tab, hii, uhakika, ni HTML,
lugha ambayo composes ukurasa huu.

275
00:13:00,470 --> 00:13:01,890
Lakini kuna mashada ya mambo mengine.

276
00:13:01,890 --> 00:13:02,640
Kuna alama.

277
00:13:02,640 --> 00:13:04,680
Kuna wale bluu-ish
icons zaidi ya hapo.

278
00:13:04,680 --> 00:13:07,610
Na kuna mambo mengine bado juu ya
ukurasa kuwa wenyewe ili kuwa

279
00:13:07,610 --> 00:13:08,610
tofauti files.

280
00:13:08,610 --> 00:13:11,860
>> Basi nini kizuri kuhusu browser ni kwamba
inaonekana katika lugha tunakwenda

281
00:13:11,860 --> 00:13:14,690
kuanza kuandika, au wewe wameweza tayari
ilianza kuandika katika P seti 7, takwimu

282
00:13:14,690 --> 00:13:17,970
nje ambapo wale files kuishi, na
huenda na grabs yao pia.

283
00:13:17,970 --> 00:13:21,010
Na siwezi kusisitiza kutosha, hata
ingawa baadhi ya hii ili kuangalia kidogo

284
00:13:21,010 --> 00:13:24,820
arcane au balaa katika mtazamo wa kwanza,
kujifunza jinsi ya mpango

285
00:13:24,820 --> 00:13:28,500
maombi kwa ajili ya mtandao, ni
mchango mkubwa sana kwa kuelewa jinsi

286
00:13:28,500 --> 00:13:29,410
zana kidogo kazi.

287
00:13:29,410 --> 00:13:33,830
Hizi ni aina ya kama GDB kama zana,
lakini rahisi sana, hatimaye, kutumia -

288
00:13:33,830 --> 00:13:37,690
na kwa kweli anatoa macho katika kile
tumekuwa kuchukua kwa nafasi kwa

289
00:13:37,690 --> 00:13:39,170
kabisa muda sasa.

290
00:13:39,170 --> 00:13:42,270
>> Basi nini tunaweza kufanya kwa sasa
habari hii?

291
00:13:42,270 --> 00:13:44,875
Naam, hebu kweli kuangalia
dhana za msingi HTML.

292
00:13:44,875 --> 00:13:49,025
Na tutaweza kuahirisha, kama sisi tayari kuwa, kwa
sehemu ya wiki hii, kwa tatizo

293
00:13:49,025 --> 00:13:53,260
kuweka 7 vipimo, na baadhi ya zaidi
maelezo ya lugha hizi.

294
00:13:53,260 --> 00:13:57,020
Lakini hebu angalia kama hatuwezi rangi
picha ya nini unapaswa kuelewa

295
00:13:57,020 --> 00:13:57,940
ujumla hapa.

296
00:13:57,940 --> 00:14:02,280
>> Hivyo HTML, HyperText ghafi lugha,
si lugha ya programu.

297
00:14:02,280 --> 00:14:03,520
Je, hiyo kweli maana?

298
00:14:03,520 --> 00:14:05,690
Hivyo HTML inaonekana kama hii.

299
00:14:05,690 --> 00:14:06,810
Na baadhi yenu tayari kujua hii.

300
00:14:06,810 --> 00:14:08,130
Baadhi yenu wamekuwa wakifanya
hii kwa muda fulani.

301
00:14:08,130 --> 00:14:10,270
Lakini hebu angalia kama hatuwezi kujaza
katika baadhi ya nafasi zilizoachwa wazi pia.

302
00:14:10,270 --> 00:14:11,760
Hivyo taarifa michache ya mambo hapa.

303
00:14:11,760 --> 00:14:13,030
Moja, ni maandishi tu.

304
00:14:13,030 --> 00:14:15,960
Hivyo ni kama kanuni ya chanzo katika
C, au baadhi ya lugha nyingine.

305
00:14:15,960 --> 00:14:17,750
>> Taarifa kwamba inaonekana kuna
kuwa mfano hapa.

306
00:14:17,750 --> 00:14:20,870
Kuna anatengeneza, lakini kitaalam
anatengeneza ni binadamu tu

307
00:14:20,870 --> 00:14:21,205
mkataba.

308
00:14:21,205 --> 00:14:24,980
browsers hajali kama kuna mpya
mistari na tabo kama tunaona pale.

309
00:14:24,980 --> 00:14:27,410
Lakini taarifa kwamba kuna
symmetries hapa.

310
00:14:27,410 --> 00:14:31,180
Kuna kile Mimi nitakuita, juu ya
faili hii, tag wazi, au kuanza

311
00:14:31,180 --> 00:14:33,030
tag, iitwayo HTML.

312
00:14:33,030 --> 00:14:36,800
Na kisha, chini chini, kikamilifu lined
juu, kiasi kama sisi kufanya na braces curly,

313
00:14:36,800 --> 00:14:40,910
tunaona mabano wazi, mbele
kufyeka, HTML, karibu bracket.

314
00:14:40,910 --> 00:14:44,610
Hivyo kwamba ni karibu sambamba
tag, au mwisho tag, kwa jambo hilo.

315
00:14:44,610 --> 00:14:47,990
>> Pamoja, kila kitu ndani ya
kinachojulikana wazi tag na tag karibu

316
00:14:47,990 --> 00:14:50,440
kutunga kile Tutamwita kipengele.

317
00:14:50,440 --> 00:14:53,910
Na tutaweza kuona, katika muda tu, ni
kweli kama nodi katika miti.

318
00:14:53,910 --> 00:14:57,470
Kwa sababu kama unadhani kuhusu sasa
anatengeneza hiyo ni kumaanisha hapa, wewe

319
00:14:57,470 --> 00:15:00,780
aina ya kuwa, kama, grandparent
nodi iitwayo HTML.

320
00:15:00,780 --> 00:15:06,870
Jinsi watoto wengi utasema, msingi
juu ya picha hii, kipengele HTML ina?

321
00:15:06,870 --> 00:15:07,720
>> Hivyo pengine mbili.

322
00:15:07,720 --> 00:15:10,240
Moja ni kipengele kichwa, inaonekana.

323
00:15:10,240 --> 00:15:11,710
Na moja ni kipengele mwili.

324
00:15:11,710 --> 00:15:12,555
Na kwa nini watoto wawili?

325
00:15:12,555 --> 00:15:15,840
Naam, mimi nina aina tu ya inferring kwamba kama
Nina wazi kichwa tag na kisha

326
00:15:15,840 --> 00:15:17,820
karibu kichwa tag, kwamba ni kipengele.

327
00:15:17,820 --> 00:15:21,200
Na kisha, kama kuna mwingine mwili wazi
tag na karibu tag mwili, hiyo ni kama

328
00:15:21,200 --> 00:15:22,340
kipengele kingine.

329
00:15:22,340 --> 00:15:26,000
Hivyo kwa mantiki kwamba kama mimi aina ya mzunguko
picha upande wake, ni

330
00:15:26,000 --> 00:15:29,910
kama kuwa na tag HTML, na kisha
kichwa tag, na kisha tag mwili, na

331
00:15:29,910 --> 00:15:34,290
kisha baadhi ya maandishi, hello dunia, yakining'inia
mbali ya tag mwili yenyewe.

332
00:15:34,290 --> 00:15:36,620
>> Hivyo tunaweza kuchora picha kwamba
ili kuangalia kama hii.

333
00:15:36,620 --> 00:15:38,020
maumbo ni holela.

334
00:15:38,020 --> 00:15:40,870
Lakini taarifa kwamba nimepata kutumika aina ya
duaradufu juu ili kuwakilisha

335
00:15:40,870 --> 00:15:41,860
hati yenyewe.

336
00:15:41,860 --> 00:15:45,980
Zinageuka kuna kuwa mambo mengine
ndani ya ukurasa wa mtandao kwamba nimekuwa si

337
00:15:45,980 --> 00:15:46,940
inayotolewa hapa.

338
00:15:46,940 --> 00:15:50,800
Hivyo tunakwenda hata hutegemea HTML
nodi mbali ya nodi kinachojulikana hati.

339
00:15:50,800 --> 00:15:53,730
Na kisha tuna kichwa na
mwili na cheo, ilani,

340
00:15:53,730 --> 00:15:55,360
ambayo ni Furushi zaidi.

341
00:15:55,360 --> 00:15:58,650
Mimi si bother kuweka ziada line
mapumziko ndani ya tag jina.

342
00:15:58,650 --> 00:16:02,710
Ni tu waliona kama ni mara kupata
kidogo sana verbose.

343
00:16:02,710 --> 00:16:07,000
Hivyo mimi kushoto ni katika mstari mmoja pale, pamoja na
wazi cheo, hello dunia, karibu cheo.

344
00:16:07,000 --> 00:16:09,380
Na kisha tuna baadhi ya maandishi
dangling mbali ya hapa.

345
00:16:09,380 --> 00:16:12,200
>> Hivyo picha hii kuja nyuma
yetu wakati sisi kupiga mbizi katika JavaScript.

346
00:16:12,200 --> 00:16:15,110
Na ufahamu kwamba wakati wewe
kuandika HTML kama hii, nini

347
00:16:15,110 --> 00:16:16,250
ni browser kufanya?

348
00:16:16,250 --> 00:16:19,290
Naam, hatuwezi kuwa na wasiwasi kuhusu
ni jinsi gani kufanya hivyo, au kwa nini

349
00:16:19,290 --> 00:16:23,090
algorithm, lakini mwisho wa siku,
wakati browser inapata HTML kama

350
00:16:23,090 --> 00:16:27,510
kwamba, kutoka Facebook au Google, ni parses
ni, hivyo kusema, ni husoma,

351
00:16:27,510 --> 00:16:31,160
na kitu kama fread, juu ya
chini, kushoto na kulia, na kama ni

352
00:16:31,160 --> 00:16:36,300
anatambua, oh, tag wazi, na kisha kufunga
tag, ni kuanza malloc, hivyo kusema,

353
00:16:36,300 --> 00:16:37,800
nodi katika mti.

354
00:16:37,800 --> 00:16:41,130
Na wakati atakutana, kama tumekuwa alisema
hapa na anatengeneza,

355
00:16:41,130 --> 00:16:45,400
mtoto nodi, ni mallocs nodi kwa kuwa
na masharti ya kwamba kwa mti.

356
00:16:45,400 --> 00:16:49,150
>> Hivyo miundo mti, binary miti,
ternary miti, na miti kubwa, kwamba

357
00:16:49,150 --> 00:16:53,380
sisi akapiga saa wiki moja au mbili zilizopita, ilani
kwamba kanuni hiyo ni

358
00:16:53,380 --> 00:16:54,220
kuja nyuma yetu.

359
00:16:54,220 --> 00:16:57,590
Na anaye kutekelezwa, Chrome chochote
timu gani kwamba, labda alikuwa

360
00:16:57,590 --> 00:17:00,800
kutekeleza baadhi ya aina ya muundo wa mti
chini ya Hood.

361
00:17:00,800 --> 00:17:05,329
Na kwamba yenyewe ni pengine katika
Lugha kama C, au C + +, au chini

362
00:17:05,329 --> 00:17:08,540
ngazi ya lugha ambayo tutaweza
sasa kutumia atop mtandao.

363
00:17:08,540 --> 00:17:11,200
>> Hivyo kwa sasa, labda, hii itakuwa
kufanya zaidi ya akili.

364
00:17:11,200 --> 00:17:15,420
Halisi tattoo kutoka kwa baadhi guy ambaye nguvu
majuto ni hatimaye, aina ya.

365
00:17:15,420 --> 00:17:17,359
OK, haki ya wote, hivyo mengi ya ucheshi mtandao.

366
00:17:17,359 --> 00:17:18,599
Siyo kweli kwenda
juu ya hivyo vizuri leo.

367
00:17:18,599 --> 00:17:19,560
Hivyo tutaweza kuendelea.

368
00:17:19,560 --> 00:17:20,180
Wote haki.

369
00:17:20,180 --> 00:17:22,760
>> Hivyo hebu tuangalie sasa
katika mifano michache.

370
00:17:22,760 --> 00:17:24,660
rahisi iwezekanavyo
kitu wanaweza kuwa hii.

371
00:17:24,660 --> 00:17:29,170
Mimi nina kwenda mbele na kufungua katika
gedit faili inayoitwa hello.php.

372
00:17:29,170 --> 00:17:31,730

373
00:17:31,730 --> 00:17:36,330
Na ndani ya hapa, mimi naenda kwa haraka
tu kufanya hivyo, printf, kunukuu

374
00:17:36,330 --> 00:17:38,590
unquote, "hello dunia."

375
00:17:38,590 --> 00:17:42,460
>> Hivyo taarifa, na mimi itabidi kufanya wangu backslash n,
Nimekuwa bothered kutangaza kuu.

376
00:17:42,460 --> 00:17:45,310
Zinageuka, katika php, na mengi ya
lugha, huna haja kuu

377
00:17:45,310 --> 00:17:46,090
kazi per se.

378
00:17:46,090 --> 00:17:47,720
Unaweza tu kuanza kuandika
programu yako.

379
00:17:47,720 --> 00:17:51,210
Sasa, wakati mimi ila faili hii, mimi nina taarifa
kwenda na kufanya yafuatayo.

380
00:17:51,210 --> 00:17:55,360
Mimi si kwenda kutumia kufanya, na mimi si
kwenda kutumia Clang sababu PHP, tofauti

381
00:17:55,360 --> 00:17:57,400
C, si lugha ulioandaliwa.

382
00:17:57,400 --> 00:18:01,400
Ni kile kinachoitwa kufasiriwa
lugha, ambayo ina maana kwamba wewe kukimbia

383
00:18:01,400 --> 00:18:04,650
kama pembejeo kupitia mpango mwingine
iitwayo mkalimani.

384
00:18:04,650 --> 00:18:08,150
Na mpango kwamba husoma, juu hadi
chini, kushoto na kulia, na anafanya

385
00:18:08,150 --> 00:18:09,290
chochote wewe kuwaambia yake ya kufanya.

386
00:18:09,290 --> 00:18:12,920
>> Hivyo katika kesi hii hapa nina
mstari mmoja kwamba anasema printf.

387
00:18:12,920 --> 00:18:17,990
Hivyo wakati mimi kukimbia hii kanuni ya chanzo,
hello.php, ingawa mpango kwamba

388
00:18:17,990 --> 00:18:22,830
ikitokea, conveniently, kuitwa PHP,
kwamba PHP mpango ni kwenda kusoma

389
00:18:22,830 --> 00:18:26,120
faili hili, juu hadi chini, kushoto na kulia,
na ni kwenda kufanya kile Mimi

390
00:18:26,120 --> 00:18:30,110
kuwaambia ni kufanya - utekelezaji kanuni, na kama
kwamba haitambui kitu, tu

391
00:18:30,110 --> 00:18:31,320
kutema nje.

392
00:18:31,320 --> 00:18:34,940
Hivyo nina kwenda mbele na
kukimbia PHP ya hello.php.

393
00:18:34,940 --> 00:18:37,110
Kuingia.

394
00:18:37,110 --> 00:18:39,690
>> Na si kwamba mimi kabisa nini lengo.

395
00:18:39,690 --> 00:18:40,530
Naam, kwa nini ni kwamba?

396
00:18:40,530 --> 00:18:43,910
Naam, PHP ni lugha hiyo ni kweli
iliyoundwa na kuwa na haki

397
00:18:43,910 --> 00:18:46,150
iliyounganishwa na mtandao.

398
00:18:46,150 --> 00:18:50,460
Wakati wa kufanya kurasa za mtandao na lugha hii
PHP, kama tutaweza kuona hivi karibuni, tutaweza

399
00:18:50,460 --> 00:18:54,560
wanataka kufanya kitu kama magazeti
nje mistari kama hii.

400
00:18:54,560 --> 00:18:55,940
>> Hivyo nina kwenda kufanya hili.

401
00:18:55,940 --> 00:19:00,810
Wazi bracket, alama ya swali, PHP, na
sasa mimi nina kwenda tu Indent tu kuweka

402
00:19:00,810 --> 00:19:01,960
mambo mazuri.

403
00:19:01,960 --> 00:19:04,910
Na sasa mimi naenda kufanya swali
alama ya mabano wa karibu.

404
00:19:04,910 --> 00:19:06,270
Hivyo kuna kidogo ya asymmetry hapa.

405
00:19:06,270 --> 00:19:07,490
Huwezi kufanya hili.

406
00:19:07,490 --> 00:19:10,530
Na si kufanya kufyeka, hivyo
PHP ni tofauti kidogo.

407
00:19:10,530 --> 00:19:14,610
>> Lakini sasa, kama mimi rerun mpango huu,
PHP hello.php, sasa mimi

408
00:19:14,610 --> 00:19:16,090
kweli kupata Dunia Hello.

409
00:19:16,090 --> 00:19:17,750
Na tutaweza kuona nini hii ni muhimu.

410
00:19:17,750 --> 00:19:20,960
Moja, ni inaruhusu mimi bayana,
super wazi, hii ni

411
00:19:20,960 --> 00:19:22,480
kanuni, nitafanya hii.

412
00:19:22,480 --> 00:19:25,480
Na kwamba ni kweli nini hawa
vitambulisho maalum kuashiria hapa.

413
00:19:25,480 --> 00:19:30,330
>> Lakini pia ina maana kwamba kama mimi tu kufanya
kitu kama mimi na lengo zaidi ya hapa, kwamba

414
00:19:30,330 --> 00:19:34,000
ina maana kwamba, literally, kwamba tu
kuchapishwa bila ya haja ya

415
00:19:34,000 --> 00:19:36,850
kweli kuwaita printf, au magazeti,
au kazi yoyote kama hiyo.

416
00:19:36,850 --> 00:19:39,445
Hivyo tutaweza kuja nyuma na kwamba
katika muda tu.

417
00:19:39,445 --> 00:19:40,470
>> Kwanza, hebu kufanya hili.

418
00:19:40,470 --> 00:19:43,950
Ndani ya appliance, tuna
saraka ya kuitwa Vhosts, kwa virtual

419
00:19:43,950 --> 00:19:47,000
majeshi, kufyeka jeshi mitaa, kufyeka umma.

420
00:19:47,000 --> 00:19:50,240
Hivyo ni verbose kidogo, lakini hadithi ya muda mrefu
mfupi, appliance ni iliyoundwa si

421
00:19:50,240 --> 00:19:53,770
tu kusaidia C. Ni pia
iliyoundwa kwa msaada wa PHP.

422
00:19:53,770 --> 00:19:57,440
Lakini ni pia iliyoundwa na kuwa mtandao
server, na server database.

423
00:19:57,440 --> 00:20:00,230
Na ni iliyoundwa, na kwa kweli kimeundwa,
kuwa kukumbusha yoyote

424
00:20:00,230 --> 00:20:04,230
kibiashara web hosting kampuni ambayo
unaweza kulipa $ 5 kwa mwezi kwa ajili ya,

425
00:20:04,230 --> 00:20:05,040
$ 100 kwa mwezi kwa ajili ya.

426
00:20:05,040 --> 00:20:08,200
Chochote huduma ni, ni kimeundwa
kwa kuwa ni sawa na

427
00:20:08,200 --> 00:20:10,170
ulimwengu halisi uzalishaji server.

428
00:20:10,170 --> 00:20:13,485
>> Na nini maana ni kwamba mbio juu ya
appliance ni mtandao wa kompyuta programu.

429
00:20:13,485 --> 00:20:15,060
Inajitokeza kuitwa Apache.

430
00:20:15,060 --> 00:20:17,790
Ni tu bure, na ya chanzo huria,
na maarufu sana.

431
00:20:17,790 --> 00:20:23,260
Na sisi kimeundwa Apache kujua
kwamba kama mimi kutembelea URL fulani, na

432
00:20:23,260 --> 00:20:28,060
Chrome browser au ndani ya
appliance, kuangalia katika saraka hii

433
00:20:28,060 --> 00:20:31,030
kwa files kwamba
user ni kuomba.

434
00:20:31,030 --> 00:20:32,790
>> Kwa maneno mengine, basi mimi
kwenda mbele na kufanya hii.

435
00:20:32,790 --> 00:20:36,890
Ndani ya saraka yangu ya umma, mimi naenda
kwa kwenda mbele na kuunda faili

436
00:20:36,890 --> 00:20:39,580
kuitwa index.html.

437
00:20:39,580 --> 00:20:41,000
Kwamba anatoa mimi tab hapa.

438
00:20:41,000 --> 00:20:44,210
Na mimi nina kwenda kwa haraka sana
na kwenda mbele na bang nje

439
00:20:44,210 --> 00:20:45,010
mpango huu hapa.

440
00:20:45,010 --> 00:20:48,410
Doctype HTML, ambayo kwa sasa, tu
kudhani una aina.

441
00:20:48,410 --> 00:20:53,490
Ni tu tag arcane, si kwamba
kweli HTML tag, kwamba unasema kwamba

442
00:20:53,490 --> 00:20:55,050
inakuja HTML baadhi.

443
00:20:55,050 --> 00:20:57,400
>> Mimi nina kwenda mbele na recreate
yale tuliona wakati iliyopita.

444
00:20:57,400 --> 00:20:58,650
Hapa ni mkuu wa ukurasa.

445
00:20:58,650 --> 00:21:01,170
Ndani ya kichwa mara -

446
00:21:01,170 --> 00:21:01,890
hivyo jina.

447
00:21:01,890 --> 00:21:04,340
Hivyo tutaweza kusema hello, dunia.

