1
00:00:00,000 --> 00:00:04,410
>> [Music kucheza]

2
00:00:04,410 --> 00:00:12,250

3
00:00:12,250 --> 00:00:15,770
>> SPIKA 1: Hii ni CS50 na
hii ni mwisho wa wiki saba.

4
00:00:15,770 --> 00:00:20,240
Leo ni labda ambapo sisi
kweli lugha kufundisha.

5
00:00:20,240 --> 00:00:24,100
Sisi ilianzisha katika michache iliyopita
wiki HTML na CSS, wala ambayo

6
00:00:24,100 --> 00:00:25,240
ni lugha ya programu.

7
00:00:25,240 --> 00:00:28,600
Na hakika, hata kama hatukuwa
kuangalia karibu wote wa vitambulisho

8
00:00:28,600 --> 00:00:33,410
kwamba HTML kuja na na karibu wote
ya mali ambazo CSS kuja na,

9
00:00:33,410 --> 00:00:35,007
hiyo ni aina ya ni kwa HTML na CSS.

10
00:00:35,007 --> 00:00:36,840
Tutaweza tu kwa ujumla
kuanza kuchukua kwamba wewe

11
00:00:36,840 --> 00:00:39,545
kuelewa mawazo ya jumla
ya vitambulisho, na sifa,

12
00:00:39,545 --> 00:00:41,850
na kurasa kupelekwa
kutoka kwa mteja na server.

13
00:00:41,850 --> 00:00:45,280
>> Kwa sababu leo ​​sisi kuanza kuangalia
mwingine lugha ya programu, PHP.

14
00:00:45,280 --> 00:00:47,110
Tunakwenda kufanya hivyo super haraka.

15
00:00:47,110 --> 00:00:50,910
Sisi siyo kwenda kufundisha PHP per se,
kiasi kama hatukuwa kutamani kufundisha

16
00:00:50,910 --> 00:00:52,670
C, per se, lakini badala ya programu.

17
00:00:52,670 --> 00:00:55,088
Na hakika, mojawapo ya
malengo kwa kozi hii

18
00:00:55,088 --> 00:00:57,820
si kufundisha C,
au HTML, CSS au, au PHP,

19
00:00:57,820 --> 00:01:00,370
au idadi yoyote ya wengine
Maneno buzz au Vifupisho,

20
00:01:00,370 --> 00:01:03,097
bali sayansi ya kompyuta
na jinsi ya mpango kimsingi.

21
00:01:03,097 --> 00:01:05,930
Na hakika, leo sisi kuanza kuchukua
magurudumu wale mafunzo mbali yote

22
00:01:05,930 --> 00:01:10,600
zaidi kwa akiruka
lugha inayoitwa PHP, kama ifuatavyo.

23
00:01:10,600 --> 00:01:13,640
>> Hapa ni nini lugha hii inaonekana kama.

24
00:01:13,640 --> 00:01:17,790
Ni zinageuka kuwa hakuna haja kwa
Kazi kuu katika mpango imeandikwa

25
00:01:17,790 --> 00:01:19,470
katika lugha inayoitwa PHP.

26
00:01:19,470 --> 00:01:22,585
Hivyo kwamba tayari sauti kidogo rahisi
kuliko C, ambayo sisi ni ukoo.

27
00:01:22,585 --> 00:01:25,370
Ni zinageuka kuwa kama wewe
wanataka kutangaza kutofautiana,

28
00:01:25,370 --> 00:01:29,470
kufanya hivyo karibu identically kwa C. Lakini
kuna wazi tofauti moja hapa

29
00:01:29,470 --> 00:01:31,850
wakati mimi kutangaza kamba,
au labda tofauti hizo mbili.

30
00:01:31,850 --> 00:01:32,725
Kile kinachoonekana tofauti?

31
00:01:32,725 --> 00:01:35,810

32
00:01:35,810 --> 00:01:37,160
>> Watazamaji: ishara ya dola.

33
00:01:37,160 --> 00:01:39,951
>> SPIKA 1: Ndiyo, kuna dola
ishara, ambayo sisi sijawahi kuona mbele.

34
00:01:39,951 --> 00:01:41,451
Na nini ni kukosa?

35
00:01:41,451 --> 00:01:41,950
Yeah?

36
00:01:41,950 --> 00:01:42,820
>> Watazamaji: [inaudible]

37
00:01:42,820 --> 00:01:44,403
>> SPIKA 1: Yeah, hakuna aina data.

38
00:01:44,403 --> 00:01:48,410
Hivyo zinageuka kuwa PHP ni nini sisi
piga lugha loosely typed, ambapo

39
00:01:48,410 --> 00:01:49,959
C ni nguvu typed.

40
00:01:49,959 --> 00:01:52,500
Loosely typed tu ina maana kwamba
kuna aina tofauti data,

41
00:01:52,500 --> 00:01:54,470
kuna masharti, na ints, na ikifungwa.

42
00:01:54,470 --> 00:01:56,330
Lakini takwimu kompyuta ambayo nje.

43
00:01:56,330 --> 00:01:58,664
Wewe programu binadamu
huna takwimu nje.

44
00:01:58,664 --> 00:02:00,580
Basi wote una kufanya
kutangaza kutofautiana ni

45
00:02:00,580 --> 00:02:03,220
dola ishara, jina la yako
kutofautiana, na kisha, kwa mfano,

46
00:02:03,220 --> 00:02:04,760
quote unquote, hello dunia.

47
00:02:04,760 --> 00:02:07,662
>> Naam hii ni nini
hali inaonekana kama katika PHP.

48
00:02:07,662 --> 00:02:08,328
Tofauti yoyote?

49
00:02:08,328 --> 00:02:10,650

50
00:02:10,650 --> 00:02:11,150
Hakuna

51
00:02:11,150 --> 00:02:12,540
Hivyo ni zamu nje hizi ni sawa.

52
00:02:12,540 --> 00:02:14,665
Na unaweza kuwa na wachache
matawi au matawi zaidi,

53
00:02:14,665 --> 00:02:16,557
lakini syntax zamu
nje sawa.

54
00:02:16,557 --> 00:02:18,390
Maneno Boolean Unaweza
kuagizwa kwa pamoja.

55
00:02:18,390 --> 00:02:20,400
Maneno Boolean
inaweza anded pamoja.

56
00:02:20,400 --> 00:02:21,430
Bado una swichi.

57
00:02:21,430 --> 00:02:23,790
Hata kama wewe si kutumika
haya, hizi zipo katika C

58
00:02:23,790 --> 00:02:26,020
na wao uko functionally
sawa katika PHP.

59
00:02:26,020 --> 00:02:28,260
>> Na kwa kweli, katika PHP wao uko
kidogo nguvu zaidi.

60
00:02:28,260 --> 00:02:32,540
Katika C, unaweza tu kulinganisha fulani
aina ya data kama ints na chars,

61
00:02:32,540 --> 00:02:36,320
ambapo katika PHP unaweza kweli kulinganisha
masharti kamili fledge bila ya kuwa

62
00:02:36,320 --> 00:02:38,460
na wasiwasi kuhusu kuyatumia na kadhalika.

63
00:02:38,460 --> 00:02:39,430
Hivyo hapa ni kwa kitanzi.

64
00:02:39,430 --> 00:02:41,270
Hii ni pseudocode tu
kanuni, kama wewe.

65
00:02:41,270 --> 00:02:43,400
Lakini kimuundo ni sawa na C.

66
00:02:43,400 --> 00:02:47,520
>> Hapa ni kitanzi wakati, pseudocode
therefore-- kufanana na C.

67
00:02:47,520 --> 00:02:49,390
Hapa ni kufanya wakati loop-- kufanana.

68
00:02:49,390 --> 00:02:51,390
Na hivyo pale aina ya
mfano huu hapa ambapo

69
00:02:51,390 --> 00:02:54,400
kuna wengine wachache kisintaksia
makala tuko kweli kwenda kuona.

70
00:02:54,400 --> 00:02:57,340
Kwa kweli, hapa ni nzuri
njia katika PHP ambapo,

71
00:02:57,340 --> 00:02:59,350
kama unataka iterate
juu ya safu, na wewe

72
00:02:59,350 --> 00:03:02,309
hawataki kuruka kupitia
akili na kisintaksia hoops ya kuwa na

73
00:03:02,309 --> 00:03:05,178
int i sawa 0, i chini
kuliko n, i pamoja plus-- ambayo

74
00:03:05,178 --> 00:03:07,040
ni tu mengi ya annoying syntax.