448
00:21:04,340 --> 00:21:06,570
Na kisha chini hapa ilikuwa tag mwili.

449
00:21:06,570 --> 00:21:08,580
Hebu karibu tag mwili.

450
00:21:08,580 --> 00:21:12,280
Na kisha katika hapa mimi itabidi pia kusema,
tu kwa ajili ya ufafanuzi, hello dunia.

451
00:21:12,280 --> 00:21:14,770
>> Hivyo hii ni, arguably, rahisi
inawezekana mtandao ukurasa

452
00:21:14,770 --> 00:21:15,770
wanaweza kufanya hiyo ni halali.

453
00:21:15,770 --> 00:21:17,030
Ni syntactically halali.

454
00:21:17,030 --> 00:21:18,620
Kila kitu ambacho kufunguliwa kufungwa.

455
00:21:18,620 --> 00:21:20,910
Kila kitu ni nicely katika
styled na indented.

456
00:21:20,910 --> 00:21:23,600
Basi hebu angalia sasa jinsi mimi
wanaweza kupata faili hii.

457
00:21:23,600 --> 00:21:25,540
>> Naam, napenda kwenda kwa Chrome hapa.

458
00:21:25,540 --> 00:21:35,050
Na napenda kwenda
http://localhost/index.html.

459
00:21:35,050 --> 00:21:36,200
Basi nini jeshi la mtaa?

460
00:21:36,200 --> 00:21:39,400
Naam, zaidi ya kompyuta yoyote katika dunia,
Linux, Mac OS, Windows, ina jina la utani

461
00:21:39,400 --> 00:21:40,680
linaitwa jeshi.

462
00:21:40,680 --> 00:21:42,900
Hivyo kama wewe milele unataka kuzungumza
kwa kompyuta yako mwenyewe -

463
00:21:42,900 --> 00:21:45,140
angalau, oddly reflexively -

464
00:21:45,140 --> 00:21:47,080
hatajali ndani ya jeshi.

465
00:21:47,080 --> 00:21:50,390
Bila kujali kompyuta yako halisi ni
kuitwa, kama ni ya Daudi MacBook

466
00:21:50,390 --> 00:21:52,490
Hewa, au kitu zaidi
verbose kama hiyo.

467
00:21:52,490 --> 00:21:57,760
>> Hivyo URL hii ni inaonekana kwenda kutumia
HTTP kuzungumza na mwenyeji wa mitaa,

468
00:21:57,760 --> 00:22:00,800
kompyuta moja, appliance, na
ni kwenda kuomba, tu kuchukua

469
00:22:00,800 --> 00:22:02,570
nadhani, nini faili?

470
00:22:02,570 --> 00:22:04,460
Index.html.

471
00:22:04,460 --> 00:22:08,650
Hivyo appliance imekuwa kimeundwa katika
mapema ili kujua kuwa kama mimi nina kuuliza

472
00:22:08,650 --> 00:22:13,460
kwa kitu kama index.html, kuangalia kwa
katika folder inaitwa Vhosts, katika

473
00:22:13,460 --> 00:22:17,950
folder inaitwa localhost, katika folder
humo inaitwa umma.

474
00:22:17,950 --> 00:22:20,400
Hiyo ambapo wote wa umma wangu
mafaili ni kwenda kuwa.

475
00:22:20,400 --> 00:22:22,610
Hivyo mimi nina sasa kwenda hit kuingia.

476
00:22:22,610 --> 00:22:27,100
>> Na damn, kuna haramu kwamba
ujumbe, inayojulikana kama 403,

477
00:22:27,100 --> 00:22:28,490
numeric kanuni kwa ajili yake.

478
00:22:28,490 --> 00:22:30,130
Hivyo nini makosa hapa?

479
00:22:30,130 --> 00:22:33,210
Naam, ni haitoshi tu kuweka
faili ndani ya folda yangu.

480
00:22:33,210 --> 00:22:35,790
Mimi haja kwa kweli kufanya yafuatayo.

481
00:22:35,790 --> 00:22:40,210
>> Basi mimi kwenda katika saraka yangu Vhosts, katika
localhost, ndani ya umma, na basi

482
00:22:40,210 --> 00:22:41,680
mimi kufanya ls dash l.

483
00:22:41,680 --> 00:22:44,510
Na kuna wachache na mambo mengine
katika hapa kwa madhumuni ya leo.

484
00:22:44,510 --> 00:22:50,540
Lakini taarifa upande wa kushoto, karibu
kwa index.html, sisi tu kuona RW moja.

485
00:22:50,540 --> 00:22:53,560
Na katika siku za nyuma, nini
ina RW alisimama kwa?

486
00:22:53,560 --> 00:22:54,240
>> Tu kusoma wala kuandika.

487
00:22:54,240 --> 00:22:58,000
ukweli kwamba anasema rw upande wa kushoto
maana mimi, mmiliki wa faili hili, unaweza

488
00:22:58,000 --> 00:22:59,020
kusoma au kuandika.

489
00:22:59,020 --> 00:23:05,010
Lakini mimi haja ya basi watu wote katika
dunia kusoma hii, ingawa si kuandika.

490
00:23:05,010 --> 00:23:09,650
Hivyo nina kwenda na mabadiliko ya mfumo wa
faili, chmod, kila r pamoja na kutoa

491
00:23:09,650 --> 00:23:13,910
kila mtu kusoma ruhusa ya
faili inayoitwa index.html.

492
00:23:13,910 --> 00:23:18,040
>> Na kama mimi sasa retype ls dash l, ilani
kwamba, zaidi ya hapa, baadhi ya zaidi

493
00:23:18,040 --> 00:23:19,160
A ya kuwa popped up.

494
00:23:19,160 --> 00:23:21,090
Na kwa sasa, spec huenda
kwa undani zaidi.

495
00:23:21,090 --> 00:23:24,450
Kwa ajili ya P seti 7, kwamba tu ina maana kila mtu
sasa unaweza kusoma faili hili.

496
00:23:24,450 --> 00:23:27,790
Kama mimi kurejea browser yangu
sasa na Reload, voilà.

497
00:23:27,790 --> 00:23:28,750
Hujambo dunia.

498
00:23:28,750 --> 00:23:32,260
>> Na naweza hata kufungua yangu zana Chrome
na kuona, na kama tu na Google

499
00:23:32,260 --> 00:23:34,590
Facebook kwamba kuna HTML yangu,
formatted kidogo

500
00:23:34,590 --> 00:23:35,930
tofauti na colorized.

501
00:23:35,930 --> 00:23:40,450
Kama mimi kwenda tab mtandao na Reload
ukurasa, taarifa kwamba kuna kupata

502
00:23:40,450 --> 00:23:42,900
kuomba kwamba Chrome ni kutuma
kwa appliance.

503
00:23:42,900 --> 00:23:46,020
Kuna 200 kwa ajili ya kwamba
Hasa faili.

504
00:23:46,020 --> 00:23:49,340
Hivyo katika muda mfupi, hii ni jinsi gani hawa wote
vipande mbalimbali ni kuja pamoja.

505
00:23:49,340 --> 00:23:53,530
Ni hivyo tu hutokea kwamba mtandao wa kompyuta
sisi ni kutumia haki ya sasa si ya kijijini,

506
00:23:53,530 --> 00:23:54,210
kama Facebook.

507
00:23:54,210 --> 00:23:58,330
Ni halisi kwenye kompyuta moja,
ambayo ni sawa kabisa.

508
00:23:58,330 --> 00:24:00,590
>> Basi nini zaidi tunaweza kufanya katika ukurasa wa mtandao?

509
00:24:00,590 --> 00:24:03,110
Naam, tu, hebu mpepea kupitia
michache ya mambo haya.

510
00:24:03,110 --> 00:24:07,860
Lakini napenda kwenda mbele na kufungua upya
Gedit na index.html.

511
00:24:07,860 --> 00:24:13,980
Na napenda kwenda mbele na kusema hujambo CS50,
kuokoa faili hii, kwenda nyuma ya

512
00:24:13,980 --> 00:24:16,260
browser, kweli aghali mabadiliko.

513
00:24:16,260 --> 00:24:19,130
>> Lakini nini kama tunataka kweli
zilizounganishwa na kitu sasa?

514
00:24:19,130 --> 00:24:23,480
Hivyo zinageuka kwamba tunaweza kuwa na
viungo katika HTML kwamba ni tu vitambulisho

515
00:24:23,480 --> 00:24:24,140
wenyewe.

516
00:24:24,140 --> 00:24:27,320
Inajitokeza kuitwa
nanga tag. href sawa

517
00:24:27,320 --> 00:24:33,190
https://www.cs50.net, www.cs50.net
karibu quote, karibu bracket.

518
00:24:33,190 --> 00:24:35,230
Na sasa hebu angalia nini
mwingine akija ijayo.

519
00:24:35,230 --> 00:24:36,500
>> Nilipofungua tag.

520
00:24:36,500 --> 00:24:38,990
Mimi sasa haja ya kuwapa
maneno kama CS50.

521
00:24:38,990 --> 00:24:40,600
Hebu karibu tag.

522
00:24:40,600 --> 00:24:42,010
Na taarifa ya mambo machache.

523
00:24:42,010 --> 00:24:45,270
Hata ingawa kuna jambo hili fumbo
hapa, mimi si mara kwa mara ni wakati

524
00:24:45,270 --> 00:24:46,010
karibu tag.

525
00:24:46,010 --> 00:24:48,230
Wewe karibu tu tag
na jina lake peke yake.

526
00:24:48,230 --> 00:24:50,940
Na hii ni nini inayojulikana kama
sifa na thamani.

527
00:24:50,940 --> 00:24:56,070
Sifa tu kurekebisha tabia
wa baadhi tag ndani ya ukurasa.

528
00:24:56,070 --> 00:24:59,150
>> Hivyo hii ni kubainisha kwamba mfumuko
kumbukumbu, njia dhana ya kusema

529
00:24:59,150 --> 00:25:03,660
URL kwa nanga hii, kwa ajili ya hii
kiungo, lazima CS50.net.

530
00:25:03,660 --> 00:25:07,440
Na maandishi kwamba tunataka kuonyesha
user ni kwamba URL mbichi, lakini badala

531
00:25:07,440 --> 00:25:08,730
CS50 neno.

532
00:25:08,730 --> 00:25:13,710
>> Hivyo kama sasa mimi Reload, napenda kuvuta kwa
uwazi, basi mimi upya ukurasa,

533
00:25:13,710 --> 00:25:16,460
taarifa kwamba tuna hii shule ya zamani
bluu alitilia kiungo.

534
00:25:16,460 --> 00:25:20,000
Na kama mimi hover juu yake, na ni kwenda
kuwa mgumu kuona, katika chini kushoto

535
00:25:20,000 --> 00:25:23,690
mkono kona ya screen, taarifa
ambayo inasema URL ambayo

536
00:25:23,690 --> 00:25:24,430
Mimi nina kwenda.

537
00:25:24,430 --> 00:25:27,940
Na kama mimi unabonyeza huko, voila,
sasa mimi nina kufanya kurasa za mtandao.

538
00:25:27,940 --> 00:25:30,140
Na tumekuwa wakiongozwa wenyewe
kwa ukurasa wa nyumbani.

539
00:25:30,140 --> 00:25:32,670
>> Lakini taarifa ya nini uwezo
hii inatoa yetu.

540
00:25:32,670 --> 00:25:34,890
Usalama ni mengi sana
katika Vogue siku hizi.

541
00:25:34,890 --> 00:25:41,210
Nini kama mimi badala yake kusema kitu kama
hili, na mimi badala yake kwenda, kusema, hebu

542
00:25:41,210 --> 00:25:42,460
kuona, fakeCS50.net.

543
00:25:42,460 --> 00:25:44,660

544
00:25:44,660 --> 00:25:46,360
Reload ukurasa huu.

545
00:25:46,360 --> 00:25:50,180
>> OK, hivyo taarifa hiyo bado inaonekana kama mimi nina
kwenda CS50, isipokuwa jicho wajanja

546
00:25:50,180 --> 00:25:51,560
utakuwa taarifa mimi nina kwenda CS50 bandia.

547
00:25:51,560 --> 00:25:54,550
Mimi guessing uwanja hii si kuchukuliwa.

548
00:25:54,550 --> 00:25:55,960
OK, hivyo si inapatikana.

549
00:25:55,960 --> 00:25:56,600
Hivyo kwamba ni vizuri.

550
00:25:56,600 --> 00:25:57,900
Hakuna mtu kweli ana kwamba uwanja.

551
00:25:57,900 --> 00:26:00,380
>> Lakini hebu kuwa kidogo zaidi malicious
kwa sababu hiyo ni aina ya kijinga.

552
00:26:00,380 --> 00:26:02,240
Nini kama sisi mabadiliko ya hii PayPal.

553
00:26:02,240 --> 00:26:09,960
Na nini kama sisi wito huu, kama,
www.paypal.badguy.com,

554
00:26:09,960 --> 00:26:12,070
chochote uwanja ni.

555
00:26:12,070 --> 00:26:13,700
Kwamba pengine lipo.

556
00:26:13,700 --> 00:26:16,260
Hivyo sasa napenda upya ukurasa.

557
00:26:16,260 --> 00:26:22,890
Na hapa tuna aina ya hadaa
mashambulizi, P-H-I-S-H-I-N-G, ambayo ni

558
00:26:22,890 --> 00:26:26,760
neno silly kutolewa kwa ajili ya mashambulizi ya kwamba
anajaribu habari samaki, au, vizuri zaidi

559
00:26:26,760 --> 00:26:30,450
bado, fedha, kati ya watu na tricking
yao katika kutoa taarifa kwamba

560
00:26:30,450 --> 00:26:31,990
wapate si vinginevyo kufanya.

561
00:26:31,990 --> 00:26:33,500
Hii inaonekana kabisa legit, haki?

562
00:26:33,500 --> 00:26:34,930
Mimi ni lazima kuwa na uhusiano hapa Paypal.com.

563
00:26:34,930 --> 00:26:37,700

564
00:26:37,700 --> 00:26:40,430
Katika haki, kama mimi sexed it up na baadhi ya
graphics, tunaweza kufanya ni kuangalia

565
00:26:40,430 --> 00:26:41,310
zaidi kama PayPal.

566
00:26:41,310 --> 00:26:41,510
Haki?

567
00:26:41,510 --> 00:26:43,815
Kwa sababu mimi naweza, kama kando,
Mimi naweza kwenda Paypal.com.

568
00:26:43,815 --> 00:26:47,110
Na tumekuwa tu kuona jinsi naweza
kuona yote ya HTML yao.

569
00:26:47,110 --> 00:26:50,560
Mimi nilikuwa tu nakala yake na recreate
aesthetics ya Paypal badala ya kwenda

570
00:26:50,560 --> 00:26:51,490
umri wa shule hapa.

571
00:26:51,490 --> 00:26:55,010
Lakini taarifa, bila shaka, na ni kidogo
wadogo bado, tu katika chini

572
00:26:55,010 --> 00:26:59,190
mkono wa kushoto kona, katika kama hatua 10
font, unaona nini URL uko

573
00:26:59,190 --> 00:27:01,310
kweli kwenda kuongozwa.

574
00:27:01,310 --> 00:27:06,580
>> Na hivyo kama ve milele wamezipata spam akisema
kwenda mbele, na wewe ni akaunti

575
00:27:06,580 --> 00:27:07,420
imekuwa kuathirika.

576
00:27:07,420 --> 00:27:10,615
Tafadhali bonyeza kiungo hiki na hebu kujua
password yako ili tuweze kuhakikisha uko

577
00:27:10,615 --> 00:27:13,010
wewe, si milele kufanya hivyo.

578
00:27:13,010 --> 00:27:14,180
Mambo haya lazima kwenda bila kusema.

579
00:27:14,180 --> 00:27:17,670
Lakini ni ajabu amusing, na
kutisha, jinsi kila mwaka huu inaonekana

580
00:27:17,670 --> 00:27:19,660
kutokea kwa baadhi ya mashirika yasiyo ya sifuri
idadi ya watu.

581
00:27:19,660 --> 00:27:21,400
>> Na kwamba ni uzuri
ya hadaa mashambulizi.

582
00:27:21,400 --> 00:27:23,160
Unaweza kutuma nje barua pepe milioni.

583
00:27:23,160 --> 00:27:27,720
Na hata kama 0.01% ya watu kweli
bonyeza Paypal na kukupa yako

584
00:27:27,720 --> 00:27:31,040
password, kwamba bado idadi mashirika yasiyo ya sifuri
ya watu ambao wameweza kutoa tu

585
00:27:31,040 --> 00:27:32,200
pesa zao.

586
00:27:32,200 --> 00:27:36,170
Na kutuma barua pepe, bila shaka, ni kabisa
rahisi na, kimsingi, bure

587
00:27:36,170 --> 00:27:36,970
siku hizi.

588
00:27:36,970 --> 00:27:40,410
>> Hivyo muda mrefu hadithi fupi, ajabu
nzuri wazo, haki?

589
00:27:40,410 --> 00:27:44,620
Miaka iliyopita, hii ilikuwa mwanzo
mtandao, kuwezesha mtandao wa

590
00:27:44,620 --> 00:27:46,330
viungo kati ya rasilimali.

591
00:27:46,330 --> 00:27:49,520
Lakini hivyo haraka, inaweza kuwa
kutumika kwa ajili ya mgonjwa.

592
00:27:49,520 --> 00:27:54,100
Na barua pepe, inatosha kusema, hizi
siku, kuwa HTML iliyoingia ndani.

593
00:27:54,100 --> 00:27:55,410
>> Vizuri, basi mimi tu jambo moja nyingine.

594
00:27:55,410 --> 00:27:58,640
Na tutaweza kuahirisha kwa kiasi kikubwa na sehemu katika
tatizo kuweka saba kwa kuruhusu

595
00:27:58,640 --> 00:28:00,000
kuchunguza maelezo.

596
00:28:00,000 --> 00:28:01,990
Lakini napenda kwenda mbele na
kufanya mambo kadhaa hapa.

597
00:28:01,990 --> 00:28:04,840
Mimi nina kwenda katika na kutangaza
kile kinachoitwa div, au

598
00:28:04,840 --> 00:28:06,080
mgawanyiko, ya ukurasa.

599
00:28:06,080 --> 00:28:07,770
Hebu karibu kwamba tag div.

600
00:28:07,770 --> 00:28:11,460
>> Na mimi nina kwenda kusema hadi
hapa juu ya ukurasa.

601
00:28:11,460 --> 00:28:14,940
Na kisha chini ya hii, mimi nina kwenda kufanya
kitu kama div mwingine, karibu hii

602
00:28:14,940 --> 00:28:17,800
tag, na kufanya chini ya ukurasa.

603
00:28:17,800 --> 00:28:18,840
Na hebu kuokoa yake.

604
00:28:18,840 --> 00:28:21,040
>> Hivyo sasa hebu kwenda nyuma ya faili yangu.

605
00:28:21,040 --> 00:28:22,120
Sana aghali.

606
00:28:22,120 --> 00:28:25,520
Lakini nini mgawanyiko ni kutumika kwa ajili ya,
chini ya Hood, ni kweli

607
00:28:25,520 --> 00:28:26,920
nzuri ya kimuundo kipengele.

608
00:28:26,920 --> 00:28:30,300
Haina aesthetics yoyote hadi sasa kama
tunaweza kuona, chochote zaidi, inaonekana,

609
00:28:30,300 --> 00:28:31,890
kuweka mambo kwenye mistari mpya.

610
00:28:31,890 --> 00:28:36,290
>> Lakini sikia, kama kando, tu kupiga
Kuingia haina ukate katika HTML kama ni

611
00:28:36,290 --> 00:28:39,840
haina katika C. Unaweza kufikiri kwamba hiyo ni
kwenda kuweka nice big pengo kati ya

612
00:28:39,840 --> 00:28:41,300
juu na chini ya ukurasa.

613
00:28:41,300 --> 00:28:43,420
Lakini ni kupuuzwa.

614
00:28:43,420 --> 00:28:48,040
Nafasi nyeupe kimsingi ni kupuuzwa katika
mtandao kurasa nyingine kuliko ya kwanza sana

615
00:28:48,040 --> 00:28:51,530
nafasi bar tabia, au kurudi carriage,
kwamba wewe hit kwenye keyboard.

616
00:28:51,530 --> 00:28:55,370
Kama unataka zaidi line mapumziko, wewe
kuwa na bayana ni wewe mwenyewe.

617
00:28:55,370 --> 00:28:59,080
>> Hivyo nina kwenda kufanya mambo kadhaa
hapa kuonyesha nini kinaendelea.

618
00:28:59,080 --> 00:29:02,700
Mimi nina kwenda kuongeza sifa kwamba
lipo Na tena, njia ya kujifunza

619
00:29:02,700 --> 00:29:07,110
nini sifa zipo, nini vitambulisho zipo,
kweli, ni online rejea.

620
00:29:07,110 --> 00:29:09,750
HTML ni aina ya lugha - ni
si lugha ya programu.

621
00:29:09,750 --> 00:29:12,460
Ni lugha ghafi - kwamba baada ya
nzuri ya nusu saa, labda, saa na

622
00:29:12,460 --> 00:29:15,930
, itabidi kufahamu kwa hakika, wengi
uwezekano, wazo msingi.

623
00:29:15,930 --> 00:29:20,350
Na kisha tafuta Google mbali ni kila
vitambulisho inawezekana kwamba unaweza kuwa na

624
00:29:20,350 --> 00:29:21,170
nia in

625
00:29:21,170 --> 00:29:24,290
Na kwa spec, kwamba ni kabisa
kuwakaribisha na moyo hapa.