75
00:03:07,040 --> 00:03:10,654
Unaweza kusema zaidi kidogo
fluidly kwa kila idadi

76
00:03:10,654 --> 00:03:13,320
kama idadi, ambapo katika kesi hii
dola ishara idadi, mimi nina kuchukua,

77
00:03:13,320 --> 00:03:15,400
ni kama safu kuitwa namba.

78
00:03:15,400 --> 00:03:18,810
Na kisha mimi nina kuchukua idadi,
umoja, ni kwenda kuwa kutofautiana.

79
00:03:18,810 --> 00:03:22,940
>> Na nini PHP atafanya kwa ajili yangu kama mimi iterate
zaidi ya kitanzi hii ni, juu ya kila iteration,

80
00:03:22,940 --> 00:03:28,450
itakuja update idadi kutofautiana kwa
kuwa ith kipengele katika idadi, wingi.

81
00:03:28,450 --> 00:03:30,060
Hivyo kinafanya tu yote hayo kwa ajili yangu.

82
00:03:30,060 --> 00:03:32,750
Hakuna mabano mraba, hakuna
dola ishara, hakuna nusu colons.

83
00:03:32,750 --> 00:03:34,117
Ni tu kidogo rahisi.

84
00:03:34,117 --> 00:03:35,950
Naam, kama unataka
safu, zinageuka wewe

85
00:03:35,950 --> 00:03:38,908
wanaweza kufanya kitu pretty sawa na
C. syntax ni tofauti kidogo.

86
00:03:38,908 --> 00:03:41,000
Lakini hapa ni safu kuitwa
dola saini namba.

87
00:03:41,000 --> 00:03:44,261
Na mimi kutumia, katika PHP, mraba
mabano, ni zamu nje.

88
00:03:44,261 --> 00:03:47,260
Na tunakwenda kuona haya tena
katika JavaScript-- bado lugha nyingine.

89
00:03:47,260 --> 00:03:49,968
I just kutumia mraba bracket nukuu
kuwa na comma kutengwa orodha

90
00:03:49,968 --> 00:03:51,530
integers, katika kesi hii.

91
00:03:51,530 --> 00:03:53,010
Lakini kwamba anatoa mimi safu.

92
00:03:53,010 --> 00:03:56,270
>> Lakini hata nguvu zaidi katika PHP,
sisi pia kuwa kile kwa ujumla

93
00:03:56,270 --> 00:03:57,640
aitwaye associative arrays.

94
00:03:57,640 --> 00:03:59,540
Na mengi ya lugha
na kama haya vizuri.

95
00:03:59,540 --> 00:04:03,810
Jambo kuhusu arrays C
ni kwamba bahati

96
00:04:03,810 --> 00:04:06,940
kwa safu, jambo ambalo wewe
kutumia katika mabano mraba kupitia ambayo

97
00:04:06,940 --> 00:04:08,600
upatikanaji vipengele, lazima nini?

98
00:04:08,600 --> 00:04:10,620
>> Watazamaji: [inaudible]

99
00:04:10,620 --> 00:04:14,220
>> SPIKA 1: Wanapaswa kuwa idadi au
integers, hasa kutoka sifuri juu ya juu.

100
00:04:14,220 --> 00:04:17,140
Naam, katika PHP, na, ni zamu
nje, katika lugha nyingine,

101
00:04:17,140 --> 00:04:20,820
unaweza kuanza na
bahati ambayo si nambari.

102
00:04:20,820 --> 00:04:23,880
Lakini wao ni kweli maneno au
maneno, ili badala ya

103
00:04:23,880 --> 00:04:27,070
kujaribu kukumbuka ambapo kitu
ni, au kuhifadhiwa katika i kutofautiana,

104
00:04:27,070 --> 00:04:31,720
unaweza kweli kutumia neno na kusema
that-- unaweza kusema neno kama hili.

105
00:04:31,720 --> 00:04:34,730
>> Hivyo ishara ya dola kunukuu ni
jina la kutofautiana hapa.

106
00:04:34,730 --> 00:04:39,360
Hii ni kiasi fulani funky syntax
hiyo ni kujihusisha thamani mawili muhimu

107
00:04:39,360 --> 00:04:41,250
jozi kwa kutofautiana hii.

108
00:04:41,250 --> 00:04:45,490
Hasa, hii ni kunipa
safu kwamba ni ya urefu 2.

109
00:04:45,490 --> 00:04:47,660
Lakini bahati si 0 na 1.

110
00:04:47,660 --> 00:04:51,250
Bahati ni quote unquote
ishara na quote unquote bei.

111
00:04:51,250 --> 00:04:55,990
Na maadili ya bahati hizo,
mtiririko huo, ni FB for Facebook

112
00:04:55,990 --> 00:05:00,360
na $ 79.53, wakati mimi mara ya mwisho
kuchunguzwa bei kwa hili.

113
00:05:00,360 --> 00:05:01,210
>> Hiyo ina maana gani?

114
00:05:01,210 --> 00:05:04,136
Vizuri, ina maana kwamba
badala ya kuandika kificho

115
00:05:04,136 --> 00:05:09,612
kama hii, ambapo mimi kutumika kufanya kitu
kama dola sign-- au tuseme, katika C

116
00:05:09,612 --> 00:05:11,070
Mimi bila hata kuwa na ishara ya dola.

117
00:05:11,070 --> 00:05:13,490
Napenda kufanya kitu
kama quotes na kisha

118
00:05:13,490 --> 00:05:18,410
Napenda kufanya mabano i kupata baadhi
kiholela numerically indexed thamani.

119
00:05:18,410 --> 00:05:21,430
Kuanzia leo katika PHP, kama wewe
wanataka kupata katika baadhi ya thamani,

120
00:05:21,430 --> 00:05:24,742
sisi aina ya kuwa na zaidi
semantic expressiveness.

121
00:05:24,742 --> 00:05:27,450
Tu njia dhana ya kusema tunaweza
wito tu mambo nini hao.

122
00:05:27,450 --> 00:05:29,800
>> Na kama unataka kupata
katika kitu ishara,

123
00:05:29,800 --> 00:05:32,180
sasa wewe literally kufanya
ishara unquote kunukuu

124
00:05:32,180 --> 00:05:34,910
katika mabano mraba
badala ya idadi tu.

125
00:05:34,910 --> 00:05:36,450
Hivyo ni urahisi nzuri.

126
00:05:36,450 --> 00:05:38,140
Na hiyo ni aina ya yake kwa sasa.

127
00:05:38,140 --> 00:05:40,240
Kuna mashada ya
makala nyingine katika PHP.

128
00:05:40,240 --> 00:05:43,180
Na hakika, PHP kuja na
proverbial kuzama jikoni.

129
00:05:43,180 --> 00:05:48,640
Kadhaa, mamia ya kazi kuja na
PHP-- wengi zaidi alikuja na C.

130
00:05:48,640 --> 00:05:51,360
>> Na kwamba si nia ya
overwhelm bali kuwasaidia

131
00:05:51,360 --> 00:05:53,900
wewe kutambua kwamba hatuna
tena kuwa na kuandika kanuni

132
00:05:53,900 --> 00:05:55,590
hiyo ni aina ya chini hapa conceptually.

133
00:05:55,590 --> 00:05:58,465
Sasa tunaweza kuanza tu kuchukua faida
sifa za zaidi ya juu

134
00:05:58,465 --> 00:05:59,920
kwamba lugha kama PHP nayo.

135
00:05:59,920 --> 00:06:02,630
Hivyo hatuna wasiwasi kuhusu
kusonga mambo kote katika kumbukumbu.

136
00:06:02,630 --> 00:06:05,338
Hatuna wasiwasi kuhusu malloc
na wote wa ngazi hizo za chini,

137
00:06:05,338 --> 00:06:09,390
maelezo yenye nguvu ambayo itakuwa kushindana wewe
pamoja, kama si mapambano na, pset5,

138
00:06:09,390 --> 00:06:13,380
lakini unaweza kuanza
Mara kuchukua kwa nafasi.

139
00:06:13,380 --> 00:06:17,770
>> Kwa kweli, hebu kuandika super
rahisi mpango katika PHP, kama ifuatavyo.

140
00:06:17,770 --> 00:06:21,550
Mimi nina kwenda kichwa katika CS50
IDE hapa, na kile Mimi naenda kufanya

141
00:06:21,550 --> 00:06:29,370
ni kuunda faili mpya, kwamba sana tu
ni kwenda kuitwa hodi nukta PHP.

142
00:06:29,370 --> 00:06:31,860
Hivyo badala ya nukta c, ni
kwenda kuitwa nukta PHP.

143
00:06:31,860 --> 00:06:34,260
Na kisha katika faili hili,
Siwezi kuanza kuandika.

144
00:06:34,260 --> 00:06:36,960
Lakini zinageuka kuwa
Jambo moja nina kujua

145
00:06:36,960 --> 00:06:41,470
ni kwamba faili yoyote PHP kwa ujumla, mahitaji
kuanza na baadhi syntax maalum.

146
00:06:41,470 --> 00:06:44,570
Sawa katika roho kwa HTML, lakini tena,
PHP ni lugha ya programu, si

147
00:06:44,570 --> 00:06:45,590
ghafi lugha.

148
00:06:45,590 --> 00:06:48,700
>> Hivyo kila faili, na ni aina
ya kijinga kuangalia mimi itabidi kukubali.

149
00:06:48,700 --> 00:06:50,480
Open mabano, swali alama, PHP.

150
00:06:50,480 --> 00:06:53,060
Na kwamba tu
njia lugha ya kusema,

151
00:06:53,060 --> 00:06:58,400
hey, kompyuta hiyo inakuja baadhi ya kanuni
Imeandikwa katika lugha inayoitwa PHP.

152
00:06:58,400 --> 00:07:01,900
Na kisha katika mwisho wa faili yako,
kufanya aina ya aina ya kinyume.

153
00:07:01,900 --> 00:07:04,860
Huwezi kuandika PHP tena, wewe tu
kufanya swali chapa, pembe mabano.

154
00:07:04,860 --> 00:07:08,500
Na kisha kitu chochote kuweka ndani ya
ya vitambulisho hizi mbili, hivyo kusema,

155
00:07:08,500 --> 00:07:11,490
itakuwa, au lazima, kanuni PHP.

156
00:07:11,490 --> 00:07:13,180
>> Basi hebu kufanya kitu super rahisi.

157
00:07:13,180 --> 00:07:19,370
Mimi nina kwenda mbele na kufanya magazeti
def, hujambo dunia, backslash n, kuokoa.

158
00:07:19,370 --> 00:07:27,310
Na sasa katika haraka yangu, mimi nina kwenda kwa
kufanya, kufanya hujambo hapana, mimi nina kwenda kufanya,

159
00:07:27,310 --> 00:07:28,726
dot kufyeka hodi.

160
00:07:28,726 --> 00:07:31,250
Hakuna, dot slash, hm.

161
00:07:31,250 --> 00:07:32,990
Hivyo kitu tofauti.

162
00:07:32,990 --> 00:07:36,920
Na hakika, huu ni tofauti muhimu
kati ya PHP na lugha kama C. C

163
00:07:36,920 --> 00:07:38,730
ilikuwa kinachojulikana ulioandaliwa lugha.

164
00:07:38,730 --> 00:07:40,929
Nini maana ya C kuwa ulioandaliwa?

165
00:07:40,929 --> 00:07:41,970
Ilikuwa na maana gani?

166
00:07:41,970 --> 00:07:42,898
Naam.

167
00:07:42,898 --> 00:07:45,220
>> Watazamaji: Aliyeandika ni katika mashine kificho
hivyo inaweza kuwa na kukimbia na kompyuta.

168
00:07:45,220 --> 00:07:46,011
>> SPIKA 1: Hasa.

169
00:07:46,011 --> 00:07:49,075
Tuna kwanza kubadili kwenye
kinachojulikana mashine kificho, zeros na ndio,

170
00:07:49,075 --> 00:07:51,950
kabla itakuwa kweli kuwa kutekelezwa
na kueleweka kwa kompyuta.

171
00:07:51,950 --> 00:07:52,840
By Intel ndani.

172
00:07:52,840 --> 00:07:54,530
By CPU ndani ya kompyuta.

173
00:07:54,530 --> 00:07:58,170
PHP, kwa kulinganisha, ni kile kinachoitwa
lugha kufasiriwa, ambayo

174
00:07:58,170 --> 00:08:02,230
ina maana kwamba huna kukusanya ni
ndani ya zeros na ndio, mashine kificho,

175
00:08:02,230 --> 00:08:04,360
wewe badala kuondoka kama chanzo kanuni.

176
00:08:04,360 --> 00:08:08,130
Na wewe badala kuupitisha kama pembejeo
kwa mpango, mkalimani

177
00:08:08,130 --> 00:08:11,960
kuwa mtu mwingine ameandika
miaka iliyopita kwamba kulielewa

178
00:08:11,960 --> 00:08:14,310
mstari kwa mstari, tabia ya tabia.

179
00:08:14,310 --> 00:08:16,120
Hivyo kwa maneno mengine,
binadamu huko nje aliandika

180
00:08:16,120 --> 00:08:19,670
mpango huo utaangalia
katika mstari yako kificho kwa mstari,

181
00:08:19,670 --> 00:08:21,680
na kufikiri nini
kompyuta ni lazima kufanya,

182
00:08:21,680 --> 00:08:25,960
bila kuwabadili
moja kwa moja kwa zeros na ndio.

183
00:08:25,960 --> 00:08:28,370
>> Hivyo kama anaona kwa kitanzi,
hii kinachojulikana mkalimani

184
00:08:28,370 --> 00:08:30,630
ni kwenda kuwa kama, sawa, mimi lazima
kufanya kitu tena na tena na tena.

185
00:08:30,630 --> 00:08:31,150
Nifanye nini?

186
00:08:31,150 --> 00:08:32,159
Napenda kuangalia mstari wa pili.

187
00:08:32,159 --> 00:08:33,367
Napenda kuangalia mstari wa pili.

188
00:08:33,367 --> 00:08:35,350
Na kweli anatafsiri yake mstari kwa mstari.

189
00:08:35,350 --> 00:08:37,220
Hivyo nitafanya hivyo, mimi si kutumia kufanya.

190
00:08:37,220 --> 00:08:39,409
Mimi si kutumia dot slash katika kesi hii.

191
00:08:39,409 --> 00:08:43,530
Mimi badala kufanya PHP, ambayo ni
jina la mpango, a.k.a.

192
00:08:43,530 --> 00:08:46,562
Mkalimani, hiyo ni
kabla ya imewekwa katika CS50 IDE,

193
00:08:46,562 --> 00:08:48,770
na sasa mimi unahitaji kupita
mstari amri hoja, ambayo

194
00:08:48,770 --> 00:08:52,290
ni rahisi kabisa jina la
faili kwamba mimi nataka kutafsiri.

195
00:08:52,290 --> 00:08:54,740
Au zaidi kawaida, kwamba nataka kukimbia.

196
00:08:54,740 --> 00:08:57,000
Na kama mimi hit Enter, kuna sisi kuwa nayo.

197
00:08:57,000 --> 00:08:57,825
Salamu, Dunia.

198
00:08:57,825 --> 00:08:59,950
Sasa ni zamu nje kwamba mimi
kutumika magazeti def makusudi

199
00:08:59,950 --> 00:09:01,600
kuziba sisi kutoka C kwa PHP.

200
00:09:01,600 --> 00:09:05,150
Wengi PHP programmers, kama utaona,
hawana hata bother kutumia magazeti def.

201
00:09:05,150 --> 00:09:08,290
Wao tu kutumia kazi kuitwa
magazeti, ambayo C hawakuwa na.

202
00:09:08,290 --> 00:09:11,390
Na hivyo kama mimi rerun sasa, ni kweli
kutenda functionally sawa.

203
00:09:11,390 --> 00:09:13,730
Siwezi kutumia asilimia s
na asilimia i na kadhalika,

204
00:09:13,730 --> 00:09:16,250
lakini kuna njia nyingine
katika PHP wa kufanya hivyo.

205
00:09:16,250 --> 00:09:18,100
Lakini hii ni kwa
kusema kwamba syntactically,

206
00:09:18,100 --> 00:09:21,850
zaidi ya baadhi ya mambo weird juu
juu, na baadhi weird wahusika chini

207
00:09:21,850 --> 00:09:25,960
chini, dhana sasa ya
Programu katika lugha hii nyingine

208
00:09:25,960 --> 00:09:27,860
ni kwenda kuwa sawa.