626
00:29:24,290 --> 00:29:26,120
>> Hivyo sasa napenda kwenda mbele na
kufanya kitu kama hiki.

627
00:29:26,120 --> 00:29:28,690
Background-rangi.

628
00:29:28,690 --> 00:29:32,060
Na sasa, mimi naenda kufanya kitu
kama nyekundu, semicolon.

629
00:29:32,060 --> 00:29:33,970
Na unaweza kufanya hivyo katika
chache njia tofauti.

630
00:29:33,970 --> 00:29:36,770
Mimi nina aina tu ya kuandika ni kama super
wazi iwezekanavyo.

631
00:29:36,770 --> 00:29:41,960
>> Lakini zinageuka kuwa thamani hii hapa ni
kile kinachoitwa CSS, kuachia Sinema

632
00:29:41,960 --> 00:29:43,700
Shuka, ambayo ni mwingine
Lugha kabisa.

633
00:29:43,700 --> 00:29:46,770
CSS ana kitu cha kufanya na
kufungua vitambulisho na vitambulisho karibu.

634
00:29:46,770 --> 00:29:48,230
Ina nini na mali.

635
00:29:48,230 --> 00:29:52,660
>> Na mali ni muhimu tu thamani
jozi, ambayo ina maana ya baadhi ya neno,

636
00:29:52,660 --> 00:29:54,680
koloni, na kisha baadhi ya neno mmoja.

637
00:29:54,680 --> 00:29:57,940
Na kama una ndio nyingi, au tu
moja hapa, unaweza mwisho ni pamoja na

638
00:29:57,940 --> 00:29:59,390
semicolon, tu kwa uwazi.

639
00:29:59,390 --> 00:30:01,370
Lakini hiyo, pia, itakuwa kazi hapa.

640
00:30:01,370 --> 00:30:02,500
>> Sasa nini hii kwenda kufanya?

641
00:30:02,500 --> 00:30:03,610
Pengine unaweza nadhani.

642
00:30:03,610 --> 00:30:05,930
Hebu kwenda mbele na Reload ukurasa huu.

643
00:30:05,930 --> 00:30:07,300
Na sasa ni kweli kuja pamoja.

644
00:30:07,300 --> 00:30:09,150
Hivyo juu ya ukurasa wangu ni nyekundu.

645
00:30:09,150 --> 00:30:12,380
Lakini nini muhimu hapa ni kwamba, mimi zilizotajwa
mapema, div kwamba anatoa

646
00:30:12,380 --> 00:30:13,220
mgawanyo wa ukurasa.

647
00:30:13,220 --> 00:30:14,410
Na kwamba ni kweli nini anafanya.

648
00:30:14,410 --> 00:30:17,920
Kimsingi mgawanyiko ndani ya ukurasa
Mstatili kwamba unaweza kisha

649
00:30:17,920 --> 00:30:18,720
kuendesha.

650
00:30:18,720 --> 00:30:22,330
>> Na hii dhana ya mistatili ni aina ya
kulazimisha katika kwamba, kama unafikiri ya

651
00:30:22,330 --> 00:30:26,410
yoyote zaidi tovuti, kuna pengine
baadhi ya muundo na hiyo.

652
00:30:26,410 --> 00:30:29,620
Zaidi ya wewe kuwa pengine kuonekana mara chache
Mzee wa Facebook ikiwa umeingia

653
00:30:29,620 --> 00:30:30,440
katika muda wote.

654
00:30:30,440 --> 00:30:33,920
>> Lakini juu ya nyumba ukurasa wa Facebook, kuna
baadhi ya aina ya div pamoja juu.

655
00:30:33,920 --> 00:30:36,140
Na inaweza kuwa kama rahisi
kama div moja, lakini kuna

656
00:30:36,140 --> 00:30:37,560
mstatili mkoa huko.

657
00:30:37,560 --> 00:30:40,290
wengine wa ukurasa ni kama
div kubwa, kama kiasi

658
00:30:40,290 --> 00:30:41,910
kubwa mstatili kanda.

659
00:30:41,910 --> 00:30:44,540
Hivyo muda mrefu hadithi fupi, tu kwa kuwa na
hizi kidogo ujenzi wa vitalu,

660
00:30:44,540 --> 00:30:49,250
uwezo wa mambo mfano kama mistatili,
kama upana au mwembamba, unaweza pia

661
00:30:49,250 --> 00:30:53,680
kufanya uwezekano wa nguzo, utapata
kuweka kurasa, kwa kweli, hata hivyo

662
00:30:53,680 --> 00:30:54,100
ungependa.

663
00:30:54,100 --> 00:30:56,170
Sisi ni kweli tu scratching
uso hapa.

664
00:30:56,170 --> 00:30:59,820
>> Hakika, kama mimi kufanya nyingine moja moja,
napenda kwenda mbele na kufanya style,

665
00:30:59,820 --> 00:31:05,410
background-rangi, tutaweza kufanya kitu
kama rangi ya bluu, quotes karibu.

666
00:31:05,410 --> 00:31:06,620
Hebu Reload hii.

667
00:31:06,620 --> 00:31:08,260
Hivyo sasa ni kupata hata uglier.

668
00:31:08,260 --> 00:31:11,520
Lakini sasa siwezi aina ya kuonyesha mbali
P yangu kuweka ujuzi tano, sawa?

669
00:31:11,520 --> 00:31:12,690
Nyekundu.

670
00:31:12,690 --> 00:31:15,640
Inanikumbusha RGB, Red
Kijani Blue triples.

671
00:31:15,640 --> 00:31:19,330
Naam, ni zamu nje katika programu ya mtandao,
au mtandao wa kubuni, ambayo ni hii, tumekuwa

672
00:31:19,330 --> 00:31:21,650
bado iliyowekwa kitu
per se, unaweza kweli

673
00:31:21,650 --> 00:31:22,880
na kanuni hexadesimoli.

674
00:31:22,880 --> 00:31:26,480
Hivyo kitu kitu, kitu
kitu, kitu kitu.

675
00:31:26,480 --> 00:31:30,650
Hivyo unaweza kuwa na sita hexadesimoli
wahusika, au tatu, katika baadhi ya kesi,

676
00:31:30,650 --> 00:31:33,480
na kila moja ya alama wale swali
ina kuwa maadili hexadesimoli,

677
00:31:33,480 --> 00:31:34,985
sifuri kupitia f.

678
00:31:34,985 --> 00:31:41,000
>> Kama mimi nataka kuwa na mengi ya nyekundu, na
hakuna kijani, na hakuna bluu, nini

679
00:31:41,000 --> 00:31:43,740
kinyume cha sifuri wakati wa kutumia hex?

680
00:31:43,740 --> 00:31:44,480
Ni f.

681
00:31:44,480 --> 00:31:51,130
Hivyo naweza kufanya ff, sifuri sifuri, sifuri sifuri,
kuokoa hii, na sasa kuja chini hapa.

682
00:31:51,130 --> 00:31:52,700
Na mimi si kweli kuona mabadiliko.

683
00:31:52,700 --> 00:31:56,230
Hivyo quote unquote "nyekundu" ni inaonekana
sawa kwa ajili ya nyekundu wote,

684
00:31:56,230 --> 00:31:57,610
hakuna kijani, hakuna rangi ya bluu.

685
00:31:57,610 --> 00:31:59,960
Wakati huo huo, hebu makusudi kubadili
moja hii kuwa ni kitu

686
00:31:59,960 --> 00:32:01,210
random, kama ABCDF.

687
00:32:01,210 --> 00:32:03,790

688
00:32:03,790 --> 00:32:05,860
>> Hebu angalia nini kuwa ni.

689
00:32:05,860 --> 00:32:08,530
Ni bluu kweli nzuri,
kweli, mtoto bluu.

690
00:32:08,530 --> 00:32:11,820
Haki wote, hivyo hizi ni baadhi tu ya sasa
kiasi fulani random michanganyiko ya

691
00:32:11,820 --> 00:32:12,210
wahusika.

692
00:32:12,210 --> 00:32:13,410
Hivyo sisi si kupata yakidhoofishwa katika hapa.

693
00:32:13,410 --> 00:32:15,930
Lakini tena, hii anaongea na usahihi
kuwa unaweza kuanza

694
00:32:15,930 --> 00:32:19,090
kuomba - hata kama wewe ni kuzidiwa sana
na aesthetics.

695
00:32:19,090 --> 00:32:21,750
Kwa kweli, kama kweli unataka kuwa
hisia, napenda kwenda mbele na mabadiliko ya

696
00:32:21,750 --> 00:32:23,500
ukubwa wa herufi, kwa mfano.

697
00:32:23,500 --> 00:32:25,960
Na taarifa ya semicolon, ambayo
ni muhimu huko.

698
00:32:25,960 --> 00:32:29,570
>> Fonti, tunaweza kuwa na ujinga tu
hapa, 96 uhakika.

699
00:32:29,570 --> 00:32:31,280
Ila hiyo.

700
00:32:31,280 --> 00:32:33,670
Wow, kwamba ni kubwa fonti.

701
00:32:33,670 --> 00:32:35,490
Haki wote, hivyo ni rahisi sana.

702
00:32:35,490 --> 00:32:38,260
Na kweli, wewe ni kimsingi kuona
sana kwanza mtandao ukurasa mimi alifanya

703
00:32:38,260 --> 00:32:40,060
miaka iliyopita, wakati mimi kwanza
kujifunza mambo haya.

704
00:32:40,060 --> 00:32:42,190
Ni rahisi sana kufanya sana
hideous mambo haraka.

705
00:32:42,190 --> 00:32:46,115
>> Na kama wewe ni ukoo na Wayback
Mashine ya juu ya archive.org, wewe

706
00:32:46,115 --> 00:32:48,210
unaweza kupata wangu wote hideous
undergrad kurasa za mtandao.

707
00:32:48,210 --> 00:32:50,090
Mmoja alikuwa KERMIT Frog mbele.

708
00:32:50,090 --> 00:32:53,150
Nilikwenda kwa awamu ambapo nilifikiri
ilikuwa ni baridi kuchukua historia ya

709
00:32:53,150 --> 00:32:56,320
pazia nyekundu, wakati mimi kujifunza jinsi ya
unaweza tile images tena, na tena, na

710
00:32:56,320 --> 00:32:59,540
tena, kujaza ukurasa na
kubwa tacky nyekundu pazia.

711
00:32:59,540 --> 00:33:03,120
Na kisha, juu ya hii, ilikuwa icon
kwamba alikuwa na bonyeza kuingia nyumbani kwangu

712
00:33:03,120 --> 00:33:04,960
ukurasa kwa sababu hiyo ilikuwa
sana katika Vogue.

713
00:33:04,960 --> 00:33:08,870
>> Na kisha mpango yangu ya kwanza mimi milele aliandika
hakuwa katika PHP, lakini kwa lugha

714
00:33:08,870 --> 00:33:12,260
kuitwa Pearl, aliandika kitabu mgeni, ambayo
ni jambo la kweli baridi kwamba

715
00:33:12,260 --> 00:33:14,250
mengi ya watu wanatarajia
kuwa juu ya ukurasa wa nyumbani.

716
00:33:14,250 --> 00:33:17,510
Baada ya kupata na ukurasa, wanataka
saini katika, na kusema wewe ni nani,

717
00:33:17,510 --> 00:33:18,720
na kwa nini uko pale.

718
00:33:18,720 --> 00:33:21,320
Hii ni miaka ya 1990 style mtandao kubuni.

719
00:33:21,320 --> 00:33:24,130
>> Lakini siku hizi, hakika, tumekuwa
kuja mengi mbali zaidi.

720
00:33:24,130 --> 00:33:27,560
Na utaona, katika sehemu ya, na hata
katika tatizo kuweka saba, na

721
00:33:27,560 --> 00:33:31,570
leveraging maktaba siku hizi,
hivyo ni rahisi kufanya

722
00:33:31,570 --> 00:33:33,400
prettier mambo haraka.

723
00:33:33,400 --> 00:33:36,550
Kweli hapa, tuko tu scratching
uso wa nini unaweza kufanya

724
00:33:36,550 --> 00:33:37,400
stylistically.

725
00:33:37,400 --> 00:33:41,660
>> Na kwa kweli, tayari, napenda kusisitiza
kwamba hii ni tayari kupata mbaya, si

726
00:33:41,660 --> 00:33:46,030
tu aesthetically, lakini katika suala
ya mtindo wa kificho yangu, au

727
00:33:46,030 --> 00:33:47,260
kubuni ya maadili yangu.

728
00:33:47,260 --> 00:33:52,350
Mimi sasa comingled HTML, ambayo
ni rangi ya kijani vitambulisho wazi pale, pamoja na

729
00:33:52,350 --> 00:33:55,160
CSS mali, ambayo
kabisa legit.

730
00:33:55,160 --> 00:33:57,200
Hii ni kweli ambapo lugha
alikuwa na asili yake.

731
00:33:57,200 --> 00:34:01,030
>> Lakini kwa maslahi ya kubuni safi,
kiasi kama sisi ilianza factoring mambo

732
00:34:01,030 --> 00:34:05,370
nje kutoka C files ndani. files h, basi
mimi kweli mazoezi ya aina hiyo ya

733
00:34:05,370 --> 00:34:07,990
kanuni na kuanza kufanya
hii badala yake.

734
00:34:07,990 --> 00:34:13,280
Napenda kuweka tag style up hapa, ambayo
pia lipo katika HTML, na napenda

735
00:34:13,280 --> 00:34:15,330
bayana zifuatazo.

736
00:34:15,330 --> 00:34:16,360
Hebu kufuta hii.

737
00:34:16,360 --> 00:34:18,110
Background Michezo ni kwenda kuwa nyekundu.

738
00:34:18,110 --> 00:34:19,800
Mimi naenda kufuta kabisa.

739
00:34:19,800 --> 00:34:22,580
Mimi nina kwenda kujikwamua style
sifa, na mimi nina kwenda kwa kipekee

740
00:34:22,580 --> 00:34:24,620
kutambua hii div na neno -

741
00:34:24,620 --> 00:34:28,750
kiholela, lakini sababu halali, kunukuu
unquote "juu." Na id ni maalum

742
00:34:28,750 --> 00:34:32,530
sifa ya kipekee amefafanua
fulani HTML kipengele

743
00:34:32,530 --> 00:34:33,850
kama kuwa na kwamba id.

744
00:34:33,850 --> 00:34:37,969
>> Kama mimi sasa wanataka stylized yake, juu hapa nchini
mkuu wa ukurasa wangu, ndani ya

745
00:34:37,969 --> 00:34:41,730
style tag, taarifa kwamba
Naweza kufanya juu hash.

746
00:34:41,730 --> 00:34:45,300
Na kisha naweza kuweka michache ya curly
braces, kukumbusha ya C, na kisha basi

747
00:34:45,300 --> 00:34:47,130
mimi kuweka katika stylization kwamba.

748
00:34:47,130 --> 00:34:49,929
Na napenda kwenda mbele hapa na wanatarajia
ambapo mimi nina kwenda kwa hili.

749
00:34:49,929 --> 00:34:53,380
Napenda pia kujenga moja
kwa div chini.

750
00:34:53,380 --> 00:34:58,010
Hebu kunyakua kanuni hii hideous kutoka chini
hapa, kuiweka katika hapa, na mimi itakuwa

751
00:34:58,010 --> 00:35:00,770
zaidi kidogo anal sasa na stylized ni
na tu kuweka mambo yao wenyewe

752
00:35:00,770 --> 00:35:02,540
line, na kuishia kwa semicolons.

753
00:35:02,540 --> 00:35:04,430
Hebu kujikwamua tag style.

754
00:35:04,430 --> 00:35:05,320
>> Lakini nina kufanyika bado.

755
00:35:05,320 --> 00:35:07,406
Mimi haja ya kufanya jambo moja nyingine.

756
00:35:07,406 --> 00:35:10,070
Yeah, id sawa quote unquote, "chini,"
au chochote id nataka

757
00:35:10,070 --> 00:35:11,740
kutoa kwamba kipengele.

758
00:35:11,740 --> 00:35:13,420
Sasa, basi mimi kwenda nyuma zaidi ya hapa.

759
00:35:13,420 --> 00:35:14,360
Na hii ni za mauaji.

760
00:35:14,360 --> 00:35:15,805
Siwezi kushughulika na kumweka 96.

761
00:35:15,805 --> 00:35:16,960
Hebu kufanya 24 uhakika.

762
00:35:16,960 --> 00:35:18,320
Au unaweza kuwa sahihi zaidi.

763
00:35:18,320 --> 00:35:21,800
Unaweza kweli kutumia piseli, udhibiti, hivyo
kwamba kwa kweli kupata finer nafaka

764
00:35:21,800 --> 00:35:23,220
kudhibiti juu ya ukurasa wako.

765
00:35:23,220 --> 00:35:26,860
>> Kama kando, kwamba si lazima
jambo bora kama watumiaji, kwa ajili ya

766
00:35:26,860 --> 00:35:29,650
upatikanaji sababu, wanataka
kuwa na uwezo wa kuongeza ukubwa.

767
00:35:29,650 --> 00:35:32,650
Hivyo kutambua kwamba kuna njia ya kufanya
mambo ambayo si lazima

768
00:35:32,650 --> 00:35:34,230
ngumu ya kanuni ya kila kitu.

769
00:35:34,230 --> 00:35:37,220
>> Haki wote, hivyo ni kubwa zaidi, 24 uhakika,
kuliko chochote default ni.

770
00:35:37,220 --> 00:35:38,630
Lakini sasa ni safi kidogo.

771
00:35:38,630 --> 00:35:40,230
Na napenda kuchukua hatua hii moja zaidi.

772
00:35:40,230 --> 00:35:47,220
Tu kama wazo la header files,
taarifa tuko hatua moja karibu na kwamba.

773
00:35:47,220 --> 00:35:52,000
Nina nje zitawekwa, lakini bado kushoto,
ndani ya ukurasa wangu, wale sheria CSS.

774
00:35:52,000 --> 00:35:56,200
Kwa nini huenda nataka kuchukua hatua hii moja
zaidi, kuondoa kabisa, na

775
00:35:56,200 --> 00:35:59,860
kuiweka katika faili tofauti?

776
00:35:59,860 --> 00:36:01,070
>> Hivyo siwezi kutumia tena yake, sawa?

777
00:36:01,070 --> 00:36:03,155
Hii ni aina tu ya Intuition
hivi sasa.

778
00:36:03,155 --> 00:36:06,340
Kabla, mimi alidai kwamba ilikuwa tu
kupata mbaya kuwa mtindo

779
00:36:06,340 --> 00:36:08,480
sifa ndani ya
divs wenyewe.

780
00:36:08,480 --> 00:36:09,750
Lakini aina tu ya kufikiri kwamba kupitia.

781
00:36:09,750 --> 00:36:13,560
Kama ukurasa wako anapata tena na tena, kama
wewe ni kuweka hapa, na hapa, na

782
00:36:13,560 --> 00:36:18,350
hapa, na hapa, yote haya tofauti
rangi, na ukubwa wa herufi, na wengine vile

783
00:36:18,350 --> 00:36:22,550
sifa, ukurasa wako ni kwa haraka sana
kwenda kuwa magumu kwa ajili yenu.

784
00:36:22,550 --> 00:36:24,570
>> Kama mtu anakuja juu yako na
anasema, oh, unajua nini?

785
00:36:24,570 --> 00:36:28,070
Ningependa kwa kweli kama kubadilisha ukubwa font
na mbili pointi ziada,

786
00:36:28,070 --> 00:36:31,275
wanaweza kuwa na kwenda na kupata na kuchukua nafasi ya
idadi kubwa ya mstari wa kanuni.

787
00:36:31,275 --> 00:36:35,170
Ni zaidi ya kulazimisha kuvifanya
wote aesthetics vile hapa.

788
00:36:35,170 --> 00:36:38,850
Lakini kama wewe Ningependa kutumia tena wale
aesthetics katika kurasa nyingi za mtandao, kila

789
00:36:38,850 --> 00:36:41,100
zaidi ya kulazimisha, kwa ajili ya
mfano, kuunda faili

790
00:36:41,100 --> 00:36:45,290
kuitwa na yaliyomo hizo.

791
00:36:45,290 --> 00:36:46,680
>> Na napenda kufanya hili.

792
00:36:46,680 --> 00:36:51,150

793
00:36:51,150 --> 00:36:51,920
Ila hii faili.

794
00:36:51,920 --> 00:36:55,580
Nasema styles.css, holela,
lakini kawaida.

795
00:36:55,580 --> 00:36:58,770
Mimi itabidi kuweka katika nyumba Yohana Harvard
Directory sasa kwa unyenyekevu.

796
00:36:58,770 --> 00:37:03,880
Na nini siwezi kufanya katika mtandao ukurasa wangu ni kupata
kuondoa ya tag style kabisa,

797
00:37:03,880 --> 00:37:08,270
na kiasi fulani unintuitively, kutumia kiungo
tag, ambayo haina kukupa kiungo katika

798
00:37:08,270 --> 00:37:13,140
hyperlink, hisia clickable, lakini
ambapo mimi kusema kiungo, href sawa

799
00:37:13,140 --> 00:37:15,120
styles.css.

800
00:37:15,120 --> 00:37:20,050
Na uhusiano kwamba hii kipengele
imekuwa na ukurasa wa mtandao ni kumtumikia kama

801
00:37:20,050 --> 00:37:21,280
style yake ya karatasi.