209
00:09:27,860 --> 00:09:30,120
>> Kwa kweli, hebu kufanya mfano mwingine mmoja.

210
00:09:30,120 --> 00:09:32,520
Hivyo mimi nina kwenda mbele
na karibu faili hii.

211
00:09:32,520 --> 00:09:37,740
Napenda kujenga mtu mwingine kwamba
Mimi nitakuita hali 1 nukta PHP.

212
00:09:37,740 --> 00:09:40,770
Hivyo hakuna sifuri, kwa sababu nini mimi
ilikuwa nikaona nyuma wiki chache zilizopita,

213
00:09:40,770 --> 00:09:43,490
tulikuwa na faili inayoitwa
hali 1 nukta C. Na nini

214
00:09:43,490 --> 00:09:47,590
Sikuwa alibadilishwa katika wangu
kichwa, na katika hapa juu ya karatasi,

215
00:09:47,590 --> 00:09:51,290
na hivi karibuni kwenye kozi ya
tovuti, mstari kwa mstari katika PHP.

216
00:09:51,290 --> 00:09:55,520
>> Hivyo katika toleo C, sisi alifanya kitu
kama kamba s anapata kupata kamba.

217
00:09:55,520 --> 00:09:58,200
Hivyo ni tofauti kidogo
kufanya hivyo katika PHP.

218
00:09:58,200 --> 00:10:01,390
Badala yake, mimi nina kwenda tu
kufanya, au tuseme, mimi

219
00:10:01,390 --> 00:10:05,870
anaweza kuwa amefanya int n anapata kupata
int, katika mfano huu mapema.

220
00:10:05,870 --> 00:10:12,600
Hivyo badala ya kuwa, mimi nina kwenda kufanya n
anapata kusoma mstari, Ningependa integer,

221
00:10:12,600 --> 00:10:13,670
tafadhali.

222
00:10:13,670 --> 00:10:15,110
Hivyo hii ni tu haraka yangu.

223
00:10:15,110 --> 00:10:17,260
Na hivyo ni zamu nje, na
Napenda tu kujua huu

224
00:10:17,260 --> 00:10:20,480
kutoka baada ya kusoma au kuonekana kazi
kabla, kusoma mistari ya kazi katika PHP

225
00:10:20,480 --> 00:10:23,810
inachukua hoja kuwa ni wa haraka
kwa binadamu, na madhumuni yake katika maisha

226
00:10:23,810 --> 00:10:26,220
ni kusoma mstari wa maandishi
kuwa yeye aina katika.

227
00:10:26,220 --> 00:10:29,160
Na kisha huweka kwamba
Nakala ndani ya n kutofautiana.

228
00:10:29,160 --> 00:10:32,200
>> Na sasa mimi kutaka kufanya kitu
kama mimi wiki iliyopita, katika wiki kama

229
00:10:32,200 --> 00:10:33,290
moja ya darasa.

230
00:10:33,290 --> 00:10:36,600
Kama n ni kubwa kuliko
sifuri, basi, mimi nina kwenda

231
00:10:36,600 --> 00:10:42,930
kukopa kwamba syntax sisi tu kuona,
magazeti def, wewe ilichukua idadi chanya,

232
00:10:42,930 --> 00:10:44,360
backslash n.

233
00:10:44,360 --> 00:10:49,990
Mwingine kama n ni sawa sawa na sifuri, mimi nina
kwenda mbele na kusema, magazeti def,

234
00:10:49,990 --> 00:10:54,090
wewe ilichukua sifuri backslash n.

235
00:10:54,090 --> 00:10:56,830
Kingine chochote, kesi hapa lazima
bila shaka kuwa, magazeti def,

236
00:10:56,830 --> 00:10:58,620
wewe ilichukua namba hasi.

237
00:10:58,620 --> 00:11:00,970
>> Na tunaweza shaka kutekeleza
mantiki ya jambo hili

238
00:11:00,970 --> 00:11:03,390
katika kundi la tofauti
njia, lakini hatua hapa

239
00:11:03,390 --> 00:11:07,210
ni kwamba syntactically,
vigumu chochote ni mpya.

240
00:11:07,210 --> 00:11:09,830
Ni tu ishara ya dola na
kazi mpya na kusoma mstari.

241
00:11:09,830 --> 00:11:12,090
Lakini kimsingi, nini mpya
sasa ni mimi nina kutafsiri hii.

242
00:11:12,090 --> 00:11:13,910
Mimi nina kupita kama pembejeo
kwa mpango mwingine.

243
00:11:13,910 --> 00:11:16,620
Hivyo kama nataka kukimbia hii, kama
Sikuwa kufanya makosa yoyote,

244
00:11:16,620 --> 00:11:20,140
Mimi nina kwenda kukimbia PHP, ya
hali 1 nukta PHP, kuingia,

245
00:11:20,140 --> 00:11:23,440
Mimi nina kwenda aina katika idadi 50,
na hebu kudhani kwa sasa ni kazi.

246
00:11:23,440 --> 00:11:25,940
Kwa sababu mantiki ni
mambo sawa kama wiki moja.

247
00:11:25,940 --> 00:11:28,020
>> Haki wote, hivyo hiyo ni mzuri
aghali, sawa?

248
00:11:28,020 --> 00:11:30,240
Tuliweza kufanya hivyo katika yoyote
idadi ya lugha.

249
00:11:30,240 --> 00:11:33,200
Hebu kufanya kitu njia na nguvu zaidi.

250
00:11:33,200 --> 00:11:35,610
Hebu kumaliza tatizo kuweka tano.

251
00:11:35,610 --> 00:11:37,370
Hivyo mimi nina kwenda mbele na kufanya hili.

252
00:11:37,370 --> 00:11:42,920
Mimi nina kwenda kuunda faili
aitwaye kamusi nukta PHP,

253
00:11:42,920 --> 00:11:45,424
na kutega kama unaweza kuwa
kinyang'anyiro chini kura ya maelezo,

254
00:11:45,424 --> 00:11:47,340
maelezo itasaidia
wewe kama wewe ni kuruhusiwa

255
00:11:47,340 --> 00:11:48,923
kutekeleza matatizo kuweka tano katika PHP.

256
00:11:48,923 --> 00:11:52,706
Lakini tutaweza kuona jinsi ya haraka sisi sasa
unaweza kutekeleza hiyo tatizo seti.

257
00:11:52,706 --> 00:11:56,830
>> Hivyo katika kamusi nukta PHP, mimi ni kwenda
kwa kudhani kwamba tayari kuna

258
00:11:56,830 --> 00:11:58,514
file katika ulimwengu inaitwa speller.

259
00:11:58,514 --> 00:12:01,430
Na hakika, mimi alifanya hivyo mapema,
na hatutakuwa kutembea kwa njia ya mstari huu

260
00:12:01,430 --> 00:12:03,596
kwa mstari, lakini kama wewe ni
wadadisi baadaye na kweli unataka

261
00:12:03,596 --> 00:12:06,250
wrap akili yako karibu
tofauti kati ya c na PHP,

262
00:12:06,250 --> 00:12:09,030
halisi kulinganisha faili hili,
speller, kutoka chanzo kanuni leo

263
00:12:09,030 --> 00:12:11,190
kwamba tutaweza baada baadaye
leo, dhidi p kuweka

264
00:12:11,190 --> 00:12:15,309
tano speller nukta c kwamba sisi kukupa,
na ni karibu ya mstari huo kuipinga line.

265
00:12:15,309 --> 00:12:16,600
Kuna baadhi ya ishara kubwa zaidi ya dola.

266
00:12:16,600 --> 00:12:18,330
Kazi wanandoa ni
tofauti kidogo.

267
00:12:18,330 --> 00:12:20,038
Lakini ni njia nzuri
ya aina ya kuona jinsi

268
00:12:20,038 --> 00:12:22,740
wewe kutafsiri lugha moja hadi nyingine.

269
00:12:22,740 --> 00:12:24,812
Na ni karibu sawa mstari kwa mstari.

270
00:12:24,812 --> 00:12:27,770
Lakini mimi nina kwenda kwa kudhani kuwa kwamba
ipo, na kile Mimi naenda kufanya hapa

271
00:12:27,770 --> 00:12:31,310
ni kujaribu pigo yako
akili na reimplementing

272
00:12:31,310 --> 00:12:36,210
ukamilifu wa tatizo kuweka njia tano
kasi zaidi kuliko tumekuwa kufanya hivi sasa.

273
00:12:36,210 --> 00:12:39,330
Hivyo kwa mfano, mimi nina kwenda kwanza
kutangaza variable kimataifa aitwaye ukubwa,

274
00:12:39,330 --> 00:12:40,444
na kuliweka sawa na sifuri.

275
00:12:40,444 --> 00:12:41,610
Sasa hiyo ni si akiba sana.

276
00:12:41,610 --> 00:12:44,170
Tabia mbaya ni wewe kutekelezwa
ukubwa pretty kiasi sawa,

277
00:12:44,170 --> 00:12:48,440
au ladha ladha, mapenzi usiku wa leo au kesho,
tu kwa kutumia variable kimataifa wito

278
00:12:48,440 --> 00:12:49,900
ukubwa, na kuiandaa sawa na sifuri.

279
00:12:49,900 --> 00:12:52,660
Hiyo si hasa
kushangaza spoiler.

280
00:12:52,660 --> 00:12:57,180
>> Kwa hiyo kile walikuwa taarifa yako miundo ya
uchaguzi, wale ambao wamekuwa dived katika

281
00:12:57,180 --> 00:13:02,170
na kusoma spec, miundo data kile
kuwa wengi katika nyinyi wamekuwa kutumia?

282
00:13:02,170 --> 00:13:06,840
Meza hash au kujaribu, labda
baadhi variants yake.

283
00:13:06,840 --> 00:13:10,490
Hivyo utekelezaji meza hash angalau,
ni aina ya mengi ya mstari wa kanuni,

284
00:13:10,490 --> 00:13:10,990
sawa?

285
00:13:10,990 --> 00:13:13,700
Na si wote wanaweza kuwa
kazi katika hatua hii katika wiki,

286
00:13:13,700 --> 00:13:14,366
lakini hiyo ni nzuri.

287
00:13:14,366 --> 00:13:19,300
Kwa sababu katika PHP, kama mimi
wanataka meza hash, kosa.

288
00:13:19,300 --> 00:13:20,260
Sawa?

289
00:13:20,260 --> 00:13:22,610
Hivyo kwamba kutofautiana kwamba nimekuwa
tu alitangaza ni wazi

290
00:13:22,610 --> 00:13:26,180
aitwaye dola ishara meza,
kwa kuanzishwa kabla.

291
00:13:26,180 --> 00:13:28,902
>> Lakini kwa kweli mimi nataka tu, katika
Mwisho wa siku, safu.

292
00:13:28,902 --> 00:13:31,610
Lakini si numerically indexed
safu, kwa sababu hiyo ni kama wiki mbili

293
00:13:31,610 --> 00:13:33,440
mambo, wakati sisi aliyesema kuhusu arrays.

294
00:13:33,440 --> 00:13:34,850
Nataka meza hash.

295
00:13:34,850 --> 00:13:38,070
Lakini meza hash ni kweli
njia tu halisi ya kusema,

296
00:13:38,070 --> 00:13:40,190
unataka safu associative.

297
00:13:40,190 --> 00:13:43,270
Unataka kuwa na uwezo wa
funguo kushirikiana na maadili.

298
00:13:43,270 --> 00:13:44,200
Funguo na maadili.

299
00:13:44,200 --> 00:13:45,640
Ni nini kamusi, kweli?

300
00:13:45,640 --> 00:13:47,080
Naam ni rundo zima la funguo.

301
00:13:47,080 --> 00:13:50,320
Maneno kama apple, pear, na ndizi,
na maneno yote haya Kiingereza

302
00:13:50,320 --> 00:13:51,490
kwamba sisi mkono wewe.

303
00:13:51,490 --> 00:13:54,820
>> Na maadili kwamba wewe ni ufanisi
kuingiza katika kamusi yako

304
00:13:54,820 --> 00:13:57,790
ni aidha ya kweli, au kutokuwepo, uongo.

305
00:13:57,790 --> 00:14:00,540
Kwa maneno mengine wewe ni kuingiza
rundo zima la thamani jozi ufunguo,

306
00:14:00,540 --> 00:14:03,720
apple, kweli, pear, kweli, ndizi, kweli.

307
00:14:03,720 --> 00:14:07,446
Hivyo kwamba wakati wewe kuzipata au kuangalia
up kwamba data katika meza hash yako

308
00:14:07,446 --> 00:14:10,070
na hundi yako kazi, uko
ama kupata nyuma jibu,

309
00:14:10,070 --> 00:14:13,260
Ndiyo, nimeona ni katika tata yangu
hash meza, au hakuna, siyo huko,

310
00:14:13,260 --> 00:14:14,540
hivyo kurudi uongo.

311
00:14:14,540 --> 00:14:19,440
>> Hivyo kufanya hivyo, kila nahitaji ni data
muundo kama mimi mapendekezo kabla.

312
00:14:19,440 --> 00:14:22,050
Mimi tu haja ya kuwa na uwezo
kujiunga maneno

313
00:14:22,050 --> 00:14:25,570
kama, unquote kunukuu, ishara,
na thamani kama, kweli.

314
00:14:25,570 --> 00:14:27,090
Hivyo kuna meza yangu hash.

315
00:14:27,090 --> 00:14:28,180
Hebu kweli matumizi yake.

316
00:14:28,180 --> 00:14:30,310
Hivyo kuna kazi chache
Mimi haja ya kutekeleza.

317
00:14:30,310 --> 00:14:33,300
Mimi nina kwenda mbele na kuuma kwenda
mbali kazi kuitwa ukubwa.

318
00:14:33,300 --> 00:14:34,390
Inachukua hakuna hoja.

319
00:14:34,390 --> 00:14:36,660
Sina ya kujisumbua na
neno, batili, katika PHP.

320
00:14:36,660 --> 00:14:38,770
Mimi tu kwenda na kurudi ukubwa.

321
00:14:38,770 --> 00:14:41,287
>> Na kama kando, PHP ina
huu undani minorly annoying,

322
00:14:41,287 --> 00:14:44,620
ambapo kama kitu fulani ni la kimataifa, una
kuwaambia kazi ambayo unatumia

323
00:14:44,620 --> 00:14:46,220
hivyo, hey, hii ni variable kimataifa.

324
00:14:46,220 --> 00:14:49,330
Hivyo, madogo ujinga, lakini wewe
una kufanya hivyo hata hivyo.

325
00:14:49,330 --> 00:14:50,920
>> Basi nini kuhusu mzigo?

326
00:14:50,920 --> 00:14:52,990
Mimi nina kwenda kutekeleza
kazi kuitwa mzigo

327
00:14:52,990 --> 00:14:56,790
kwamba inachukua kwa jina la kamusi,
kama vile katika tatizo kuweka tano.

328
00:14:56,790 --> 00:14:59,554
Na kabla ya mimi kuendelea,
taarifa kwamba mimi si

329
00:14:59,554 --> 00:15:00,970
wamekuwa kuandika kabisa mambo sawa.

330
00:15:00,970 --> 00:15:06,060
Nini ni wazi tofauti katika PHP kuhusu
jinsi kutangaza kazi dhidi C?

331
00:15:06,060 --> 00:15:06,616
Naam.

332
00:15:06,616 --> 00:15:07,490
Watazamaji: [inaudible]

333
00:15:07,490 --> 00:15:08,573
SPIKA 1: Hapana aina ya kurudi.

334
00:15:08,573 --> 00:15:12,350
Na hakika, hiyo kesi, PHP
kadiri ni loosely typed,

335
00:15:12,350 --> 00:15:14,190
Pia kidogo sloppy kwa maana kwamba.

336
00:15:14,190 --> 00:15:17,680
Huwezi kutaja kama programu
nini kazi hii anarudi.

337
00:15:17,680 --> 00:15:20,490
Ingekuwa kweli kuangalia
katika kanuni kufikiri kuwa nje.

338
00:15:20,490 --> 00:15:22,670
Au kusoma maoni
au nyaraka.

339
00:15:22,670 --> 00:15:24,870
Hivyo pluses na minuses ya
aina hii ya maamuzi.

340
00:15:24,870 --> 00:15:26,750
Lakini mimi kusema
neno muhimu, kazi.