802
00:37:21,280 --> 00:37:22,670
>> Hivyo ni jinsi gani mimi kujua hili?

803
00:37:22,670 --> 00:37:25,950
Moja, wewe tu kusoma mwongozo,
au wewe Google kote, na wewe

804
00:37:25,950 --> 00:37:27,000
kuangalia rasilimali mbalimbali.

805
00:37:27,000 --> 00:37:30,520
I mean, kwamba kweli ni jinsi gani ya kuchukua
mbinu kama hii, na, kwa kuzingatia

806
00:37:30,520 --> 00:37:34,720
na hili wazo la kufundisha mwenyewe mpya
lugha, tena, utapata kwamba

807
00:37:34,720 --> 00:37:38,830
kuna tu idadi finite ya mambo
kwa lugha yoyote kwamba, mara moja kupata

808
00:37:38,830 --> 00:37:41,310
yao, utapata kwamba anapata
kwa kasi na kasi ya kuandika.

809
00:37:41,310 --> 00:37:44,180
Hakika, kujifunza programu mpya
lugha ni hivyo kwa kasi zaidi kuliko mpya

810
00:37:44,180 --> 00:37:47,380
amesema lugha kwa sababu mambo haya
ni ndogo sana na mengi zaidi

811
00:37:47,380 --> 00:37:48,820
just defined.

812
00:37:48,820 --> 00:37:51,590
>> Lakini nimepata yalionyesha kidogo
ya makosa hapa.

813
00:37:51,590 --> 00:37:57,750
Mbona nilieleza hii
mbele kufyeka hapa?

814
00:37:57,750 --> 00:37:59,420
Kwa sababu mimi na kuifunga tag.

815
00:37:59,420 --> 00:38:00,530
Mimi lazima karibu tag.

816
00:38:00,530 --> 00:38:02,750
Na utasikia kupata rasilimali wasiohesabika
online kwamba hawana

817
00:38:02,750 --> 00:38:04,080
lazima vitambulisho karibu.

818
00:38:04,080 --> 00:38:08,770
Na realistically, siyo madhubuti
muhimu kwa ajili ya kiufundi na kuna

819
00:38:08,770 --> 00:38:11,950
sababu ya ukweli, browsers ni tu
haki wavumilivu wa makosa katika mtandao

820
00:38:11,950 --> 00:38:14,360
kurasa, kwa bora au mbaya,
lakini zaidi ya mbaya.

821
00:38:14,360 --> 00:38:18,830
>> Hivyo hii hapa ni njia tu safi ya
akisema kitu kijinga kama hii,

822
00:38:18,830 --> 00:38:22,330
ambapo kama unataka kufungua tag kiungo
lakini karibu, kuna kweli hakuna dhana

823
00:38:22,330 --> 00:38:23,720
ya maudhui kwa tag kiungo.

824
00:38:23,720 --> 00:38:26,000
Ni njia tu kupakia hii
kuwasilisha na kuiweka hapa.

825
00:38:26,000 --> 00:38:30,610
Ni kama ni pamoja na mkali katika C. Unaweza
kufungua na kufunga tag wote kwa mara moja

826
00:38:30,610 --> 00:38:31,660
ndani tag huo.

827
00:38:31,660 --> 00:38:33,520
Na kuna wengine mifano ya hili.

828
00:38:33,520 --> 00:38:37,280
Hii si njia ya kufanya hili, lakini
tag br, kwa ajili ya mapumziko ya mstari, kama mimi

829
00:38:37,280 --> 00:38:41,780
kweli alitaka kufanikisha kile nilikuwa
kujaribu kabla kwa kupiga Enter, kama

830
00:38:41,780 --> 00:38:45,380
Mimi kupanga kusema line mapumziko, mstari wa mapumziko,
line mapumziko, kuvunja line, na

831
00:38:45,380 --> 00:38:49,100
kisha Reload ukurasa huu, sasa wewe utakuwa taarifa
kwamba chini ya ukurasa ni,

832
00:38:49,100 --> 00:38:51,940
kweli kweli, mbali zaidi chini katika
chini ya ukurasa.

833
00:38:51,940 --> 00:38:55,840
Lakini hata ambayo yanaweza kufanyika zaidi
cleanly na CSS, na kwa kishindo,

834
00:38:55,840 --> 00:38:58,120
na kwa aesthetic wengine vile
mbinu.

835
00:38:58,120 --> 00:38:59,940
>> Hivyo kwa sasa, takeaways ni hii.

836
00:38:59,940 --> 00:39:02,320
Katika HTML, tuna hizi
mambo kuitwa vitambulisho.

837
00:39:02,320 --> 00:39:04,830
Katika CSS, tuna mambo haya
kuitwa mali.

838
00:39:04,830 --> 00:39:08,700
Tunaweza comingle lugha hizi mbili,
aidha kwa kutumia sifa style,

839
00:39:08,700 --> 00:39:14,240
au tag mtindo, au bora bado, factoring
ni nje kabisa, kama sisi kufanya

840
00:39:14,240 --> 00:39:17,270
katika tatizo kuweka 7.

841
00:39:17,270 --> 00:39:23,820
Maswali, basi, kuhusu
dhana ya misingi hapa?

842
00:39:23,820 --> 00:39:24,740
>> Watazamaji: Nina swali.

843
00:39:24,740 --> 00:39:25,630
>> SPIKA 1: Oh, pole.

844
00:39:25,630 --> 00:39:28,880
>> Watazamaji: Kwa nini si ni rangi -

845
00:39:28,880 --> 00:39:31,410
>> SPIKA 1: Oh, katika tabo nyingine?

846
00:39:31,410 --> 00:39:32,232
Hii hapa?

847
00:39:32,232 --> 00:39:33,482
>> Watazamaji: Hapana, ni kama -

848
00:39:33,482 --> 00:39:35,330

849
00:39:35,330 --> 00:39:39,480
>> SPIKA 1: Oh, hiyo ni kwa sababu
Mimi mara kuwa sloppy.

850
00:39:39,480 --> 00:39:41,350
Mimi kuweka faili katika mahali sahihi.

851
00:39:41,350 --> 00:39:47,840
Hivyo kama mimi kweli kuiweka hapa, na mimi
chmod hivyo, wote + r kwa styles.css, na

852
00:39:47,840 --> 00:39:52,050
sasa upya ukurasa, sasa sisi
kupata stylization nyuma.

853
00:39:52,050 --> 00:39:54,530
Na kwa sababu ukubwa font ni
tofauti, hatuoni kabisa kama vile

854
00:39:54,530 --> 00:39:55,010
nyeupe nafasi.

855
00:39:55,010 --> 00:39:58,240
Sisi badala kuona nini
default ni badala yake.

856
00:39:58,240 --> 00:40:00,050
Nzuri swali.

857
00:40:00,050 --> 00:40:00,846
Ndiyo?

858
00:40:00,846 --> 00:40:02,630
>> Watazamaji: Kwa nini ni kiungo
tag ndani ya kichwa?

859
00:40:02,630 --> 00:40:06,270
>> SPIKA 1: Kwa nini ni viungo
tag ndani ya kichwa -

860
00:40:06,270 --> 00:40:07,650
short jibu, kwa sababu tu.

861
00:40:07,650 --> 00:40:08,930
Hiyo ni nini iliamuliwa.

862
00:40:08,930 --> 00:40:10,720
Hiyo ambapo vitambulisho kiungo kwenda wakati
una nini wito

863
00:40:10,720 --> 00:40:13,650
nje style karatasi.

864
00:40:13,650 --> 00:40:16,430
Maswali mengine?

865
00:40:16,430 --> 00:40:17,770
>> Haki zote, vizuri hebu kufanya hili.

866
00:40:17,770 --> 00:40:20,500
Tuna furaha sana mbele yetu leo.

867
00:40:20,500 --> 00:40:22,480
Hiyo tu scratching
uso wa CSS.

868
00:40:22,480 --> 00:40:23,010
Hebu kufanya hili.

869
00:40:23,010 --> 00:40:25,980
Hebu kuchukua dakika tano kuvunja hapa
kwa sababu, kwa email yangu, hebu kutundika katika

870
00:40:25,980 --> 00:40:27,200
huko mpaka 2:30-ish leo.

871
00:40:27,200 --> 00:40:28,540
Lakini kama wewe kufanya na
kuondoka, hiyo faini.

872
00:40:28,540 --> 00:40:30,380
Lakini tutaweza kusonga mbele baada ya
mapumziko ya dakika tano.

873
00:40:30,380 --> 00:40:35,930
Na tutaweza kujifunza kitu kidogo
kuhusu PHP, MySQL, na zaidi.

874
00:40:35,930 --> 00:40:44,520
>> Haki ya wote, hivyo hebu jaribu, sasa, kufunga
chache ya mawazo haya pamoja na kufanya,

875
00:40:44,520 --> 00:40:46,180
kusema, tafuta yetu wenyewe injini.

876
00:40:46,180 --> 00:40:48,570
Mimi niliona, badala ajabu,
zifuatazo.

877
00:40:48,570 --> 00:40:52,610
Wakati wewe ni katika Google.com, wewe ni
kawaida katika URL kama huu hapa

878
00:40:52,610 --> 00:40:54,870
na kitu chochote baada ya dot com.

879
00:40:54,870 --> 00:40:59,760
Lakini kama mimi kutafuta kitu kijinga kama
paka, na hit Enter, tutaweza kupata - si

880
00:40:59,760 --> 00:41:01,300
kijinga, lakini unajua.

881
00:41:01,300 --> 00:41:05,410
>> OK, hivyo taarifa, juu ya ukurasa,
sasa, URL ina, bila shaka, iliyopita.

882
00:41:05,410 --> 00:41:07,190
Na hii si kitu
mpya kwa yeyote kati yetu.

883
00:41:07,190 --> 00:41:09,290
Bonyeza viungo na mambo
kinatokea kwenye mtandao.

884
00:41:09,290 --> 00:41:11,420
Lakini nini kuvutia hapa
ni yafuatayo.

885
00:41:11,420 --> 00:41:14,500
Kuna mengi yote ya clutter, lakini basi
mimi kutupa mbali mambo kwamba mimi si

886
00:41:14,500 --> 00:41:16,600
kabisa kuelewa au hana
kweli kuangalia husika.

887
00:41:16,600 --> 00:41:18,490
>> Hebu kujikwamua hii.

888
00:41:18,490 --> 00:41:20,030
Hebu kujikwamua hii.

889
00:41:20,030 --> 00:41:22,630
Na napenda tu kujikwamua
ya yote haya.

890
00:41:22,630 --> 00:41:28,840
Na sasa taarifa kwamba paka ni katika URL,
ikifuatiwa na q, basi sawa

891
00:41:28,840 --> 00:41:29,710
ishara mbele yake.

892
00:41:29,710 --> 00:41:32,110
Hivyo zinageuka hii ni jinsi gani
Njia hiyo kazi linapokuja

893
00:41:32,110 --> 00:41:33,360
kwa pembejeo na mazao.

894
00:41:33,360 --> 00:41:37,510
>> Tumekuwa kwa muda mrefu kuongelea
nyeusi masanduku, haki?

895
00:41:37,510 --> 00:41:41,650
Hivyo kama hii ni kazi kutekelezwa
hapa kama sanduku nyeusi, inachukua pembejeo

896
00:41:41,650 --> 00:41:45,290
na inazalisha pato, vizuri, ina maana
ambayo wewe kutoa mchango kwa

897
00:41:45,290 --> 00:41:49,270
tovuti ni kwa njia ya, mara nyingi, ya URL wake.

898
00:41:49,270 --> 00:41:52,850
Wewe tu kuweka alama ya swali
na kisha muhimu sawa na thamani.

899
00:41:52,850 --> 00:41:56,740
Na kisha labda Ampersand, na kisha
ufunguo mwingine sawa na thamani, basi labda

900
00:41:56,740 --> 00:41:58,810
Ampersand mwingine, muhimu ni sawa na thamani.

901
00:41:58,810 --> 00:42:03,030
Kwamba ni jinsi gani kupita katika funguo na
maadili, jozi ya pembejeo.

902
00:42:03,030 --> 00:42:07,050
>> Hivyo kama mimi hit Enter sasa, nini
kuvutia kuhusu Google ni kwamba wote

903
00:42:07,050 --> 00:42:10,420
kwamba clutter mimi ilifutwa haionekani
kuwa madhubuti muhimu.

904
00:42:10,420 --> 00:42:15,120
Mimi wote wanahitaji kutuma Google ni swali
q alama sawa na paka kupata

905
00:42:15,120 --> 00:42:16,160
nyuma paka baadhi.

906
00:42:16,160 --> 00:42:20,160
Naam, maana ya kwamba, basi,
ni kama mimi kuvuta up gedit, nimeanza

907
00:42:20,160 --> 00:42:24,360
kufanya search injini yangu mwenyewe hapa
katika faili iitwayo seach0.html.

908
00:42:24,360 --> 00:42:26,750
>> Na napenda kwenda mbele na kufuta
moja zaidi line kwamba wewe

909
00:42:26,750 --> 00:42:27,910
walikuwa hawatakiwi kuona.

910
00:42:27,910 --> 00:42:31,070
Na sasa, napenda kwenda katika browser yangu mwenyewe,
hivyo si kwa Google, na kwenda

911
00:42:31,070 --> 00:42:34,900
http://localhost.

912
00:42:34,900 --> 00:42:36,220
Na kwamba kinaendelea kupata njia.

913
00:42:36,220 --> 00:42:43,240
Hivyo sisi ni kwenda na kusema kwaheri kwa
kwamba kwa sasa, hoja hii zaidi ya hapa,

914
00:42:43,240 --> 00:42:46,270
oh, sasa sisi ni kwenda na
kusema kwaheri kwa faili hilo.

915
00:42:46,270 --> 00:42:51,700
>> Wakati wowote una faili inayoitwa
index.html au index.php katika

916
00:42:51,700 --> 00:42:54,980
directory, ikiwa ni mtandao wa kompyuta
kimeundwa kwa njia hii, nini utasikia

917
00:42:54,980 --> 00:42:59,600
kuona, na msingi, ni maudhui ya kwamba
faili badala ya orodha ya

918
00:42:59,600 --> 00:43:02,330
directory, kama nilitaka hapa.

919
00:43:02,330 --> 00:43:03,750
Zaidi juu ya hili katika spec.

920
00:43:03,750 --> 00:43:04,610
Hamkuyaona kwamba.

921
00:43:04,610 --> 00:43:06,360
>> Hivyo hii ni kile Mimi kweli alitaka.

922
00:43:06,360 --> 00:43:08,810
Lakini wakati iliyopita, kulikuwa na
faili kwenye folda hii inaitwa

923
00:43:08,810 --> 00:43:11,290
index.html na index.php.

924
00:43:11,290 --> 00:43:13,380
Na hivyo mtandao wa kompyuta mara
kunionyeshea files wale.

925
00:43:13,380 --> 00:43:15,900
Badala yake, nataka saraka hii
kuorodhesha hapa.

926
00:43:15,900 --> 00:43:18,340
>> Hivyo mimi nina kwenda katika
CSS na kwenda search0.

927
00:43:18,340 --> 00:43:21,770
Na mimi kudai kwamba hii ni kwenda kuwa
mwanzo wa ushindani yangu mwenyewe

928
00:43:21,770 --> 00:43:22,490
kutafuta injini.

929
00:43:22,490 --> 00:43:27,630
Na kwa kufanya hivyo, mimi nina kwenda katika
hapa, katika CSS, na kufungua na

930
00:43:27,630 --> 00:43:30,190
gedit, tafuta 0.

931
00:43:30,190 --> 00:43:32,280
Lakini kwa bahati mbaya, kuna
si kiasi kinachoendelea hapa.

932
00:43:32,280 --> 00:43:35,690
Wote mimi ilikuwa kutumia tag viongozi, ambayo
hutokea kuitwa h1, ambayo

933
00:43:35,690 --> 00:43:38,180
kimsingi ina maana kubwa na
ujasiri, na hiyo ni yake.

934
00:43:38,180 --> 00:43:40,810
Lakini njia ambayo tunaweza
kutoa pembejeo ni kupitia haya

935
00:43:40,810 --> 00:43:42,180
mambo kuitwa fomu.

936
00:43:42,180 --> 00:43:46,040
>> Hivyo basi mimi kwenda mbele na kufungua na kufunga,
preemptively, tag fomu huko.

937
00:43:46,040 --> 00:43:48,060
Na napenda kwenda mbele na kufanya
kitu kama hiki.

938
00:43:48,060 --> 00:43:51,430
Pembejeo, aina sawa na maandishi.

939
00:43:51,430 --> 00:43:56,320
Na kisha hebu karibu tag ndani ya
mabano wenyewe.

940
00:43:56,320 --> 00:43:58,800
Sina haja ya kuanza shamba Nakala
na kuacha uwanja maandishi.

941
00:43:58,800 --> 00:44:01,080
Ni tu kwenda kwa kuwa huko au la.

942
00:44:01,080 --> 00:44:06,210
>> Na kisha chini ya kwamba, hebu kufanya
pembejeo aina sawa kuwasilisha.

943
00:44:06,210 --> 00:44:06,870
Ila hii.

944
00:44:06,870 --> 00:44:08,630
Na sasa hebu tu kufanya
sanity haraka kuangalia.

945
00:44:08,630 --> 00:44:09,820
Hebu Reload.

946
00:44:09,820 --> 00:44:10,890
>> OK, hivyo si mbaya.

947
00:44:10,890 --> 00:44:13,260
Ni si mtindo wa Google,
lakini ni pretty karibu.

948
00:44:13,260 --> 00:44:13,920
Kuna shamba maandishi.

949
00:44:13,920 --> 00:44:17,190
Siwezi aina baadhi ya mambo katika, hit Enter,
lakini hakuna kinachotokea bado.

950
00:44:17,190 --> 00:44:21,090
Na kwamba kwa sababu mimi si maalum
utekelezaji kwa ajili ya fomu hii, hivyo kusema.

951
00:44:21,090 --> 00:44:23,860
Hivyo kama mimi kwenda nyuma ya kipengele fomu,
ni zamu nje, na ninajua hii tu

952
00:44:23,860 --> 00:44:27,460
kutokana na kuwa na kusoma nyaraka, kwamba
tag fomu inachukua sifa

953
00:44:27,460 --> 00:44:31,880
kuitwa hatua ambayo ni URL
ya tovuti ambayo wewe

954
00:44:31,880 --> 00:44:34,790
unataka kutuma fomu.

955
00:44:34,790 --> 00:44:37,610
>> Mimi si kweli nadhani sisi na muda wa
kutekeleza nzima nyuma mwisho kwa

956
00:44:37,610 --> 00:44:38,570
kutafuta injini leo.

957
00:44:38,570 --> 00:44:41,900
Hivyo sisi ni kwenda tu kusema, eh,
nenda google.com tafuta /.

958
00:44:41,900 --> 00:44:43,450
Na sasa basi mimi karibu quotes yangu.

959
00:44:43,450 --> 00:44:46,070
Na napenda zaidi bayana kwamba
Njia ya kutumia ni kwenda

960
00:44:46,070 --> 00:44:47,120
kuitwa kupata.

961
00:44:47,120 --> 00:44:50,650
>> Muda mrefu hadithi fupi, kuna njia mbili, saa
uchache, kwamba unaweza kuwasilisha taarifa

962
00:44:50,650 --> 00:44:51,880
kutoka browser kwa seva.

963
00:44:51,880 --> 00:44:55,340
Moja ni kupata, na, kwa madhumuni ya leo,
kwamba tu ina maana katika URL.

964
00:44:55,340 --> 00:44:58,730
Unaweza kuona hasa alama swali,
sawa na ishara, na kwamba ampersands

965
00:44:58,730 --> 00:44:59,780
tuliona mapema.

966
00:44:59,780 --> 00:45:02,890
Au kuna njia mbadala ya kuitwa post.

967
00:45:02,890 --> 00:45:06,490
Kwa sasa, baada ya kujua kwamba ni mara nyingi hutumika
wakati unataka upload files, kama

968
00:45:06,490 --> 00:45:09,820
picha na kadhalika, au wakati unataka
kuwasilisha kadi habari, au

969
00:45:09,820 --> 00:45:13,810
nywila, kitu kwamba hana
kweli mantiki, conceptually, au

970
00:45:13,810 --> 00:45:18,020
usalama wa hekima, na kuishia katika URL ya
browser yako, ambapo kutekwa wazazi,

971
00:45:18,020 --> 00:45:21,520
au roommates, au mtu yeyote kwa kupata
kwa kompyuta yako ili kuona.

972
00:45:21,520 --> 00:45:23,110
>> Basi hebu ila hapa.

973
00:45:23,110 --> 00:45:24,480
Na mimi haja ya kufanya jambo moja nyingine.

974
00:45:24,480 --> 00:45:27,250
Haina inatosha tu
kusema nipe shamba maandishi.

975
00:45:27,250 --> 00:45:29,850
Mimi na kutoa kwamba shamba ya
thamani ya jina.

976
00:45:29,850 --> 00:45:34,500
Hivyo basi mimi kukopa uchaguzi ya Google ya
majina, q, na bayana kwamba pili

977
00:45:34,500 --> 00:45:38,150
wanampa Mimi si kweli huduma kuhusu
jina ya kifungo Submit.

978
00:45:38,150 --> 00:45:40,890
Kila najali ni kuwasilisha
nini mtumiaji aina in

979
00:45:40,890 --> 00:45:41,940
>> Na sasa hii ni aina ya mbaya.