341
00:15:26,750 --> 00:15:28,360
Na wakati sisi kujifunza
JavaScript katika wiki kadhaa

342
00:15:28,360 --> 00:15:31,026
tunakwenda kuona kitu kimoja
tena, lakini ni wazo moja.

343
00:15:31,026 --> 00:15:34,220
Jina la kazi, hoja yake
au hoja au kukosekana, na sasa

344
00:15:34,220 --> 00:15:35,630
hapa ni utekelezaji.

345
00:15:35,630 --> 00:15:38,860
>> Hivyo nina kwenda kukata pembe baadhi tu
kuwa makubwa kwa muda tu.

346
00:15:38,860 --> 00:15:40,485
Lakini mimi nina kwenda mbele na kusema hii.

347
00:15:40,485 --> 00:15:44,890
Hii ni jinsi gani naweza mzigo
file katika safu.

348
00:15:44,890 --> 00:15:47,580
Kuna kazi katika PHP aitwaye file.

349
00:15:47,580 --> 00:15:49,300
Wewe mkono ni jina la faili.

350
00:15:49,300 --> 00:15:53,950
Ni mikono nyuma safu, ndani ya
ambayo ni ya kila mstari kutoka faili.

351
00:15:53,950 --> 00:15:56,480
Kutoka sifuri, moja, juu ya juu
kwa n bala 1 mistari.

352
00:15:56,480 --> 00:15:57,210
Hiyo ni, sawa?

353
00:15:57,210 --> 00:15:57,990
Hakuna f kusoma.

354
00:15:57,990 --> 00:15:58,826
Hakuna f get s.

355
00:15:58,826 --> 00:15:59,700
Hakuna s asilimia.

356
00:15:59,700 --> 00:16:00,420
Hakuna maumivu ya kichwa.

357
00:16:00,420 --> 00:16:01,220
Hakuna feof.

358
00:16:01,220 --> 00:16:03,950
Yote hayo mambo ambayo
tumekuwa kumenyana pengine,

359
00:16:03,950 --> 00:16:06,550
na p kuweka nne na tano, huenda zake.

360
00:16:06,550 --> 00:16:09,450
>> Hivyo mimi tu kusoma mistari hayo katika
faili, na kisha unajua nini?

361
00:16:09,450 --> 00:16:15,510
Kama mimi nataka iterate juu ya maneno hayo,
Siwezi kufanya, kwa kila mistari kama mstari.

362
00:16:15,510 --> 00:16:19,992
Kumbuka kuwa hii ilikuwa ni aina ya wajanja
njia ya iterating juu ya safu, ripoti

363
00:16:19,992 --> 00:16:25,090
na ripoti, na juu ya kila iteration wito
mstari wa sasa, dola ishara line.

364
00:16:25,090 --> 00:16:31,560
Na hapa hapa mimi nina kwenda na
kusema meza, mabano, line, anapata kweli.

365
00:16:31,560 --> 00:16:35,880
>> Kwa maneno mengine, hii ni jinsi gani mimi
kuingiza ndani ya meza yangu hash katika PHP.

366
00:16:35,880 --> 00:16:38,740
Nasema dola ishara meza, ambayo
ni safu associative yangu kwamba alikuwa

367
00:16:38,740 --> 00:16:40,690
tupu kwa mstari wa kanuni juu juu.

368
00:16:40,690 --> 00:16:42,790
Mimi kisha ripoti ndani yake
si, kwa kutumia idadi,

369
00:16:42,790 --> 00:16:45,300
lakini halisi kwa kutumia
Keyword kwamba mimi huduma ya juu.

370
00:16:45,300 --> 00:16:47,730
Labda ni apple au pear
au ndizi au chochote,

371
00:16:47,730 --> 00:16:51,645
lakini hasa mimi nina Indexing
ndani yake kama mimi mapendekezo ya awali.

372
00:16:51,645 --> 00:16:53,770
Mimi kuchukua jina la zangu
safu associative, na kisha mimi

373
00:16:53,770 --> 00:16:56,450
kutumia quote unquote katika
mabano mraba na kamba,

374
00:16:56,450 --> 00:16:58,490
badala ya idadi halisi.

375
00:16:58,490 --> 00:17:00,250
>> Na hivyo hiyo ni yake.

376
00:17:00,250 --> 00:17:01,720
Mzigo kazi ni kosa.

377
00:17:01,720 --> 00:17:05,119
Mara baada ya kuwa kitanzi iterates, nimekuwa kuweka
kila kitu katika meza hash.

378
00:17:05,119 --> 00:17:07,810
Sasa disclaimer ndogo, kuna
wanandoa mambo sijui haja ya kurekebisha.

379
00:17:07,810 --> 00:17:10,030
Na toleo la mimi itabidi baada online
itakuwa na wote wa nuances,

380
00:17:10,030 --> 00:17:12,670
lakini ni wengi tu kwenda kuwa baadhi
makosa kuangalia na baadhi tweaks madogo.

381
00:17:12,670 --> 00:17:14,044
Lakini hiyo ni kweli kiini cha.

382
00:17:14,044 --> 00:17:16,750
Kama mimi sasa wanataka kutekeleza
kazi kuitwa

383
00:17:16,750 --> 00:17:19,869
kuangalia, ambayo inatarajia
neno kama hoja yake,

384
00:17:19,869 --> 00:17:22,099
jinsi gani mimi kwenda juu ya kufanya hivyo?

385
00:17:22,099 --> 00:17:30,020
Naam, mimi nina tu kwenda kusema, ikiwa
ndani ya meza yangu, katika eneo neno,

386
00:17:30,020 --> 00:17:30,652
kama ni kuweka.

387
00:17:30,652 --> 00:17:32,360
Hivyo kama kuna is--
kweli, unajua nini?

388
00:17:32,360 --> 00:17:34,830
Mimi nina kwenda kufanya hivyo katika
kidogo ya pseudocode.

389
00:17:34,830 --> 00:17:36,020
Lakini wazo ni sawa.

390
00:17:36,020 --> 00:17:41,640
Kama hiyo ni sawa na wa kweli, kurudi kweli.

391
00:17:41,640 --> 00:17:43,890
Sawa.

392
00:17:43,890 --> 00:17:46,851
Else-- unaweza aina ya kuona ambapo
hii ni kwenda na kurudi uongo.

393
00:17:46,851 --> 00:17:47,350
Kufanyika.

394
00:17:47,350 --> 00:17:49,640
Angalia ni kosa.

395
00:17:49,640 --> 00:17:50,940
>> Pretty nzuri, sawa?

396
00:17:50,940 --> 00:17:52,560
Na hivyo kile ni kweli hii kupata saa?

397
00:17:52,560 --> 00:17:53,680
Na hii pia, mimi kukata baadhi pembe.

398
00:17:53,680 --> 00:17:56,020
Angalia toleo la online
kwa wote wa nuances kidogo.

399
00:17:56,020 --> 00:17:57,103
Lakini hiyo ni kiini cha hiyo.

400
00:17:57,103 --> 00:17:59,080
Ripoti ya ndani ya yako
safu associative, a.k.a.

401
00:17:59,080 --> 00:18:02,910
Meza hash, kuona kama kuna thamani
huko, ikiwa ni kuweka kweli, na kama ni hivyo,

402
00:18:02,910 --> 00:18:03,930
kurudi kweli.

403
00:18:03,930 --> 00:18:05,819
Hivyo tumekuwa yameshuka
zote za utata.

404
00:18:05,819 --> 00:18:07,110
Hivyo aina ya akili ya kupiga, sawa?

405
00:18:07,110 --> 00:18:09,680
Sitaki kujisumbua kumaliza kwa ipakuliwe,
kwa sababu katika fact-- loo, unajua nini?

406
00:18:09,680 --> 00:18:11,620
Naam, hebu kumaliza na ipakuliwe.

407
00:18:11,620 --> 00:18:18,940
>> Kupakua katika meza hash ili kuangalia
kama kazi ipakuliwe, kurudi.

408
00:18:18,940 --> 00:18:19,930
OK hivyo hiyo ni ipakuliwe.

409
00:18:19,930 --> 00:18:21,350
Kwa sababu kuna kitu
ipakuliwe, sawa?

410
00:18:21,350 --> 00:18:22,170
Hakuna malloc.

411
00:18:22,170 --> 00:18:24,280
Sikuwa wazi kuuliza
mfumo wa uendeshaji kwa kitu chochote.

412
00:18:24,280 --> 00:18:25,571
Mimi tu ya kuanza kutumia vigezo.

413
00:18:25,571 --> 00:18:30,510
Na hivyo hii pia ni kielelezo cha
makala ya lugha ngazi za juu.

414
00:18:30,510 --> 00:18:32,940
Hivyo tena, zaidi ya muda huu
tumekuwa kushughulika chini hapa

415
00:18:32,940 --> 00:18:34,280
na C. cha Super chini.

416
00:18:34,280 --> 00:18:35,980
Unaweza kuona kumbukumbu ya kompyuta.

417
00:18:35,980 --> 00:18:38,440
Unaweza kugusa kitu chochote
wanataka katika RAM kompyuta yako,

418
00:18:38,440 --> 00:18:39,440
kwa bora au mbaya.

419
00:18:39,440 --> 00:18:41,760
>> Hadi hapa, tunakwenda
kuachia madaraka hiyo.

420
00:18:41,760 --> 00:18:44,730
Lakini mungu wangu, kuangalia jinsi
kiasi kidogo kificho niliandika.

421
00:18:44,730 --> 00:18:47,660
Kwa kweli kama ningekuwa si kuzungumza
na kuzungumza juu ya kuandika yangu,

422
00:18:47,660 --> 00:18:50,190
tunataka zimefanyika kwa
mfano huu wa dakika tano iliyopita.

423
00:18:50,190 --> 00:18:52,150
Basi nini bei wanalipwa?

424
00:18:52,150 --> 00:18:54,100
Naam hebu tuangalie.

425
00:18:54,100 --> 00:18:55,340
Hebu tuangalie.

426
00:18:55,340 --> 00:18:59,340
Mimi nina kwenda mbele na kukimbia CS50.

427
00:18:59,340 --> 00:19:02,160
Hebu kwanza kwenda katika
leo mifano ambapo

428
00:19:02,160 --> 00:19:03,970
Nina maandiko directory kama kabla.

429
00:19:03,970 --> 00:19:08,520
Mimi nina kwenda kukimbia ufumbuzi kwamba
inakuja na tatizo kuweka tano inayoitwa

430
00:19:08,520 --> 00:19:11,190
speller, ambayo ni katika akaunti CS50.

431
00:19:11,190 --> 00:19:14,040
>> Na mimi nina kwenda kuendesha kwenye kitu
kubwa kama King James Biblia,

432
00:19:14,040 --> 00:19:16,547
tu ili tuweze kweli kuweka
ufumbuzi wafanyakazi wa mtihani.

433
00:19:16,547 --> 00:19:19,130
Sasa wakati mwingine biashara ni
kidogo polepole, kidogo kwa kasi,

434
00:19:19,130 --> 00:19:20,338
inaweza kuchukua muda na kitabu.

435
00:19:20,338 --> 00:19:23,730
Lakini ilichukua jumla ya sekunde 0.56
Spell kuangalia King James

436
00:19:23,730 --> 00:19:25,150
Biblia kwa kutumia ufumbuzi wafanyakazi.

437
00:19:25,150 --> 00:19:25,620
Hivyo nzuri sana.

438
00:19:25,620 --> 00:19:27,786
Wako anaweza kuwa kiasi polepole,
na kwamba ni kabisa faini.

439
00:19:27,786 --> 00:19:30,090
Lakini ni sahihi hapa.

440
00:19:30,090 --> 00:19:32,440
Hivyo hiyo ni ufumbuzi wafanyakazi.

441
00:19:32,440 --> 00:19:34,785
Kama mimi kwenda katika na kusafisha PHP version.

442
00:19:34,785 --> 00:19:36,990
Na mimi nina kwenda kufanya kidogo
kama kuoka show kitu.

443
00:19:36,990 --> 00:19:39,720
Sisi ni kwenda kuchukua kificho niliandika
awali, hivyo ni sahihi kabisa.

444
00:19:39,720 --> 00:19:42,678
Kwa sababu kificho niliandika si kwenda
kuwa sahihi kabisa tu sasa.

445
00:19:42,678 --> 00:19:47,310
Lakini kama mimi kukimbia PHP version,
je, mimi uwachane leo?

446
00:19:47,310 --> 00:19:49,980
Alichukua yangu dakika tano
kutekeleza p kuweka tano, mimi kudai.

447
00:19:49,980 --> 00:19:51,770
Nini bei kuwa mimi kulipwa?

448
00:19:51,770 --> 00:19:52,270
Naam.

449
00:19:52,270 --> 00:19:52,937
>> Watazamaji: Kasi.

450
00:19:52,937 --> 00:19:53,645
SPIKA 1: Kasi.

451
00:19:53,645 --> 00:19:54,380
Ni nini maana?

452
00:19:54,380 --> 00:19:55,230
>> Watazamaji: Ni kwenda kuchukua muda mrefu.

453
00:19:55,230 --> 00:19:55,660
>> SPIKA 1: Sawa.

454
00:19:55,660 --> 00:19:56,160
Hebu angalia.

455
00:19:56,160 --> 00:19:59,590
Ni kwenda kuchukua muda mrefu,
si kuandika, lakini kuendesha.

456
00:19:59,590 --> 00:20:00,090
Naam.

457
00:20:00,090 --> 00:20:00,960
Basi hebu jaribu hii.

458
00:20:00,960 --> 00:20:05,720
Hivyo hapa mimi nina kwenda mbele na kufanya
PHP ya speller, na kwa sababu faili ya

459
00:20:05,720 --> 00:20:06,360
aitwaye speller.

460
00:20:06,360 --> 00:20:07,580
Hivyo mimi nina si mbio
kamusi, wanakumbuka,

461
00:20:07,580 --> 00:20:09,204
Mimi mbio programu inayoitwa speller.

462
00:20:09,204 --> 00:20:12,450
Mimi nina kwenda kupita katika huo
file, King James tano.

463
00:20:12,450 --> 00:20:14,377
Ni kuruka kwa.

464
00:20:14,377 --> 00:20:17,210
Hii inaweza tu kuwa internet kasi,
hivyo si kusoma sana ndani ya kwamba.

465
00:20:17,210 --> 00:20:21,680
Lakini haina kujisikia tena kwa uhakika.

466
00:20:21,680 --> 00:20:23,280
1.26 sekunde.

467
00:20:23,280 --> 00:20:25,150
>> Sasa hiyo ni bado mzuri
damn haraka, sawa?

468
00:20:25,150 --> 00:20:28,140
Na sababu tu kwamba inaonekana kama
zaidi kama tatu, nne, au tano

469
00:20:28,140 --> 00:20:30,515
sekunde, hiyo ni kwa sababu tu
biashara mara kuwa polepole.

470
00:20:30,515 --> 00:20:33,980
Wakati kompyuta zilizotumika ilikuwa 1.26
sekunde, dhidi Nadhani 0.56.

471
00:20:33,980 --> 00:20:35,880
Hivyo zaidi ya mara mbili polepole.

472
00:20:35,880 --> 00:20:39,170
Sasa hiyo ni bado pretty darn
haraka, lakini ni ishara

473
00:20:39,170 --> 00:20:40,860
ya kweli, bei ambayo halisi.

474
00:20:40,860 --> 00:20:43,460
>> Kwa sababu sisi ni kutafsiri
katika kanuni mstari kwa mstari,

475
00:20:43,460 --> 00:20:46,740
na kwamba mpango PHP ni kusoma yangu
kificho juu hadi chini, kushoto na kulia,

476
00:20:46,740 --> 00:20:47,940
ina nini kufikiri zaidi.

477
00:20:47,940 --> 00:20:50,430
Ina aina ya kubadilisha
ndani ya yenyewe

478
00:20:50,430 --> 00:20:53,464
kwa mashine sambamba
kificho juu ya kuruka, hivyo kusema,

479
00:20:53,464 --> 00:20:55,380
hata kama mechanics
ni tofauti kidogo.

480
00:20:55,380 --> 00:20:59,430
Badala ya kulisha tu kwa
Intel CPU zeros na ndio mbichi

481
00:20:59,430 --> 00:21:00,930
kwamba anaelewa natively.

482
00:21:00,930 --> 00:21:04,110
>> Hivyo kabisa, mikono chini,
sisi kuwa na kulipwa bei.