980
00:45:41,940 --> 00:45:42,820
Ni tu anasema kuwasilisha.

981
00:45:42,820 --> 00:45:46,350
Ni zamu nje, na najua hii kutoka
nyaraka, naweza kusema kweli

982
00:45:46,350 --> 00:45:51,710
thamani sawa quote unquote "cs50
SEACH, "karibu kunukuu.

983
00:45:51,710 --> 00:45:53,030
Basi hebu Reload tena.

984
00:45:53,030 --> 00:45:57,020
Hivyo mimi kuendelea kupiga amri-R, au
Kudhibiti-R kwenye keyboard yangu Reload.

985
00:45:57,020 --> 00:45:58,605
>> Sasa tuna zaidi ya kuvutia
kutafuta injini.

986
00:45:58,605 --> 00:46:00,340
Haina kabisa kuangalia kama
Google bado, ingawa.

987
00:46:00,340 --> 00:46:04,100
Basi hebu kwenda mbele katika hapa na
kufanya kidogo line mapumziko.

988
00:46:04,100 --> 00:46:06,066
>> OK, hivyo sasa tuna Google.

989
00:46:06,066 --> 00:46:08,260
Sisi kwa kweli kufanya kuwa karibu Google.

990
00:46:08,260 --> 00:46:10,460
Hivyo sasa nini kitatokea?

991
00:46:10,460 --> 00:46:12,220
Mimi naenda aina katika kitu
kama Cats.

992
00:46:12,220 --> 00:46:16,570
Na browser ni kwenda Hazrat
kwamba fomu kwamba mimi defined.

993
00:46:16,570 --> 00:46:19,470
Na ni kwenda kupeleka
mtumiaji URL hiyo.

994
00:46:19,470 --> 00:46:23,420
Hivyo wakati huu, kwa sababu baadhi ya wadadisi,
I got habari zaidi kuhusu hifadhi ya

995
00:46:23,420 --> 00:46:24,410
kuliko kuhusu paka halisi.

996
00:46:24,410 --> 00:46:30,580
Lakini hiyo ni nzuri kwa sababu taarifa sisi bado
kuishia hapa, q sawa na paka.

997
00:46:30,580 --> 00:46:35,200
>> Hivyo muda mrefu hadithi fupi, inaonekana haki
yasiyo na maana ya kupata maoni kutoka kwa mtumiaji.

998
00:46:35,200 --> 00:46:38,190
Na kuwa wa haki, kuna mashada
ya aina nyingine ya mashamba ya fomu.

999
00:46:38,190 --> 00:46:41,510
Kuna hundi masanduku, na kidogo pande
kipekee redio vifungo, na

1000
00:46:41,510 --> 00:46:42,960
kushuka chini menyu, na zaidi.

1001
00:46:42,960 --> 00:46:46,160
Lakini wale wote ni kama kiasi
urahisi kutekelezwa kama

1002
00:46:46,160 --> 00:46:48,040
Nakala hii shamba mara.

1003
00:46:48,040 --> 00:46:52,050
Na hatimaye, sisi tu na kufanya
mtu uhakika ni kusikiliza kwa upande mwingine

1004
00:46:52,050 --> 00:46:56,490
mwisho wa mstari ili kupata kwamba
habari kusindika, kwa namna fulani, na

1005
00:46:56,490 --> 00:46:58,440
kutupatia nyuma paka wetu.

1006
00:46:58,440 --> 00:47:00,840
>> Hebu tuangalie kidogo
kushiriki zaidi mfano.

1007
00:47:00,840 --> 00:47:06,020
Basi mimi kwenda katika saraka Vhost yangu,
katika mitaa ya jeshi, umma, na ambapo mimi

1008
00:47:06,020 --> 00:47:06,980
kuweka chanzo leo kanuni.

1009
00:47:06,980 --> 00:47:09,800
Yote hii itakuwa juu ya kozi
tovuti kwa ajili ya wewe Tinker na.

1010
00:47:09,800 --> 00:47:15,420
Na kama mimi kwenda katika froshims, napenda kufungua
hadi faili hili sasa, froshim0.php.

1011
00:47:15,420 --> 00:47:18,460
Moja hii ni verbose zaidi kidogo, hivyo
sisi si kuandika hii kuanzia mwanzo.

1012
00:47:18,460 --> 00:47:21,970
Lakini tu taarifa chache sasa kiasi fulani
ukoo sifa.

1013
00:47:21,970 --> 00:47:24,550
>> Moja, fomu tag, tofauti action.

1014
00:47:24,550 --> 00:47:25,670
Ni si kamili ya URL.

1015
00:47:25,670 --> 00:47:29,930
Sasa, ni dhahiri na faili inayoitwa
register0.php kwa sababu, katika wakati huu,

1016
00:47:29,930 --> 00:47:32,660
Mimi nina kwenda kufundisha angaa kidogo
kitu kuhusu PHP, programu

1017
00:47:32,660 --> 00:47:37,360
lugha, kwa sababu PHP inaweza kutumika
kutekeleza yale Google kutekelezwa kama

1018
00:47:37,360 --> 00:47:39,650
mwisho nyuma ya injini zao za kutafuta.

1019
00:47:39,650 --> 00:47:42,890
>> Google, katika hali halisi, pengine anatumia
baadhi ya chatu, baadhi ya C + +, na

1020
00:47:42,890 --> 00:47:44,230
mashada ya lugha nyingine.

1021
00:47:44,230 --> 00:47:48,230
Lakini sisi inaweza shaka kutekeleza tafuta
matokeo ya kutumia PHP kama sisi alitaka.

1022
00:47:48,230 --> 00:47:49,610
Lakini kwa sasa, tutaweza kuitunza rahisi.

1023
00:47:49,610 --> 00:47:53,320
Na hii ni kweli ni kukumbusha ya moja
wa tovuti nyingine sana kwanza mimi

1024
00:47:53,320 --> 00:47:54,490
alifanya miaka iliyopita.

1025
00:47:54,490 --> 00:47:58,160
>> Nyuma katika siku zangu, ninyi kusajiliwa kwa
intramural michezo kama Freshman na

1026
00:47:58,160 --> 00:48:00,880
kujaza kipande cha karatasi, kutembea
hela yard, na kuacha ni katika

1027
00:48:00,880 --> 00:48:04,890
mailbox ya Proctor katika
Wigglesworth, na kwamba alikuwa ni jinsi gani

1028
00:48:04,890 --> 00:48:05,460
kusajiliwa.

1029
00:48:05,460 --> 00:48:09,650
Na hivyo mradi wangu muda mfupi baada ya CS50,
ilikuwa kuweka kwamba, ambayo hufanya kamili

1030
00:48:09,650 --> 00:48:13,460
maana, kwenye mtandao, ambayo ilikuwa si
kama katika Vogue kisha kama ilivyo sasa.

1031
00:48:13,460 --> 00:48:17,510
Lakini wote tulikuwa na kufanya ni kujenga,
kimsingi, HTML fomu.

1032
00:48:17,510 --> 00:48:19,640
>> Na fomu kwamba inaonekana
takribani kama hii.

1033
00:48:19,640 --> 00:48:22,480
Mimi nilikuwa na pembejeo kwa ajili ya
Freshman ya jina.

1034
00:48:22,480 --> 00:48:27,780
Mimi nilikuwa na sanduku mwingine hundi ya iwapo au
au walitaka kuwa nahodha, nini

1035
00:48:27,780 --> 00:48:30,400
jinsia zao ilikuwa, na
nini Dorm yao ilikuwa.

1036
00:48:30,400 --> 00:48:33,370
Na kisha mimi ngumu coded katika mambo
kama Apley Mahakama, na Canaday,

1037
00:48:33,370 --> 00:48:34,880
Grays, na kadhalika.

1038
00:48:34,880 --> 00:48:36,300
>> Hivyo tena, mpya ya vitambulisho.

1039
00:48:36,300 --> 00:48:39,820
Hawajaona hizi kabla, mpya
sifa, lakini haki kupatikana.

1040
00:48:39,820 --> 00:48:42,360
Mara baada ya kuona mfano, unaweza aina
ya kukopa kwamba wazo na kufanya tone

1041
00:48:42,360 --> 00:48:43,820
chini menu kwa ajili ya kitu zaidi.

1042
00:48:43,820 --> 00:48:46,350
Lakini nini muhimu ni kwamba kila moja ya
mambo haya yana majina.

1043
00:48:46,350 --> 00:48:49,720
Na chini ya fomu hii, kuna
submit kifungo ambaye studio,

1044
00:48:49,720 --> 00:48:51,510
au thamani, ni rejista.

1045
00:48:51,510 --> 00:48:52,670
>> Basi hebu kwenda kwa ukurasa huu.

1046
00:48:52,670 --> 00:48:55,050
Napenda kurudi nyuma katika
directory orodha.

1047
00:48:55,050 --> 00:48:59,410
Hebu kwenda katika froshims,
na kwenda froshim0.php.

1048
00:48:59,410 --> 00:49:01,150
Hivyo ni hideous, kuwa haki.

1049
00:49:01,150 --> 00:49:03,950
Ili niweze dhahiri stylize hii
pamoja na baadhi ya CSS, mimi naweza kufanya baadhi ya

1050
00:49:03,950 --> 00:49:06,890
graphics, labda kuongeza rangi fulani,
na kufanya hii prettier.

1051
00:49:06,890 --> 00:49:10,530
Lakini functionally, ningependa kusema kwamba hii
ni kweli pretty kamili.

1052
00:49:10,530 --> 00:49:15,190
>> Bahati mbaya, wakati mimi kujaza hii nje,
Daudi, Kapteni, Mwanaume, tutaweza kuchagua,

1053
00:49:15,190 --> 00:49:20,510
hebu sema Matthews, Daftari,
yote ambayo hufanyika ni hii.

1054
00:49:20,510 --> 00:49:21,910
Lakini taarifa michache ya takeaways.

1055
00:49:21,910 --> 00:49:27,130
Moja, nini faili akarudi wale
matokeo, inaonekana?

1056
00:49:27,130 --> 00:49:29,470
Hivyo ni kweli, register0.php.

1057
00:49:29,470 --> 00:49:34,570
Hivyo ukweli kwamba tuliona kwamba hatua
thamani wakati iliyopita kwa register0, hii

1058
00:49:34,570 --> 00:49:37,500
corroborates kwamba sisi hakika kumalizika
hadi saa faili husika.

1059
00:49:37,500 --> 00:49:39,040
>> Sasa hii ni mbaya maandishi.

1060
00:49:39,040 --> 00:49:42,810
Lakini taarifa kwamba Nakala hii ni
kuja kutoka jeshi mitaa,

1061
00:49:42,810 --> 00:49:44,170
ambayo ni kutoka appliance.

1062
00:49:44,170 --> 00:49:46,350
Fikiria appliance sasa kama tu
mtandao wa kompyuta ambayo inaweza kuwa katika

1063
00:49:46,350 --> 00:49:46,910
Sayansi Center.

1064
00:49:46,910 --> 00:49:48,060
Inaweza kuwa kwenye mtandao halisi.

1065
00:49:48,060 --> 00:49:49,850
Hivyo ni hadharani kupatikana.

1066
00:49:49,850 --> 00:49:55,480
>> Hivyo ni wazi, kuna baadhi ya njia ya kupita
kuunda pembejeo shamba kwa seva

1067
00:49:55,480 --> 00:49:56,840
hivyo kwamba wanaweza kufanya kitu pamoja nao.

1068
00:49:56,840 --> 00:49:59,020
Kwa bahati mbaya, register0
ni pretty kijinga.

1069
00:49:59,020 --> 00:50:01,870
All yake ni magazeti nje ya safu
kwamba inaonekana kama hii.

1070
00:50:01,870 --> 00:50:04,790
Na si safu katika
maana ya kwamba sisi kujua.

1071
00:50:04,790 --> 00:50:08,760
Zinageuka kuwa PHP, na mengi ya
lugha, na si tu numerically

1072
00:50:08,760 --> 00:50:12,350
indexed arrays ambao kwanza index ni
sifuri, basi mmoja, kisha mbili, kisha dot,

1073
00:50:12,350 --> 00:50:13,780
dot, dot, n bala 1.

1074
00:50:13,780 --> 00:50:16,400
>> Hii ni nini wito
associative safu.

1075
00:50:16,400 --> 00:50:21,150
safu associative ni moja ambayo
unaweza kuhifadhi jozi thamani muhimu ambapo

1076
00:50:21,150 --> 00:50:23,160
muhimu ni lazima si idadi.

1077
00:50:23,160 --> 00:50:25,580
Ni inaweza ukweli kuwa kamba, neno.

1078
00:50:25,580 --> 00:50:28,230
Na hivyo hii inaweza kutekelezwa,
chini ya Hood, ni zamu nje,

1079
00:50:28,230 --> 00:50:31,896
kutumia mfumo wa data inajulikana kama?

1080
00:50:31,896 --> 00:50:33,600
Walidhani kitu makubwa
mara kuhusu kutokea -

1081
00:50:33,600 --> 00:50:34,840
hash meza.

1082
00:50:34,840 --> 00:50:38,955
>> Hivyo meza hash, kukumbuka, wale wa wewe
ambaye alifanya hivyo kwa ajili ya P seti 6, au hata kukumbuka

1083
00:50:38,955 --> 00:50:44,110
yake, angalau hata kama alivyofanya kujaribu,
meza hash, katika matumizi yetu, ilikuwa kutumiwa

1084
00:50:44,110 --> 00:50:45,090
tu kuhifadhi maneno.

1085
00:50:45,090 --> 00:50:47,980
Lakini kwa kweli, wewe walikuwa kuhifadhi
funguo na maadili.

1086
00:50:47,980 --> 00:50:51,940
Kama wewe kutekelezwa meza hash kwa ajili ya P
kuweka 6 kamusi, funguo walikuwa

1087
00:50:51,940 --> 00:50:56,890
maneno yenyewe, na maadili
walikuwa ufanisi kweli au uongo.

1088
00:50:56,890 --> 00:51:00,190
Ndiyo, hapa, au inamuunga,
hakuna, si hapa.

1089
00:51:00,190 --> 00:51:02,140
>> Naam, tunaweza kujumlisha kwamba wazo.

1090
00:51:02,140 --> 00:51:06,230
Na tunaweza kutumia data sawa sana
muundo wa kuhifadhi si kamba

1091
00:51:06,230 --> 00:51:10,180
yenyewe peke yake katika meza yako hash, lakini
tuseme kwamba katika kila moja ya hash yako

1092
00:51:10,180 --> 00:51:11,130
meza ya nodi.

1093
00:51:11,130 --> 00:51:14,210
Na unaweza hata kufanya hivyo katika kujaribu
badala ya kuwa na bool.

1094
00:51:14,210 --> 00:51:15,350
Unaweza kuwa na kitu kingine.

1095
00:51:15,350 --> 00:51:19,590
Nini kama si muhimu ilikuwa Maxwell, kwa ajili ya
mfano, lakini quote unquote "jina," au

1096
00:51:19,590 --> 00:51:22,900
quote unquote "nahodha." Na ndani ya
yako C data muundo, unaweza kuweka

1097
00:51:22,900 --> 00:51:26,170
thamani, si tu Boolean, lakini thamani ya
kama quote unquote "Daudi," au

1098
00:51:26,170 --> 00:51:28,690
"M", au "Matthews," na kadhalika.

1099
00:51:28,690 --> 00:51:33,170
>> Hivyo wale huo data miundo sisi kutumika
inaonekana zipo katika lugha nyingine.

1100
00:51:33,170 --> 00:51:37,650
Na ningependa kusema wao ni kweli sana,
rahisi sana kupata hapa.

1101
00:51:37,650 --> 00:51:40,300
Hebu kwa kweli kuangalia
sasa katika baadhi ya syntax vile.

1102
00:51:40,300 --> 00:51:43,120
>> Mimi nina kwenda katika saraka PHP.

1103
00:51:43,120 --> 00:51:48,390
Na mimi nina kwenda kufungua bora
toleo la hujambo-0 kutoka kabla.

1104
00:51:48,390 --> 00:51:50,270
Taarifa kwamba wote mimi ilikuwa
kuongeza baadhi ya comments.

1105
00:51:50,270 --> 00:51:52,530
Hivyo tunaweza kujikwamua ovyo kwamba.

1106
00:51:52,530 --> 00:51:57,610
>> Na mpango huu gani kweli Prints
hujambo sababu nimekuwa maalum kati ya

1107
00:51:57,610 --> 00:52:01,420
vitambulisho kwamba nataka nitafanya kwamba kanuni.

1108
00:52:01,420 --> 00:52:03,380
Sasa, tutaweza kuona katika wakati
kwa nini hii ni muhimu.

1109
00:52:03,380 --> 00:52:05,630
Lakini hebu kufungua nyingine moja mfano hapa.

1110
00:52:05,630 --> 00:52:10,430
Hebu kwenda mbele na kufungua kusema,
gedit ya hali moja.

1111
00:52:10,430 --> 00:52:12,970
>> Hii ni njia ya nyuma katika muda sasa.

1112
00:52:12,970 --> 00:52:16,320
Lakini wiki iliyopita, nadhani, katika wiki moja au
wiki mbili, tulikuwa mfano kuitwa

1113
00:52:16,320 --> 00:52:18,470
conditions1.c.

1114
00:52:18,470 --> 00:52:22,050
Na niliamua reimplement katika PHP,
tu kwa aina ya kusisitiza kwamba

1115
00:52:22,050 --> 00:52:26,500
PHP, syntactically, ni karibu sawa
kwa C. Hii si leap kubwa

1116
00:52:26,500 --> 00:52:27,840
kutoka wiki iliyopita na hii.

1117
00:52:27,840 --> 00:52:31,230
>> Taarifa juu ya mpango huu, ambayo
inaanza, kama kabla, pamoja na baadhi ya

1118
00:52:31,230 --> 00:52:34,260
maoni, ambayo mimi itabidi kujikwamua
kama ya ovyo.

1119
00:52:34,260 --> 00:52:37,410
Taarifa kwamba mimi niko katika PHP
mode katika faili hii.

1120
00:52:37,410 --> 00:52:40,160
Hivyo kanuni hii, tutaweza kuona,
kupata kunyongwa.

1121
00:52:40,160 --> 00:52:42,670
Taarifa kwamba kuna readline,
ambayo pengine ni

1122
00:52:42,670 --> 00:52:46,230
Analog katika PHP ya GetString.

1123
00:52:46,230 --> 00:52:47,390
Taarifa ni tofauti kidogo.

1124
00:52:47,390 --> 00:52:51,410
Wewe kweli bayana wa haraka kwa
kazi kuitwa kusoma mstari, na kwamba

1125
00:52:51,410 --> 00:52:52,180
nini mtumiaji anaona.

1126
00:52:52,180 --> 00:52:53,520
Hivyo hawana printf manually.

1127
00:52:53,520 --> 00:52:54,860
Lakini si kwamba mpango kubwa.

1128
00:52:54,860 --> 00:52:59,150
Mimi nina kwenda kuhifadhi, ndani ya $ n,
kurudi thamani ya hii, hivyo chochote

1129
00:52:59,150 --> 00:53:00,490
mtumiaji aina katika ni int yao.

1130
00:53:00,490 --> 00:53:01,660
Na hapa mwingine udadisi.

1131
00:53:01,660 --> 00:53:05,810
Zinageuka, katika PHP, yoyote kutofautiana
tu ina kuwa prefixed

1132
00:53:05,810 --> 00:53:06,970
na ishara ya dola.

1133
00:53:06,970 --> 00:53:08,110
Ni kidogo annoying.

1134
00:53:08,110 --> 00:53:10,870
Lakini taarifa ya nini mimi si kufanyika katika PHP.

1135
00:53:10,870 --> 00:53:13,980
Kinachokosekana kutoka mkono wa kushoto
upande wa sawa na ishara?

1136
00:53:13,980 --> 00:53:15,430
>> Bila kutaja aina.

1137
00:53:15,430 --> 00:53:19,400
Hivyo hii ni tofauti na C. Kwa bora
au mbaya, PHP ni loosely

1138
00:53:19,400 --> 00:53:20,550
typed lugha.

1139
00:53:20,550 --> 00:53:22,010
Ni gani kuwa na idadi.

1140
00:53:22,010 --> 00:53:23,240
Ni gani kuwa masharti.

1141
00:53:23,240 --> 00:53:24,015
Ni gani booleans.

1142
00:53:24,015 --> 00:53:26,220
Na ni gani kuwa na wachache
nyingine data aina.

1143
00:53:26,220 --> 00:53:30,570
Lakini wewe, programu, kwa kawaida
hawana huduma ya juu yao.

1144
00:53:30,570 --> 00:53:34,010
suala la mafanikio ya hii ni kwamba inafanya
ni rahisi kidogo kwa mpango.

1145
00:53:34,010 --> 00:53:35,380
Unaweza kufikiri kidogo kidogo.

1146
00:53:35,380 --> 00:53:39,840
Upande mwingine ni pia kuufungua wewe hadi
uwezo mende kama ajali

1147
00:53:39,840 --> 00:53:43,080
kutibu idadi kama kamba, kamba
kama idadi, uwezekano, lakini hata

1148
00:53:43,080 --> 00:53:46,150
basi, PHP, na mengi ya lugha,
ni pretty kuhimili.

1149
00:53:46,150 --> 00:53:49,050
Wao kutumia kile kinachoitwa
thabiti akitoa.

1150
00:53:49,050 --> 00:53:55,220
Na kama wewe kujaribu kutumia n katika mazingira
ya hali ya numeric, itakuwa

1151
00:53:55,220 --> 00:53:58,040
kubadilisha nini hapa ni kwenda kuwa
kamba, kwa sababu kama mtumiaji aina

1152
00:53:58,040 --> 00:54:01,570
kitu katika, na kupata matokeo,
kama na readline, au kupata kamba,

1153
00:54:01,570 --> 00:54:02,910
hiyo ni kwenda na kurudi kamba.

1154
00:54:02,910 --> 00:54:07,360
>> Lakini sikia, mistari michache baadaye, mimi
kuangalia kama n ni kubwa kuliko sufuri.

1155
00:54:07,360 --> 00:54:13,370
Hivyo PHP ni kwenda kutupwa inamuunga yangu
"Kamba" 123, au chochote mtumiaji

1156
00:54:13,370 --> 00:54:14,860
aina katika, katika int.

1157
00:54:14,860 --> 00:54:18,730
Hivyo katika muda mfupi, mambo ya kazi tu
mengi zaidi intuitively.

1158
00:54:18,730 --> 00:54:23,410
Hivyo sisi sasa kuanza kupumzika wachache
mambo ambayo tumekuwa kufanyika huko nyuma.

1159
00:54:23,410 --> 00:54:24,780
>> mengi ya mambo haya ni
huo, ingawa.

1160
00:54:24,780 --> 00:54:26,340
Bado ni sawa sawa.

1161
00:54:26,340 --> 00:54:30,350
Kama PHP kando pia ina sawa sawa
sawa, lakini zaidi juu ya kwamba, pengine, katika

1162
00:54:30,350 --> 00:54:30,850
siku zijazo.

1163
00:54:30,850 --> 00:54:31,150
Hiyo ilikuwa ni.

1164
00:54:31,150 --> 00:54:35,660
Typo lakini wawili sawa na ishara maana sawa
Jambo kama kabla, kwa kulinganisha.

1165
00:54:35,660 --> 00:54:37,060
printf maana kitu sawa kama kabla.

1166
00:54:37,060 --> 00:54:39,160
Backslash n maana sawa
Jambo kama kabla.

1167
00:54:39,160 --> 00:54:40,390
>> Hivyo ni jinsi gani mimi kuendesha mpango huu?

1168
00:54:40,390 --> 00:54:44,400
Naam, kama kabla, kama mimi kufanya PHP,
conditions1.php, na aina ya

1169
00:54:44,400 --> 00:54:46,560
idadi kama 123.

1170
00:54:46,560 --> 00:54:47,720
Hiyo ni idadi chanya.

1171
00:54:47,720 --> 00:54:49,510
Kama mimi aina katika 0, mimi pick 0.

1172
00:54:49,510 --> 00:54:53,700
Na kama mimi aina katika 123 hasi, mimi kupata
nyuma ya simu hasi, ambayo ni ya pekee

1173
00:54:53,700 --> 00:54:59,050
kusema, syntactically, PHP
ni super, super sawa.

1174
00:54:59,050 --> 00:55:03,250
>> Hivyo ni kwa nini hii sasa muhimu
katika mazingira ya mtandao?

1175
00:55:03,250 --> 00:55:06,710
Naam, hebu kwenda nyuma froshims hii
mfano, ambayo inaonekana,

1176
00:55:06,710 --> 00:55:08,600
tena, kama hii hapa.

1177
00:55:08,600 --> 00:55:11,580
Na hebu kweli kuvuta up ukurasa wa mtandao
tena, ambayo inaonekana kama hii.

1178
00:55:11,580 --> 00:55:14,930
Nini tunaweza kufanya na
data hiyo in?

1179
00:55:14,930 --> 00:55:18,770
>> Naam, napenda kufungua karibu zaidi
toleo la hii.

1180
00:55:18,770 --> 00:55:20,920
Na utaona kwamba tatizo
seti vipimo matembezi yenu

1181
00:55:20,920 --> 00:55:22,850
kupitia machache ya haya.

1182
00:55:22,850 --> 00:55:29,610
Badala ya kuanza na sifuri,
hebu tuangalie froshims3,

1183
00:55:29,610 --> 00:55:31,410
ambayo haina kidogo zaidi.

1184
00:55:31,410 --> 00:55:34,780
>> Taarifa ya kwanza, kwa kweli, hebu kufungua
up nini 0 mara, hivyo unaweza kuona

1185
00:55:34,780 --> 00:55:37,170
nini kujiandikisha 0 ilikuwa.

1186
00:55:37,170 --> 00:55:40,040
Taarifa ya nini kujiandikisha 0 alivyofanya.

1187
00:55:40,040 --> 00:55:41,730
Moja, nina maoni kwa juu.

1188
00:55:41,730 --> 00:55:43,900
Kufuta hizo na lengo tu juu ya hii.

1189
00:55:43,900 --> 00:55:48,730
Zaidi ya yaliyomo ya register0.php
ni, ni wazi, ni lugha gani?

1190
00:55:48,730 --> 00:55:49,980
Tu mbichi PHP.

1191
00:55:49,980 --> 00:55:53,430
>> Hivyo taarifa, faili hii haina kuanza
na, kwa wakati huu, bracket wazi,

1192
00:55:53,430 --> 00:55:54,970
swali, PHP.

1193
00:55:54,970 --> 00:55:59,800
PHP gani kuruhusu intermingle
PHP kificho na HTML.

1194
00:55:59,800 --> 00:56:04,130
Lakini mimi tumefanya kwamba hapa ndani
ya ukurasa wa zaidi ya hapa.

1195
00:56:04,130 --> 00:56:08,180
>> Sasa, tena, utaweza tu kujua hii kutoka
alimtazama mwongozo. print_r,

1196
00:56:08,180 --> 00:56:13,410
ni zamu nje, ni print_recursive.
_recursive Na hii ni Handy

1197
00:56:13,410 --> 00:56:16,780
matumizi ya kazi kwamba tu Prints nje,
recursively, chochote mkono ni.

1198
00:56:16,780 --> 00:56:18,760
Kama wewe mkono ni safu,
kutakuwa na magazeti safu.

1199
00:56:18,760 --> 00:56:20,180
Kama wewe mkono ni ya simu,
kutakuwa na magazeti ya simu.

1200
00:56:20,180 --> 00:56:21,570
Mkono ni kamba, hivyo itabidi
magazeti kamba.

1201
00:56:21,570 --> 00:56:24,500
Kama wewe mkono ni meza hash, ni
itakuwa magazeti nje ya meza hash.

1202
00:56:24,500 --> 00:56:26,730
Huna kuandika kila
ya kwamba kanuni mwenyewe.

1203
00:56:26,730 --> 00:56:29,490
>> Sasa taarifa kwamba mimi nina kuingia
PHP mode zaidi ya hapa.

1204
00:56:29,490 --> 00:56:32,070
Mimi exiting PHP mode zaidi ya hapa.

1205
00:56:32,070 --> 00:56:35,950
Hivyo wakati server mtandao wasomaji faili hii
juu hadi chini, kushoto na kulia, kwa sababu

1206
00:56:35,950 --> 00:56:40,750
ni mwisho katika jina la faili kuitwa. php,
chochote si ndani ya vitambulisho PHP ni

1207
00:56:40,750 --> 00:56:42,820
kwenda tu kuwa na mate
nje, kama HTML ghafi.

1208
00:56:42,820 --> 00:56:43,630
Hakuna mpango mkubwa.

1209
00:56:43,630 --> 00:56:49,280
Lakini kwa haraka kama matangazo ya mtandao wa kompyuta
hii, ni kwenda kusema, mimi lazima si

1210
00:56:49,280 --> 00:56:51,850
mate nje, literally, print_r ya goli.

1211
00:56:51,850 --> 00:56:54,910
Mimi lazima kutekeleza yafuatayo
mstari wa kanuni.

1212
00:56:54,910 --> 00:56:59,850
>> Hivyo swali la mwisho, basi, ya faili hili
ni vizuri, nini heck ni hii?

1213
00:56:59,850 --> 00:57:00,530
Kuchukua nadhani.

1214
00:57:00,530 --> 00:57:04,230
Je, ni $ _POST, pengine?

1215
00:57:04,230 --> 00:57:07,070
>> Watazamaji: [inaudible]

1216
00:57:07,070 --> 00:57:08,830
>> SPIKA 1: Yeah, data posted.

1217
00:57:08,830 --> 00:57:11,350
Kumbuka, hebu nyuma katika kitabu
muda kwa muda tu.

1218
00:57:11,350 --> 00:57:13,165
froshim0, tena, inaonekana kama hii.

1219
00:57:13,165 --> 00:57:15,640
wengi super ya hii ni HTML.

1220
00:57:15,640 --> 00:57:18,410
Tena, baadhi ya vitambulisho una si
kuonekana bado, au na ambayo

1221
00:57:18,410 --> 00:57:19,360
wewe tayari ni ukoo.

1222
00:57:19,360 --> 00:57:21,990
Lakini jambo kuvutia ilikuwa hii.

1223
00:57:21,990 --> 00:57:27,270
Msitari huu mmoja ni nini kweli Viungo
kwa faili wetu register0.php.

1224
00:57:27,270 --> 00:57:29,200
Mimi kuwasilisha kupitia baada mbinu.

1225
00:57:29,200 --> 00:57:33,130
Na hiyo ina maana kwamba vigezo
aina user katika si

1226
00:57:33,130 --> 00:57:35,150
kwenda kuishia wapi.

1227
00:57:35,150 --> 00:57:36,175
>> Wao siyo kwenda
show up katika URL.

1228
00:57:36,175 --> 00:57:39,020
Wao bado kwenda kutumwa kutoka
mteja, kutoka browser, kwa

1229
00:57:39,020 --> 00:57:42,080
server, lakini tu kupitia baadhi ya wengine
utaratibu kwamba tutaweza kuondoa mikono yetu

1230
00:57:42,080 --> 00:57:44,330
saa ya leo, lakini siyo katika URL.

1231
00:57:44,330 --> 00:57:47,630
Lakini taarifa uhusiano wa sasa na
baada, ambayo, kwa mkataba, ni

1232
00:57:47,630 --> 00:57:49,160
Herufi za chini hapa.

1233
00:57:49,160 --> 00:57:54,090
>> Lakini kama mimi kufungua register0.php,
Mimi inaonekana uchapishaji hii.

1234
00:57:54,090 --> 00:57:56,450
Hivyo hii ni aina ya weird
kumtaja mkataba.

1235
00:57:56,450 --> 00:58:01,430
Lakini nini ni nzuri katika PHP ni kwamba wakati
kutumia PHP katika mazingira ya mtandao, si wakati

1236
00:58:01,430 --> 00:58:04,480
amri line kama mimi wakati iliyopita,
wakati wewe ni kweli kutumia katika mtandao

1237
00:58:04,480 --> 00:58:10,580
ukurasa, katika saraka Vhost kama sisi,
moja kwa moja itakuwa PHP kujaza hii

1238
00:58:10,580 --> 00:58:15,560
kitu, ambayo ni safu associative,
hivyo kusema, meza hash, na

1239
00:58:15,560 --> 00:58:17,290
kila kitu mtumiaji typed in

1240
00:58:17,290 --> 00:58:22,000
>> Kwa kifupi _POST, $ katika mechi zote ni
kimataifa variable kwamba PHP tu

1241
00:58:22,000 --> 00:58:25,050
magically inajenga kwa ajili yenu wakati
kutumia PHP katika mazingira mtandao.

1242
00:58:25,050 --> 00:58:29,160
Na unaweka ndani yake yote ya
majina ya vigezo katika fomu kuwa

1243
00:58:29,160 --> 00:58:33,200
iliwasilishwa kwa faili hii na wote wa
maadili ambayo mtumiaji typed in

1244
00:58:33,200 --> 00:58:37,790
Hivyo ni mikono na wewe nini mtumiaji
typed katika fomu hiyo.

1245
00:58:37,790 --> 00:58:42,210
>> Hivyo kabla, tulipata kweli wajinga pato
wa tu kuona hili kwa sababu wote mimi

1246
00:58:42,210 --> 00:58:44,400
ilikuwa recursively magazeti hii safu.

1247
00:58:44,400 --> 00:58:46,060
muhimu ni jina, thamani ni Daudi.

1248
00:58:46,060 --> 00:58:46,980
muhimu ni Kapteni.

1249
00:58:46,980 --> 00:58:47,970
thamani ni juu.

1250
00:58:47,970 --> 00:58:52,300
Na mshale mara mbili na angle
bracket huko, hii ni holela.

1251
00:58:52,300 --> 00:58:53,270
Hii si kanuni.

1252
00:58:53,270 --> 00:58:57,690
Hii ni njia tu PHP ya kuonyesha
nini thamani ya muhimu ni baadhi.

1253
00:58:57,690 --> 00:59:03,000
>> Lakini sasa napenda kupendekeza kwamba katika
froshIMs3, ni karibu kufanana

1254
00:59:03,000 --> 00:59:04,950
isipokuwa elekeza na faili hii.

1255
00:59:04,950 --> 00:59:08,570
Na tena, tunakwenda tu aina ya
mtazamo saa hii, tu kuona baadhi ya

1256
00:59:08,570 --> 00:59:12,040
syntax, lakini taarifa ya kile
faili hili gani.

1257
00:59:12,040 --> 00:59:14,930
Kuchukua nadhani tu ya msingi ya mistari ya
kanuni, ambayo pengine hawana kuangalia kama

1258
00:59:14,930 --> 00:59:17,410
Kigiriki, kwa kiasi fulani,
ni inaonekana kufanya.

1259
00:59:17,410 --> 00:59:20,580

1260
00:59:20,580 --> 00:59:23,110
>> Faili hii ni namna fulani kuhusiana
kwa barua, barua pepe.

1261
00:59:23,110 --> 00:59:24,770
Hivyo ni nini mpango huu kufanya?

1262
00:59:24,770 --> 00:59:28,740
Katika toleo hili, kama ningekuwa kweli
kujaza fomu hii - na napenda kwenda

1263
00:59:28,740 --> 00:59:30,760
froshIMs3, si froshIMs0 -

1264
00:59:30,760 --> 00:59:33,280

1265
00:59:33,280 --> 00:59:34,540
fomu inaonekana sawa.

1266
00:59:34,540 --> 00:59:37,980
Daudi, nahodha, kiume, Dorm, Matthews.

1267
00:59:37,980 --> 00:59:42,980
Lakini kama mimi kuwasilisha hii, faili hili ni
kwenda kwenda register3.php.

1268
00:59:42,980 --> 00:59:46,330
>> Na mimi kudai, kwa kuangalia ni
chanzo code, ni kwenda

1269
00:59:46,330 --> 00:59:47,650
namna fulani kuhusisha email.

1270
00:59:47,650 --> 00:59:49,620
Hebu kwenda mbele na kufungua hii
juu katika dirisha kubwa, hivyo sisi

1271
00:59:49,620 --> 00:59:51,030
unaweza kuona zaidi cleanly.

1272
00:59:51,030 --> 00:59:57,220
Tuko katika jeshi Vhosts, mitaa,
umma, froshims.

1273
00:59:57,220 --> 00:59:58,680
Mimi naenda kufungua tofauti
mpango, hivyo tu sisi

1274
00:59:58,680 --> 01:00:00,160
unaweza kuona zaidi kwa mara moja.

1275
01:00:00,160 --> 01:00:03,100
>> Hivyo sasa hapa, taarifa mambo machache.

1276
01:00:03,100 --> 01:00:06,530
Saa ya juu ya faili ni wazi
bracket, swali alama, PHP.

1277
01:00:06,530 --> 01:00:08,920
Kisha kuna rundo la maoni,
ambayo tunaweza kupuuza, ni

1278
01:00:08,920 --> 01:00:10,450
uninteresting kwa sasa.

1279
01:00:10,450 --> 01:00:11,300
>> Sasa kuna hii.

1280
01:00:11,300 --> 01:00:14,200
Zinageuka PHP ina mengi
ya maadili ya kuitwa kuhitaji.

1281
01:00:14,200 --> 01:00:19,110
Ni sawa sana katika roho ya C
pamoja, ni pamoja na hash, ambayo

1282
01:00:19,110 --> 01:00:21,980
kimsingi grabs maudhui ya baadhi
nyingine faili na tu plops yao hapa,

1283
01:00:21,980 --> 01:00:22,930
hivyo unaweza kutumia yao.

1284
01:00:22,930 --> 01:00:27,060
Katika kesi hiyo, appliance ina,
kabla ya imewekwa, maktaba, huru na

1285
01:00:27,060 --> 01:00:29,900
wazi chanzo maktaba kuitwa PHP
mailer kwamba mtu yeyote anaweza

1286
01:00:29,900 --> 01:00:30,770
download kutoka internet.

1287
01:00:30,770 --> 01:00:32,000
Sisi tu alifanya hivyo kwa ajili yenu.

1288
01:00:32,000 --> 01:00:36,130
Na hii ina maana mimi sasa wana email
utendaji katika ovyo wangu.

1289
01:00:36,130 --> 01:00:38,170
>> Sasa, taarifa mambo machache.

1290
01:00:38,170 --> 01:00:41,120
Mimi nina kwenda kuhalalisha
fomu ya kuwasilisha.

1291
01:00:41,120 --> 01:00:45,980
Zamu nje PHP, moja, ina Moderators
pointi kwa operator si, kama

1292
01:00:45,980 --> 01:00:49,810
C. Lakini PHP pia ina kazi
kuitwa tupu.

1293
01:00:49,810 --> 01:00:53,920
>> Tupu tu anarudi kweli kama thamani
ya kitu wewe mkono ni katika

1294
01:00:53,920 --> 01:00:57,190
mabano ni tupu, kama
mtumiaji hakuwa aina kitu in

1295
01:00:57,190 --> 01:01:02,680
Hivyo hii ni kusema, na taarifa
syntax, sana kukumbusha ya C, kama

1296
01:01:02,680 --> 01:01:07,730
jina muhimu, hivyo shamba jina katika fomu,
ambayo ilikuwa in kupitia post, na

1297
01:01:07,730 --> 01:01:13,010
mtumiaji, si kwa tupu, na wao
jinsia si tupu katika fomu kama

1298
01:01:13,010 --> 01:01:15,980
vizuri, na Dorm yao si tupu -

1299
01:01:15,980 --> 01:01:19,980
lakini taarifa Sijali kuhusu Kapteni,
basi ni sisi kwenda kufanya?

1300
01:01:19,980 --> 01:01:21,990
>> Mimi nina kwenda kutekeleza
line hii ya maadili.

1301
01:01:21,990 --> 01:01:24,100
Na unaweza kufikiria aina hii ya
kama malloc, lakini ni kidogo

1302
01:01:24,100 --> 01:01:24,800
fancier zaidi ya hiyo.

1303
01:01:24,800 --> 01:01:29,200
Lakini kwa sasa hii inanipa maalum
Struct ya aina PHP mailer.

1304
01:01:29,200 --> 01:01:31,410
Lakini kupuuza neno msingi jipya kwa leo.

1305
01:01:31,410 --> 01:01:35,670
>> Sasa mimi nina kwenda kuwaita kazi kuitwa
IsSMTP, ambayo anasema, kutumia SMTP.

1306
01:01:35,670 --> 01:01:39,380
Hii ni bandari ya 25, kama video
wiki iliyopita, wakati jambo alikuwa kutupa

1307
01:01:39,380 --> 01:01:40,710
barua pepe ndani ya firewall.

1308
01:01:40,710 --> 01:01:42,440
Bandari 25 ni SMTP.

1309
01:01:42,440 --> 01:01:44,410
SMTP ina maana kutumia seva ya barua.

1310
01:01:44,410 --> 01:01:46,215
Ambayo moja, tunaweza kutumia Harvard
SMTP.fas.harvard.edu.

1311
01:01:46,215 --> 01:01:48,850

1312
01:01:48,850 --> 01:01:51,590
>> Tunaweza kuweka kutoka anwani
kuwa Yohana Harvard.

1313
01:01:51,590 --> 01:01:55,090
Kama mimi kitabu chini zaidi, siwezi kuweka
anuani ya mpokeaji, tu

1314
01:01:55,090 --> 01:01:56,840
kiholela, kuwa Yohana
Harvard ni kama vile.

1315
01:01:56,840 --> 01:01:59,210
Hivyo yeye kwenda kuwa emailing mwenyewe.

1316
01:01:59,210 --> 01:02:01,600
>> Sasa naweza kuweka somo
kuwa usajili.

1317
01:02:01,600 --> 01:02:03,700
Na siwezi kuweka mwili
wa barua pepe kama ifuatavyo.

1318
01:02:03,700 --> 01:02:06,500
Line hii inaonekana kidogo zaidi fumbo,
lakini hiyo ni kwa sababu tu kuna mengi

1319
01:02:06,500 --> 01:02:07,450
wa habari katika hilo.

1320
01:02:07,450 --> 01:02:10,670
Moja, kuna operator dot.

1321
01:02:10,670 --> 01:02:14,510
Mtu lazima kujua tayari kile
operator dot gani.

1322
01:02:14,510 --> 01:02:15,436
Ni concatenation.

1323
01:02:15,436 --> 01:02:19,240
Hivyo kama unataka kuchukua kamba katika PHP,
na append yake, au prepend yake,

1324
01:02:19,240 --> 01:02:23,500
mwingine kamba katika PHP, kumshukuru Mungu wewe
hawana kutumia strcopy na malloc,

1325
01:02:23,500 --> 01:02:25,490
Na yote hayo tena.

1326
01:02:25,490 --> 01:02:28,765
>> Kama unataka concatenate masharti mawili,
anayenijali kumbukumbu.

1327
01:02:28,765 --> 01:02:30,850
Hebu PHP kwamba takwimu kwa ajili yenu.

1328
01:02:30,850 --> 01:02:35,200
Nini PHP kufanya na operator dot
hapa ni kufanya tu adhabu kubwa nje

1329
01:02:35,200 --> 01:02:37,900
ya mstari huu, mstari huu,
mstari huu, hii line.

1330
01:02:37,900 --> 01:02:40,460
Na sasa ilani, ni kwenda
kuwa plugging katika maadili.

1331
01:02:40,460 --> 01:02:43,680
Hivyo barua pepe kwamba John Harvard kinaendelea
kupokea ni halisi kwenda kusema

1332
01:02:43,680 --> 01:02:49,450
jina, koloni, kitu, badala yake, basi sisi
kamba na kuifunga concatenate juu ya

1333
01:02:49,450 --> 01:02:52,220
chochote mtumiaji typed
katika, basi mstari mpya.

1334
01:02:52,220 --> 01:02:54,570
>> Basi, juu ya mstari wa pili wa Yohana Harvard
barua pepe, ni kwenda kusema

1335
01:02:54,570 --> 01:02:55,910
Nahodha, Juu au Hakuna kitu.

1336
01:02:55,910 --> 01:02:57,810
Ni kwenda kusema jinsia,
kiume au wa kike.

1337
01:02:57,810 --> 01:02:59,680
Dorm ni kwenda kuwa Matthews
katika kesi yangu.

1338
01:02:59,680 --> 01:03:03,400
Na kisha taarifa semicolon ukoo
mwishoni sana.

1339
01:03:03,400 --> 01:03:07,830
Na kisha, chini hapa, ilani, kwa kiasi fulani
cryptic bado, lakini tena, kufuatia

1340
01:03:07,830 --> 01:03:12,730
mfano kwamba itakuwa zaidi ya ukoo
baada ya P kuweka 7, kama kutuma barua

1341
01:03:12,730 --> 01:03:16,610
anarudi uongo, kisha kwenda mbele na kufa.

1342
01:03:16,610 --> 01:03:19,610
>> Hivyo PHP ina kazi kuitwa kufa,
ambayo, literally, tu unaua

1343
01:03:19,610 --> 01:03:22,830
tovuti na tu Prints nje chochote
kumweleza yake - yake ni kufa

1344
01:03:22,830 --> 01:03:24,280
maneno, hivyo kusema.

1345
01:03:24,280 --> 01:03:28,310
Na kwamba, katika kesi hiyo, itakuwa magazeti
nje nini info kosa ni kwa

1346
01:03:28,310 --> 01:03:29,860
chochote kilichotokea kwenda vibaya.

1347
01:03:29,860 --> 01:03:34,490
Hivyo muda mrefu hadithi fupi hapa, nini sisi
ni mfano ambapo wakati mtumiaji

1348
01:03:34,490 --> 01:03:39,150
elekeza fomu, froshim0,
froshims3.php, unaendelea na

1349
01:03:39,150 --> 01:03:40,760
register3.php.

1350
01:03:40,760 --> 01:03:45,290
Lakini register3.php kisha kuendelea
kutekeleza yote ya mistari haya.

1351
01:03:45,290 --> 01:03:46,620
>> Hivyo kuna wachache kuchukua aways hapa.

1352
01:03:46,620 --> 01:03:50,380
Moja, ni inaonekana haki rahisi,
programmatically, kwa kutuma barua pepe,

1353
01:03:50,380 --> 01:03:50,830
ambayo ni nzuri.

1354
01:03:50,830 --> 01:03:53,500
Wakati watumiaji kujiandikisha kwa ajili ya tovuti yako, katika
kesi hii, wakati wao kujiandikisha kwa ajili yako

1355
01:03:53,500 --> 01:03:56,220
michezo, unaweza email Freshman
Proctor, au Yohana

1356
01:03:56,220 --> 01:03:57,650
Harvard, katika kesi hii.

1357
01:03:57,650 --> 01:04:01,630
>> Lakini pia ina maana unaweza kufanya nini?

1358
01:04:01,630 --> 01:04:03,970
Kutuma barua pepe kutoka kwa mtu yeyote kwa mtu yeyote.

1359
01:04:03,970 --> 01:04:05,430
Na hii ni kweli sana.

1360
01:04:05,430 --> 01:04:08,580
Hii si kama kufanyika kwa urahisi kama
wewe ni kutumika kwa kutumia Gmail.

1361
01:04:08,580 --> 01:04:11,310
Lakini kama wameweza milele kutumika Eudora au
Mtazamo, unaweza pretty much kuwaambia

1362
01:04:11,310 --> 01:04:13,720
mail server kwamba wewe ni
mtu yeyote unataka.

1363
01:04:13,720 --> 01:04:16,450
Na hii ni pale ambapo mimi haja ya kuweka kwenye
kwamba kofia na kusema, si kufanya hili.

1364
01:04:16,450 --> 01:04:21,140
Lakini hii ni ushahidi wa jinsi tu rahisi
ni kufanya mashambulizi ya hadaa, na

1365
01:04:21,140 --> 01:04:24,310
kutuma barua pepe bila majina, na
spam, kwa ujumla zaidi.

1366
01:04:24,310 --> 01:04:27,330
Na ni kweli majipu chini
ukweli kwamba wote unahitaji ni baadhi ya

1367
01:04:27,330 --> 01:04:28,500
programu upatikanaji.

1368
01:04:28,500 --> 01:04:31,940
>> Kama kando, yangu wakutane wa karibu na
bodi ad, Freshman yangu mwenyewe mwaka,

1369
01:04:31,940 --> 01:04:34,320
mara wakati mimi kugundua hii baridi
hila kwamba, wow, unaweza

1370
01:04:34,320 --> 01:04:36,850
kutuma barua pepe kutoka kwa mtu yeyote.

1371
01:04:36,850 --> 01:04:39,770
Na hivyo sisi walikuwa kuwa na baadhi ya kijinga
hoja, literally, katika Matthews,

1372
01:04:39,770 --> 01:04:40,790
miongoni mwa Proctor kundi yangu.

1373
01:04:40,790 --> 01:04:42,470
Mimi wala hata kukumbuka
nini suala hilo.

1374
01:04:42,470 --> 01:04:44,970
Lakini nilitaka kujaribu kuweka
mwisho wa mjadala huu wa kijinga.

1375
01:04:44,970 --> 01:04:48,580
>> Hivyo niliamua mimi tu kutuma barua pepe
kwa Proctor kundi yangu, na kujifanya kuwa

1376
01:04:48,580 --> 01:04:52,000
guy nyingine, na ambao maoni mimi
khitalifiana, na kuwa naye acquiesce kwa

1377
01:04:52,000 --> 01:04:54,680
chochote maoni yangu ilikuwa katika
mjadala huu hasa.

1378
01:04:54,680 --> 01:04:59,320
Na hivyo mimi kughushi email hii kwa kutumia
mbinu sawa katika roho hii.

1379
01:04:59,320 --> 01:05:01,256
Lakini ilikuwa ni rahisi kweli
kwa wakati.

1380
01:05:01,256 --> 01:05:02,435
Hit kutuma.

1381
01:05:02,435 --> 01:05:06,660
Yeye hakuwa radhi, wala wanaotaka
wamekuwa bodi ad.

1382
01:05:06,660 --> 01:05:10,280
>> Na mimi mara kwa haraka sana hawakupata ndani ya
sekunde kwa sababu, kama unajua, mimi saini

1383
01:05:10,280 --> 01:05:11,420
barua pepe yangu katika njia fulani.

1384
01:05:11,420 --> 01:05:14,200
Na ingawa mimi kufanya hivyo manually, katika kubwa
sehemu, miaka 15 baadaye kwa sababu nilikuwa

1385
01:05:14,200 --> 01:05:15,080
wana matatizo na kwamba.

1386
01:05:15,080 --> 01:05:16,960
Sina saini
kwenye email yangu sasa.

1387
01:05:16,960 --> 01:05:20,440
Lakini mwaka 1995, mimi tu alikuwa sig,
saini katika barua pepe yangu.

1388
01:05:20,440 --> 01:05:24,630
Hivyo kulikuwa na kumbuka hii akisema, Ndugu
Proctor kundi, mimi acquiesce maoni yangu

1389
01:05:24,630 --> 01:05:31,240
na kukubaliana na Daudi, saini na hivyo
hivyo, mstari wa mwezi, mpya mstari, DJM.

1390
01:05:31,240 --> 01:05:36,220
>> Hivyo si kufanya hivyo au, kwa ujumla, kuchukua
Faida ya mbinu hii.

1391
01:05:36,220 --> 01:05:39,950
Lakini wakati wa kufanya tovuti, kama kwa ajili ya
mradi wako wa mwisho, wakati wa kufanya

1392
01:05:39,950 --> 01:05:43,460
tovuti kwa ajili ya kitu ujasiriamali,
hii ni jinsi gani, pragmatically, unaweza

1393
01:05:43,460 --> 01:05:47,000
kujiinua huduma nyingine za kwenye mtandao
kama barua na kisha kweli

1394
01:05:47,000 --> 01:05:49,440
kutuma mambo kwa kutumia kanuni.

1395
01:05:49,440 --> 01:05:51,240
>> Hivyo ni jinsi gani tunaweza kuboresha juu ya hili?

1396
01:05:51,240 --> 01:05:54,370
Naam, kwanza hebu kuchukua ziara ya haraka ya
baadhi ya mambo ambayo utaona,

1397
01:05:54,370 --> 01:05:56,170
na kisha kuchukua kuangalia
mifano michache.

1398
01:05:56,170 --> 01:05:59,500
Hivyo moja, kuwahakikishia, kwa sababu
sisi ni akiruka PHP.

1399
01:05:59,500 --> 01:06:02,470
Na najua, wakati fulani, itabidi
kwa kweli hii kuanza kuandika kama wewe

1400
01:06:02,470 --> 01:06:03,460
si tayari.

1401
01:06:03,460 --> 01:06:06,220
Kutambua kwamba, moja, kuu ni aina
ya nje ya dirisha na PHP.

1402
01:06:06,220 --> 01:06:09,420
Kama unataka kuandika kanuni kwamba anapata
kunyongwa, wewe tu kuanza kuandika katika

1403
01:06:09,420 --> 01:06:13,970
faili inayoitwa. php ya muda mrefu kama
una mabano wazi

1404
01:06:13,970 --> 01:06:15,620
swali PHP tag.

1405
01:06:15,620 --> 01:06:19,730
>> Lakini taarifa hizi ni
masharti katika php.

1406
01:06:19,730 --> 01:06:22,610
Taarifa, hii ni exact slide
tulikuwa katika wiki moja wakati tulikuwa

1407
01:06:22,610 --> 01:06:25,670
hali katika Masharti C. katika
PHP ni kimuundo na

1408
01:06:25,670 --> 01:06:27,140
syntactically sawa.

1409
01:06:27,140 --> 01:06:30,290
Tu mabadiliko ya kweli ni kama nimepata
vigezo husika, una wale

1410
01:06:30,290 --> 01:06:31,600
dola ishara.

1411
01:06:31,600 --> 01:06:33,970
>> Wakati huo huo, Boolean maneno
kuangalia kama hii kwa ajili ya

1412
01:06:33,970 --> 01:06:35,725
au-ing au na-ing pamoja.

1413
01:06:35,725 --> 01:06:37,780
Swichi kuangalia sawa.

1414
01:06:37,780 --> 01:06:42,180
Nini ni nzuri katika PHP, ambapo katika C,
swichi kuwa kesi ya

1415
01:06:42,180 --> 01:06:46,380
primitives kama ints au chars, katika PHP
kesi yako kauli kweli anaweza

1416
01:06:46,380 --> 01:06:48,430
juu ya masharti yote, ambayo ni
kweli aina ya nzuri.

1417
01:06:48,430 --> 01:06:49,480
Huwaokoeni baadhi ya wakati.

1418
01:06:49,480 --> 01:06:50,820
Hawakuweza kufanya hivyo katika C.

1419
01:06:50,820 --> 01:06:52,880
>> Hapa ni kitanzi kwa katika PHP.

1420
01:06:52,880 --> 01:06:53,740
Ni kufanana.

1421
01:06:53,740 --> 01:06:55,400
Wanaweza kuwa na baadhi ya ishara ya dola
kwa vigezo.

1422
01:06:55,400 --> 01:06:57,530
Huna kutaja kwamba
kitu ni int.

1423
01:06:57,530 --> 01:07:00,580
Wewe tu kutangaza na ishara ya dola
na jina la kutofautiana.

1424
01:07:00,580 --> 01:07:01,430
Lakini kwa kitanzi ni sawa.

1425
01:07:01,430 --> 01:07:02,760
kitanzi wakati ni sawa.

1426
01:07:02,760 --> 01:07:04,870
kufanya wakati kitanzi ni sawa.

1427
01:07:04,870 --> 01:07:06,170
>> Hii ni tofauti kidogo.

1428
01:07:06,170 --> 01:07:12,410
Hivyo kwa PHP, na safu, unaweza
statically kutangaza safu, kama katika C,

1429
01:07:12,410 --> 01:07:14,420
lakini wewe kutumia mabano mraba.

1430
01:07:14,420 --> 01:07:17,060
Katika C, ungependa kutumia braces curly,
kama wewe hata alijua kwamba.

1431
01:07:17,060 --> 01:07:20,910
Lakini hii ni kweli ni ya kawaida sana katika PHP
kutangaza safu, katika kesi hii,

1432
01:07:20,910 --> 01:07:23,640
ya idadi, na kuwaita
kutofautiana namba.

1433
01:07:23,640 --> 01:07:25,300
>> Vigezo wenyewe kuangalia kama hii.

1434
01:07:25,300 --> 01:07:28,710
Hapa ni kamba, kunukuu unquote "hello
dunia ". Unaweza kuwa na n backslash.

1435
01:07:28,710 --> 01:07:30,950
Mimi tu hawana katika kesi hii.

1436
01:07:30,950 --> 01:07:32,640
>> Sasa hii ni kujenga kuvutia.

1437
01:07:32,640 --> 01:07:33,700
C hana hii.

1438
01:07:33,700 --> 01:07:34,700
Lakini hii ni super kusaidia.

1439
01:07:34,700 --> 01:07:38,160
Na utaona hii katika P seti 7
spec - kwa ajili ya kujenga kila aina.

1440
01:07:38,160 --> 01:07:41,800
Kama unataka kusisitiza juu ya yote ya
vipengele safu, huna

1441
01:07:41,800 --> 01:07:45,500
kukabiliana na $ i na $ n,
na + +, na wote.

1442
01:07:45,500 --> 01:07:47,640
Unaweza literally kusema, katika PHP, hii -

1443
01:07:47,640 --> 01:07:51,890
kwa kila idadi kama ya simu, hivyo
Mimi nina kuchukua kwamba $ idadi

1444
01:07:51,890 --> 01:07:53,380
ni safu ya idadi.

1445
01:07:53,380 --> 01:07:56,460
Na wakati mimi kusema kwa idadi ya kila aina
kama posta, hii ni kwenda

1446
01:07:56,460 --> 01:08:00,505
moja kwa moja, kama kitanzi yangu executes,
update, juu ya kila iteration, thamani

1447
01:08:00,505 --> 01:08:03,260
ndani ya dola idadi ishara -

1448
01:08:03,260 --> 01:08:07,730
tena, na tena, na tena kutembea
kwa ajili yangu juu ya safu hiyo.

1449
01:08:07,730 --> 01:08:08,735
Hivyo tu tuokoa kanuni.

1450
01:08:08,735 --> 01:08:12,250
Hakuna semicolons, hakuna + + 's, hakuna i ni,
hakuna cha n, ni nzuri tu.

1451
01:08:12,250 --> 01:08:13,700
>> Lakini pia ina PHP hii.

1452
01:08:13,700 --> 01:08:14,830
Na hii ni super nguvu.

1453
01:08:14,830 --> 01:08:17,410
Na wewe utakuwa kutumia mikono hii,
juu, katika P kuweka 7.

1454
01:08:17,410 --> 01:08:21,990
Na safu associative pia alitangaza
pamoja na mabano mraba.

1455
01:08:21,990 --> 01:08:23,569
Lakini taarifa syntax sasa.

1456
01:08:23,569 --> 01:08:26,880
Ni sawa na yale tuliona
na print_r wakati iliyopita.

1457
01:08:26,880 --> 01:08:31,810
Ngapi funguo, kama kuangalia kidogo sanity,
haina safu hii wanaonekana kuwa na.

1458
01:08:31,810 --> 01:08:32,689
>> Hivyo ina mbili.

1459
01:08:32,689 --> 01:08:33,830
Na mimi simu hii safu.

1460
01:08:33,830 --> 01:08:36,760
Lakini kama inasaidia, unaweza kufikiri
ya hii meza kama hash, au kama

1461
01:08:36,760 --> 01:08:37,930
safu associative.

1462
01:08:37,930 --> 01:08:39,580
Lakini ni tu tofauti
aina ya safu.

1463
01:08:39,580 --> 01:08:41,080
Na tena, lugha mbalimbali
kuwa na haya.

1464
01:08:41,080 --> 01:08:43,810
Tutaweza kuona kitu sawa
katika JavaScript pia.

1465
01:08:43,810 --> 01:08:44,609
Kuna funguo mbili.

1466
01:08:44,609 --> 01:08:48,390
Moja ni quote unquote, "ishara," mmoja ni
quote unquote "bei." Na wale funguo

1467
01:08:48,390 --> 01:08:49,250
kila mmoja kuwa na thamani.

1468
01:08:49,250 --> 01:08:54,420
Katika kesi hii thamani ishara ni FB, kwa ajili ya
Thamani Facebook, na bei ni 49, 26,

1469
01:08:54,420 --> 01:08:56,899
ambayo ilikuwa biashara ya Facebook
bei kama ya asubuhi hii.

1470
01:08:56,899 --> 01:09:00,170
>> Kwa hiyo kile ni muhimu kuhusu
safu associative.

1471
01:09:00,170 --> 01:09:02,620
Mimi naweza kuwa alikuwa numerically
indexed safu na tu

1472
01:09:02,620 --> 01:09:04,120
rahisi mraba mabano.

1473
01:09:04,120 --> 01:09:09,380
Na mimi naweza kuwa na dola ishara
quote sawa tu hii.

1474
01:09:09,380 --> 01:09:10,529
Hebu kweli kufanya hivyo.

1475
01:09:10,529 --> 01:09:14,796
Nadhani badala tu alitangaza
hii safu kama hiyo.

1476
01:09:14,796 --> 01:09:17,590
Hiyo ni kikamilifu halali,
syntactically.

1477
01:09:17,590 --> 01:09:20,569
Haina kupoteza habari yoyote,
per se.

1478
01:09:20,569 --> 01:09:24,760
Mimi bado kuona kwamba ni ishara fb,
na kwamba bei ni 49, 26.

1479
01:09:24,760 --> 01:09:28,939
Hivyo kwa nini ni associative
arrays kulazimisha?

1480
01:09:28,939 --> 01:09:30,189
>> Watazamaji: Huwezi kukumbuka
ambapo wewe kuweka mambo ya ajabu.

1481
01:09:30,189 --> 01:09:32,050

1482
01:09:32,050 --> 01:09:34,130
>> SPIKA 1: Hasa, huna
kukumbuka wapi kuweka mambo ya ajabu.

1483
01:09:34,130 --> 01:09:37,670
Huna kwa kiholela kukumbuka
kuwa alama hisa katika mabano ni sifuri,

1484
01:09:37,670 --> 01:09:41,479
na bei ya hisa katika mabano ni moja,
ambayo ni hatari hasa kama wewe

1485
01:09:41,479 --> 01:09:43,220
kubadili mambo, hatimaye.

1486
01:09:43,220 --> 01:09:46,399
Ni kiasi nicer kujiunga
kile Tutamwita metadata

1487
01:09:46,399 --> 01:09:48,340
na data yako halisi.

1488
01:09:48,340 --> 01:09:52,399
Ningependa kusema kwamba kile sisi kweli huduma
kuhusu hapa ni fb na 49, 26.

1489
01:09:52,399 --> 01:09:57,020
ishara na bei ni metadata
kwamba inaeleza data sisi

1490
01:09:57,020 --> 01:09:58,180
kweli huduma ya juu.

1491
01:09:58,180 --> 01:10:01,910
Lakini hii ni kiasi tu
rahisi kupata.

1492
01:10:01,910 --> 01:10:04,090
>> Sasa, kama kando nini
bei ya sisi kulipa?

1493
01:10:04,090 --> 01:10:06,600
Tumekuwa kufanya hii
katika CS50 kwa wiki.

1494
01:10:06,600 --> 01:10:10,740
Hulka hii ni lazima kuja kwa gharama fulani.

1495
01:10:10,740 --> 01:10:11,350
Kumbukumbu.

1496
01:10:11,350 --> 01:10:13,830
Hivyo wewe si tu hifadhi ya 32-bit
integer, kwa mfano.

1497
01:10:13,830 --> 01:10:17,980
Wewe ni hifadhi ya alama / 0, pengine.

1498
01:10:17,980 --> 01:10:19,160
Hivyo wewe ni kutumia kumbukumbu zaidi.

1499
01:10:19,160 --> 01:10:22,540
>> Na nini utendaji wa
kuangalia kitu juu katika

1500
01:10:22,540 --> 01:10:24,822
associative safu, pengine?

1501
01:10:24,822 --> 01:10:26,590
Ni pengine polepole.

1502
01:10:26,590 --> 01:10:29,670
Upatikanaji random ni nzuri, hasa
wakati unaweza kufanya search mapacha.

1503
01:10:29,670 --> 01:10:33,380
Lakini kama wewe ni kweli sasa kuangalia si
kwa idadi, lakini kwa masharti, hii

1504
01:10:33,380 --> 01:10:37,630
kweli ni kutekelezwa chini ya
kofia, pengine kama meza hash, ambapo

1505
01:10:37,630 --> 01:10:42,950
kutumia ama meza hash
na chaining tofauti.

1506
01:10:42,950 --> 01:10:46,040
Au unaweza kutumia kujaribu kwa kweli
kuhifadhi maadili.

1507
01:10:46,040 --> 01:10:50,550
Hivyo labda unaweza kufanya wakati mara kwa mara, lakini
bado una kuangalia S-Y-M-B-O-L,

1508
01:10:50,550 --> 01:10:54,510
uwezekano, badala ya 32 tu
bits na kuangalia kitu juu.

1509
01:10:54,510 --> 01:10:58,430
Hivyo tena, wale mawazo sawa kuja
nyuma na kurudia katika hali hii.

1510
01:10:58,430 --> 01:11:02,120
>> Lakini tena, PHP sasa ina baadhi super
globals kwamba, ni zamu nje, ni

1511
01:11:02,120 --> 01:11:02,900
associative arrays.

1512
01:11:02,900 --> 01:11:05,590
Tumemwona mtu mmoja wakati iliyopita, $ _POST.

1513
01:11:05,590 --> 01:11:08,400
Na kwamba kimataifa super
ana funguo na maadili.

1514
01:11:08,400 --> 01:11:10,550
Hasa, funguo
line up na nini?

1515
01:11:10,550 --> 01:11:14,520
Wapi funguo katika _POST $ kuja kutoka?

1516
01:11:14,520 --> 01:11:15,380
Tu kwa kurejea?

1517
01:11:15,380 --> 01:11:16,480
>> Watazamaji: Jina.

1518
01:11:16,480 --> 01:11:17,900
>> SPIKA 1: Jina, wapi?

1519
01:11:17,900 --> 01:11:19,860
>> Watazamaji: [inaudible]

1520
01:11:19,860 --> 01:11:20,750
>> SPIKA 1: Jina ni sifa.

1521
01:11:20,750 --> 01:11:23,480
Vizuri ambapo, ambapo walivyofanya
awali kuja kutoka?

1522
01:11:23,480 --> 01:11:24,120
fomu.

1523
01:11:24,120 --> 01:11:30,140
Hivyo kama ana ukurasa HTML tag fomu,
ndani ya ambayo ni baadhi ya pembejeo, kama

1524
01:11:30,140 --> 01:11:34,760
kuangalia masanduku, masanduku ya maandishi, kushuka chini
menyu, ambayo kila mmoja ana jina, wale

1525
01:11:34,760 --> 01:11:40,260
majina kuishia kama funguo katika _POST $, na,
kusema ukweli, kwa jambo hilo, $ _GET.

1526
01:11:40,260 --> 01:11:42,130
Kama njia ni wa kupata, sawa wazo.

1527
01:11:42,130 --> 01:11:43,830
Ni tu katika tofauti super kimataifa.

1528
01:11:43,830 --> 01:11:47,620
Na maadili, bila shaka, kuja kutoka
chochote mtumiaji typed katika saa yake au

1529
01:11:47,620 --> 01:11:48,890
wake browser.

1530
01:11:48,890 --> 01:11:49,830
>> Lakini kuna wengine wachache.

1531
01:11:49,830 --> 01:11:52,140
Kuna kuki, ambayo tutaweza
kuja nyuma na hatimaye.

1532
01:11:52,140 --> 01:11:56,050
Lakini hayo ni mambo kwamba unajua
mtandao anatumia kwa baadhi ya mema au mabaya.

1533
01:11:56,050 --> 01:11:57,420
Lakini tutaweza kuja nyuma na kwamba.

1534
01:11:57,420 --> 01:12:01,720
Server na kikao, na wale wawili
kuwa baadhi ya matumizi maalum.

1535
01:12:01,720 --> 01:12:03,940
>> Lakini hebu tuangalie hii.

1536
01:12:03,940 --> 01:12:13,330
Hebu kwenda mbele na kufungua mfano
Hivyo kuitwa mvc0.php MVC

1537
01:12:13,330 --> 01:12:14,900
anasimama kwa zifuatazo.

1538
01:12:14,900 --> 01:12:19,390
Na sisi kuanzisha hii mapema zaidi ni
kawaida, kwa kweli, kupata wewe kubuni

1539
01:12:19,390 --> 01:12:22,180
Tatizo kuweka 7, na pia miradi ya mwisho,
katika aina ya sekta ya

1540
01:12:22,180 --> 01:12:23,670
kiwango njia, na njia safi.

1541
01:12:23,670 --> 01:12:24,820
Ni vizuri kubuni.

1542
01:12:24,820 --> 01:12:29,090
>> Hivyo wewe ni juu ya kuona, na utasikia
uzoefu, katika P seti 7, dhana, aina

1543
01:12:29,090 --> 01:12:32,260
ya mawazo ya programu, kwamba inaonekana
kitu kidogo kama hii.

1544
01:12:32,260 --> 01:12:35,570
M kwa ajili ya Model, C kwa Mdhibiti,
V kwa View.

1545
01:12:35,570 --> 01:12:39,690
Muda mrefu hadithi fupi, MVC ni aina tu
ya mbinu, njia ya kufanya

1546
01:12:39,690 --> 01:12:43,360
Nje, hasa, ambapo wewe
kuweka yote ya maneno yako, kijinga -

1547
01:12:43,360 --> 01:12:44,970
mantiki ya biashara -

1548
01:12:44,970 --> 01:12:49,710
wote wa mali yako miliki katika
kile kinachoitwa mtawala, faili

1549
01:12:49,710 --> 01:12:54,840
kama index.php, au tutaweza kuona,
quote.php, au buy.php.

1550
01:12:54,840 --> 01:12:59,570
>> Katika mazingira ya Matatizo ya seti 7, yako
mifano ya kawaida yana data yako,

1551
01:12:59,570 --> 01:13:03,860
kitu chochote kuhusiana na database, kama tutaweza
hatimaye kuona, na maoni yako

1552
01:13:03,860 --> 01:13:07,510
vyenye aesthetics ya yako
tovuti, HTML, CSS.

1553
01:13:07,510 --> 01:13:10,420
Hivyo sisi tayari aliona hii katika C kidogo
kidogo kwa kutumia. files h.

1554
01:13:10,420 --> 01:13:15,010
Sisi kwa kweli alipoona hayo wakati iliyopita na CSS,
na factoring stylization CSS

1555
01:13:15,010 --> 01:13:16,520
mambo ya nje ya HTML yetu.

1556
01:13:16,520 --> 01:13:20,730
>> Hivyo MVC ni kweli tu kuhusu kuchora
mistari katika mchanga na kusema,

1557
01:13:20,730 --> 01:13:25,400
kuvutia programu kanuni kwa ajili yako
tovuti ni katika kile Tutamwita

1558
01:13:25,400 --> 01:13:26,400
mtawala.

1559
01:13:26,400 --> 01:13:29,280
Mambo kuhusiana na database kawaida
kuishia katika mfano.

1560
01:13:29,280 --> 01:13:33,070
Lakini utaona, katika Tatizo seti 7, sisi
kuunganisha C na M kwa kuitunza rahisi.

1561
01:13:33,070 --> 01:13:37,630
Lakini mtazamo ni ambapo wote wa HTML yako
na aesthetics kawaida kwenda.

1562
01:13:37,630 --> 01:13:39,160
>> Hivyo nini maana ya hii katika hali halisi?

1563
01:13:39,160 --> 01:13:45,980
Naam, napenda kwenda katika MVC wetu
saraka kama ifuatavyo.

1564
01:13:45,980 --> 01:13:48,880
Na utaona zaidi ya haya
walitembelea kupitia katika spec.

1565
01:13:48,880 --> 01:13:53,200
Hivyo katika mvc0, mimi kudai kwamba hii ni, kama,
toleo 0 ya Nje CS50.

1566
01:13:53,200 --> 01:13:56,670
>> Wote sisi ni baadhi ya HTML, kama
kubwa h1 tag, inaonekana.

1567
01:13:56,670 --> 01:13:57,800
Na kisha orodha Vitone.

1568
01:13:57,800 --> 01:13:59,860
Sijawahi kuona orodha Vitone
kabla, lakini hakuna mpango mkubwa.

1569
01:13:59,860 --> 01:14:01,590
Hebu haraka kuangalia kanuni chanzo.

1570
01:14:01,590 --> 01:14:06,610
Zinageuka orodha unordered pamoja na risasi
ni wazi mabano ul kwa moja au

1571
01:14:06,610 --> 01:14:09,065
zaidi orodha ya vitu, li.

1572
01:14:09,065 --> 01:14:10,650
Hivyo hapa ni ilani tag nanga.

1573
01:14:10,650 --> 01:14:12,130
Tuliona kwamba wakati iliyopita.

1574
01:14:12,130 --> 01:14:13,810
>> Hivyo hii ni jinsi mimi kutekelezwa
ukurasa huu.

1575
01:14:13,810 --> 01:14:18,460
Mimi nimepata viungo wawili, wawili orodha ya vitu, mmoja
ul kwa ajili ya orodha unordered, na mwisho

1576
01:14:18,460 --> 01:14:22,700
matokeo, aesthetically, hii ni sana
pretty tovuti, toleo 0 hapa.

1577
01:14:22,700 --> 01:14:26,840
Lakini nini kuvutia sasa ni jinsi hii
ni kutekelezwa chini ya Hood.

1578
01:14:26,840 --> 01:14:33,590
>> Hebu kwenda katika gedit na kufungua hii
kwanza kabisa mfano wa kuchora picha.

1579
01:14:33,590 --> 01:14:37,070
Na tutaweza kuangalia nini kiujanja,
uwezekano, katika hapa.

1580
01:14:37,070 --> 01:14:43,260
Sasa kama mimi kwenda katika localhost, umma,
MVC, taarifa files chache.

1581
01:14:43,260 --> 01:14:45,780
Mimi naenda kuwaita haya, kwa
sasa, kila controllers.

1582
01:14:45,780 --> 01:14:48,640
Lakini hiyo ni kidogo ya unyanyasaji kwa sababu
utaona kila kitu ni commingled

1583
01:14:48,640 --> 01:14:49,620
ndani mwao.

1584
01:14:49,620 --> 01:14:52,330
>> Na napenda kwenda ndani ya index.php.

1585
01:14:52,330 --> 01:14:54,700
Na sisi kuona, literally, HTML sawa.

1586
01:14:54,700 --> 01:14:57,970
Hivyo hata kama faili hili mwisho katika
. Php, Haina maana ina

1587
01:14:57,970 --> 01:14:59,500
yoyote ya kanuni PHP.

1588
01:14:59,500 --> 01:15:02,290
Inaweza tu kuwa mbichi HTML, ingawa
hiyo ni aina ya silly.

1589
01:15:02,290 --> 01:15:07,650
Lakini taarifa hakuna wazi mabano PHP
tag, ila kwa ajili hii, ambayo, kusema ukweli,

1590
01:15:07,650 --> 01:15:09,160
ni pale tu kutumika kama maoni.

1591
01:15:09,160 --> 01:15:12,080
Lakini hiyo ni functionally si
hata kuwa ya kuvutia.

1592
01:15:12,080 --> 01:15:12,960
>> Lakini taarifa hii.

1593
01:15:12,960 --> 01:15:15,400
Nini kuvutia sasa ni nini
mabadiliko kwenye ukurasa huu.

1594
01:15:15,400 --> 01:15:16,650
Hebu bonyeza Mihadhara.

1595
01:15:16,650 --> 01:15:18,560
Na taarifa ya URL ni juu ya mabadiliko.

1596
01:15:18,560 --> 01:15:20,930
Sasa mimi nina katika lectures.php.

1597
01:15:20,930 --> 01:15:22,630
Hebu bonyeza sifuri.

1598
01:15:22,630 --> 01:15:27,200
Sasa mimi nina katika week0.php Na sasa basi
mimi kufungua files hizi katika gedit.

1599
01:15:27,200 --> 01:15:30,120
Si tu index, lakini basi
mimi kufungua mihadhara.

1600
01:15:30,120 --> 01:15:33,900
Na napenda kujikwamua maoni
kuzingatia sehemu hii tu.

1601
01:15:33,900 --> 01:15:37,680
>> Na sasa napenda kufungua moja tu zaidi,
week0.php, kutupa maoni,

1602
01:15:37,680 --> 01:15:39,910
tu ya kusafisha hii up.

1603
01:15:39,910 --> 01:15:41,720
Na sasa taarifa ifuatayo.

1604
01:15:41,720 --> 01:15:47,340
Kufikiri kweli ni aina ya makini kuhusu
kubuni, na hebu kufanya hivyo line

1605
01:15:47,340 --> 01:15:52,013
hadi huo, nini kifanyike
bora hapa, unafikiri?

1606
01:15:52,013 --> 01:15:56,450

1607
01:15:56,450 --> 01:15:57,780
>> Jinsi gani mimi kufanya moja kwa wiki?

1608
01:15:57,780 --> 01:15:58,480
Vipi kuhusu hili.

1609
01:15:58,480 --> 01:16:00,450
Hivyo hii ni jinsi mimi alifanya wiki moja.

1610
01:16:00,450 --> 01:16:08,290
Nilipokwenda Picha, New, Kuweka, Ila,
week1.php, na kisha nilikwenda katika hapa.

1611
01:16:08,290 --> 01:16:09,875
Na mimi iliyopita moja -

1612
01:16:09,875 --> 01:16:11,646
nini ilikuwa hii, moja hadi Ijumaa.

1613
01:16:11,646 --> 01:16:14,430

1614
01:16:14,430 --> 01:16:15,810
Mimi iliyopita zeros kwa moja.

1615
01:16:15,810 --> 01:16:17,150
Mimi iliyopita hii kwa moja.

1616
01:16:17,150 --> 01:16:20,350
>> OK, hivyo sasa tuangalie files yangu.

1617
01:16:20,350 --> 01:16:22,100
Nini kifanyike tofauti?

1618
01:16:22,100 --> 01:16:25,310
Ambapo ni fursa, labda?

1619
01:16:25,310 --> 01:16:28,330
Hivyo kuna fursa ya kuanza
factoring mambo haya nje.

1620
01:16:28,330 --> 01:16:32,950
Basi mimi kufungua, kama spoiler, kwa
nini utaona katika P seti 7.

1621
01:16:32,950 --> 01:16:38,750
Kama mimi kufungua, sasa, index.php katika toleo
tano ya hii, inaonekana ni njia

1622
01:16:38,750 --> 01:16:40,730
zaidi fumbo, admittedly.

1623
01:16:40,730 --> 01:16:43,710
>> Lakini hii, sasa, ni kile Mimi nitakuita
mtawala hiyo ni kudhibiti

1624
01:16:43,710 --> 01:16:44,770
mantiki ya ukurasa wangu.

1625
01:16:44,770 --> 01:16:48,510
Na unaweza aina ya upya,
shirikishi, labda, nini kinaendelea.

1626
01:16:48,510 --> 01:16:50,630
Juu ya mstari wa kwanza, ni
kidogo fumbo.

1627
01:16:50,630 --> 01:16:54,040
Lakini taarifa mimi nina wanaohitaji, kama na
mkali pamoja, faili inayoitwa

1628
01:16:54,040 --> 01:16:55,930
helpers.php.

1629
01:16:55,930 --> 01:16:59,980
Na kisha mimi nina wito, inaonekana,
kazi, aitwaye asimlipe, kupita katika

1630
01:16:59,980 --> 01:17:00,850
hoja mbili.

1631
01:17:00,850 --> 01:17:02,440
>> Moja ni quote unquote, header.

1632
01:17:02,440 --> 01:17:04,800
Na nyingine ni, aina gani ya
data aina ni hii, makao

1633
01:17:04,800 --> 01:17:07,180
juu ya syntax yetu mapema?

1634
01:17:07,180 --> 01:17:08,160
Ni safu ya kuhusishwa.

1635
01:17:08,160 --> 01:17:11,730
Hasa, ni kupita katika cheo
pamoja na baadhi ya metadata kwamba kuwakumbusha

1636
01:17:11,730 --> 01:17:13,430
yangu ni nini na thamani yake.

1637
01:17:13,430 --> 01:17:16,340
Kisha naona ngumu coded
ul, hivyo baadhi ya HTML ghafi.

1638
01:17:16,340 --> 01:17:20,020
Lakini basi mimi nina nyuma katika hali ya PHP
wito asimlipe kazi.

1639
01:17:20,020 --> 01:17:24,390
Hivyo hata kama wewe sijawahi kutumika HTML au PHP
kabla, na hata ingawa hii inaonekana

1640
01:17:24,390 --> 01:17:27,480
scarier, ni kwa nini hii pengine
bora design?

1641
01:17:27,480 --> 01:17:31,310
Nini bora kuhusu hilo,
msingi inference?

1642
01:17:31,310 --> 01:17:32,130
>> Watazamaji: [inaudible]

1643
01:17:32,130 --> 01:17:35,750
>> SPIKA 1: Chini redundant kwa kuwa
hakuna tag zaidi HTML, hakuna zaidi

1644
01:17:35,750 --> 01:17:38,410
vichwa tag, hakuna zaidi ya mwili tag
katika kila faili damn.

1645
01:17:38,410 --> 01:17:41,860
Badala yake, nimekuwa zitawekwa nje
commonalities na pengine kuziweka

1646
01:17:41,860 --> 01:17:45,150
katika faili namna fulani kuhusiana
kwa kichwa.

1647
01:17:45,150 --> 01:17:48,500
Na kitu kimoja kwa ajili ya mwili wa karibu
tag, karibu HTML tag.

1648
01:17:48,500 --> 01:17:52,165
Kwamba pengine chini hapa ndani
ya mahali fulani footer.

1649
01:17:52,165 --> 01:17:57,050
Na utaona, katika Tatizo seti 7,
ziara kidogo kwa njia hii.

1650
01:17:57,050 --> 01:17:58,070
>> Hivyo kile uongo mbele?

1651
01:17:58,070 --> 01:18:03,390
jambo moja kuwa hatuna uwezo
lakini kwa kweli ni kuhifadhi data.

1652
01:18:03,390 --> 01:18:06,110
Na hivyo kile tutaweza kuanza kuona
Jumatano, kwa mfano, ni kwamba yako

1653
01:18:06,110 --> 01:18:08,450
rafiki wa zamani Excel, au namba,
utapata kuhifadhi kura ya

1654
01:18:08,450 --> 01:18:10,060
data katika safu na nguzo.

1655
01:18:10,060 --> 01:18:12,570
Zamu nje unaweza kufanya hivyo katika nini
inayoitwa database, programmatically.

1656
01:18:12,570 --> 01:18:16,620
manic Na zinageuka, baada ya kuwa,
tutaweza kuwa na uwezo wa kuhifadhi vitu kama

1657
01:18:16,620 --> 01:18:20,550
hii, ambayo utaona tena katika kuweka P
7, kundi zima la majina ya watumiaji na

1658
01:18:20,550 --> 01:18:23,690
nywila, mwisho ambayo ni ya
kweli encrypted, kama wao kiasi

1659
01:18:23,690 --> 01:18:25,550
walikuwa katika hacker toleo P kuweka 2 ya.

1660
01:18:25,550 --> 01:18:29,600
Na hatimaye, itabidi kutekeleza mpango huu,
eTrade-kama yako mwenyewe tovuti ya kwamba

1661
01:18:29,600 --> 01:18:32,220
kutekeleza kwa pamoja CS50 fedha.

1662
01:18:32,220 --> 01:18:36,000
>> Mwisho, tangu wewe kukaa hapa ili marehemu
leo, kama wewe kuja nyuma ya sehemu hii

1663
01:18:36,000 --> 01:18:41,120
ya chuo hicho, saa 4:00 leo, sisi
kukupa si tu ushauri, saa SCES

1664
01:18:41,120 --> 01:18:44,200
Kushauri Fair, saa 4:00 jioni katika
Maxwell-Dworkin, tutaweza kutoa baadhi ya

1665
01:18:44,200 --> 01:18:47,470
Americone Dream, Cherry Garcia,
Chocolate Fudge Brownie, Chocolate

1666
01:18:47,470 --> 01:18:50,840
Chip Cookie Kinyunga, na, wakati wewe Google
Monkey chunky, unaweza kupata hii.

1667
01:18:50,840 --> 01:18:53,620
Hivyo wote wa kwamba watapata saa 4:00
Jioni katika Maxwell-Dworkin.

1668
01:18:53,620 --> 01:18:56,736
Kuona juu ya Jumatano pia.

1669
01:18:56,736 --> 01:18:59,960
>> SPIKA 2: Wakati ujao
CS50, RJ kulala in

1670
01:18:59,960 --> 01:19:03,656

1671
01:19:03,656 --> 01:19:04,906
>> RJ: Sehemu wangu!

1672
01:19:04,906 --> 01:19:07,727

1673
01:19:07,727 --> 01:19:08,977
Ha!

1674
01:19:08,977 --> 01:19:12,056

1675
01:19:12,056 --> 01:19:13,306
Oh,

1676
01:19:13,306 --> 01:19:16,374