483
00:21:04,110 --> 00:21:09,120
Na sheria iliyoandikwa katika lugha
kama PHP huelekea kuwa polepole.

484
00:21:09,120 --> 00:21:10,050
Lakini mungu wangu.

485
00:21:10,050 --> 00:21:12,740
Hivyo sasa wakati mimi Spell kuangalia yangu
file, mimi kutumia ziada 0.7

486
00:21:12,740 --> 00:21:17,280
au hivyo sekunde vs masaa 20 ili kutekeleza
kasi Spell kusahihisha, sawa?

487
00:21:17,280 --> 00:21:18,397
Ni aina ya biashara mbali.

488
00:21:18,397 --> 00:21:20,980
Na kama wewe ni mapya tu p
kuweka tano, wanaweza kuwa masaa 20.

489
00:21:20,980 --> 00:21:22,188
Inaweza kuwa mbali wachache kuliko hiyo.

490
00:21:22,188 --> 00:21:23,600
Lakini ni biashara mbali, kwa kweli.

491
00:21:23,600 --> 00:21:27,820
Na kama wewe ni mbio kificho katika kweli kubwa
seti data, au juu ya vifaa hata wakubwa,

492
00:21:27,820 --> 00:21:32,650
aina wale wa tofauti
tunaweza kuongeza up.

493
00:21:32,650 --> 00:21:34,880
>> Maswali yoyote hivi sasa?

494
00:21:34,880 --> 00:21:35,617
Naam.

495
00:21:35,617 --> 00:21:36,492
>> Watazamaji: [inaudible]

496
00:21:36,492 --> 00:21:38,187

497
00:21:38,187 --> 00:21:39,978
SPIKA 1: Samahani, unaweza
wewe kusema ni mara nyingine tena?

498
00:21:39,978 --> 00:21:40,853
Watazamaji: [inaudible]

499
00:21:40,853 --> 00:21:43,326

500
00:21:43,326 --> 00:21:44,700
SPIKA 1: Wewe ni kukata tamaa mara.

501
00:21:44,700 --> 00:21:45,283
Naam, hivyo yeah.

502
00:21:45,283 --> 00:21:47,322
Wewe ni kuokoa muda na
kutokuwa na kukusanya yake,

503
00:21:47,322 --> 00:21:48,530
kama kwamba ni nini wewe ni kuuliza.

504
00:21:48,530 --> 00:21:50,710
Na hakika, katika CS50,
zaidi ya mipango,

505
00:21:50,710 --> 00:21:53,668
ingawa wao wanaweza kuchukua muda
kuandika, wao ni mfupi.

506
00:21:53,668 --> 00:21:56,860
Kadhaa chache, chache mistari mia ya maadili,
na hivyo kukusanya pretty haraka.

507
00:21:56,860 --> 00:21:58,470
Lakini wakati wa kuanza
kuandika mipango kubwa,

508
00:21:58,470 --> 00:22:01,511
kama kama wewe ni Microsoft au uko
Google na kuandika mipango kweli kubwa

509
00:22:01,511 --> 00:22:05,360
katika C, au C ++, au vile vile ulioandaliwa
lugha, inaweza kuchukua sekunde nyingi,

510
00:22:05,360 --> 00:22:08,577
au hata dakika au zaidi kwa
kukusanya mamilioni ya mstari wa kanuni.

511
00:22:08,577 --> 00:22:10,660
Na huko pia kwamba,
tofauti ni kwenda kuongeza up.

512
00:22:10,660 --> 00:22:12,840
>> Na kwa kweli, mara moja sisi
mpito leo, siku hiyo hiyo

513
00:22:12,840 --> 00:22:15,910
leo, kwa programu ya mtandao
kutumia PHP, uko

514
00:22:15,910 --> 00:22:18,460
kwenda kupata hiyo kiasi tu
zaidi utamu kuandika kificho

515
00:22:18,460 --> 00:22:21,501
wakati huna kufanya haya kijinga
hatua kama mabadiliko ya terminal yako

516
00:22:21,501 --> 00:22:24,202
dirisha, aina ya kufanya hello, re
kukimbia, upya dirisha.

517
00:22:24,202 --> 00:22:25,910
Hivyo tu wengi kijinga
hatua mitambo kwamba

518
00:22:25,910 --> 00:22:28,480
tu kupata njia ya kufanya
kuvutia, furaha kazi.

519
00:22:28,480 --> 00:22:31,450
Na hakika sisi kutupa kwamba mbali na PHP.

520
00:22:31,450 --> 00:22:34,960
Na tunaweza kushirikiana
nayo kwa kasi zaidi.

521
00:22:34,960 --> 00:22:35,495
Naam.

522
00:22:35,495 --> 00:22:36,370
Watazamaji: [inaudible]

523
00:22:36,370 --> 00:22:40,294

524
00:22:40,294 --> 00:22:40,960
SPIKA 1: Ni kweli.

525
00:22:40,960 --> 00:22:42,876
Naweza kufafanua nini
ina maana kutafsiriwa?

526
00:22:42,876 --> 00:22:45,870
Wakati kukusanya lugha
kama C, unaendelea chini

527
00:22:45,870 --> 00:22:48,140
kama tulivyosema kwa mashine
kanuni, zeros na ndio.

528
00:22:48,140 --> 00:22:51,860
Na Intel aliamua miaka iliyopita kwamba
mwelekeo fulani ya zeros na ndio

529
00:22:51,860 --> 00:22:56,220
kuwakilisha Aidha, au kutoa,
au magazeti, au shughuli nyingine za msingi.

530
00:22:56,220 --> 00:23:00,250
Katika ulimwengu wa lugha kufasiriwa
kama PHP, au JavaScript, au chatu,

531
00:23:00,250 --> 00:23:03,120
au Ruby, au mashada ya
wengine, badala ya mtu

532
00:23:03,120 --> 00:23:05,120
ameandika
interpreter-- katika kesi hiyo,

533
00:23:05,120 --> 00:23:09,770
ni pia hujulikana PHP, kufanana na
jina la language-- kwamba kimsingi

534
00:23:09,770 --> 00:23:13,840
ina kubwa kitanzi humo kwamba iterates
juu ya yote ya mstari wa kanuni

535
00:23:13,840 --> 00:23:18,170
kwamba mimi kulisha ni kama pembejeo, kama hodi
dot PHP, au kamusi nukta PHP.

536
00:23:18,170 --> 00:23:21,760
>> Na kisha unaweza kufikiria kubwa yao
kitanzi kama kuwa mengi ya masharti.

537
00:23:21,760 --> 00:23:26,340
Na hali hizo kusema, kama
binadamu ameandika keyword kwa,

538
00:23:26,340 --> 00:23:28,470
kuanza kufanya yake
kificho tena na tena.

539
00:23:28,470 --> 00:23:31,360
Au kama binadamu ana
Imeandikwa mstari wa kanuni,

540
00:23:31,360 --> 00:23:34,880
kama, tu kutekeleza yao
mstari unaofuata kwa masharti.

541
00:23:34,880 --> 00:23:37,740
Hivyo ni kweli kama kutafsiri
hivyo katika binadamu akili, mstari

542
00:23:37,740 --> 00:23:39,660
kwa mstari, na kwamba tu inachukua muda.

543
00:23:39,660 --> 00:23:41,340
Inachukua uendeshaji.

544
00:23:41,340 --> 00:23:44,189
Na hivyo ndiyo price--
nzuri question-- sisi kulipa.

545
00:23:44,189 --> 00:23:46,480
Basi hebu kufanya demo nyingine
hiyo ni kidogo makubwa zaidi.

546
00:23:46,480 --> 00:23:51,160
Kuna, ningesema, ballpark hii katika
90% uwezekano wa kushindwa horribly,

547
00:23:51,160 --> 00:23:53,869
lakini utakuwa hodi
na 10% uwezekano.

548
00:23:53,869 --> 00:23:55,660
Hivyo kila mwaka sisi kujaribu
kufanya hivyo, ambapo sisi

549
00:23:55,660 --> 00:23:59,061
jaribu kuandika mpango kwamba huenda kwa njia ya
tatizo kuweka sifuri, ambayo wameweza

550
00:23:59,061 --> 00:24:02,060
kuwasilishwa yako namba za simu na a
mengi ya taarifa nyingine za idadi ya watu,

551
00:24:02,060 --> 00:24:06,030
na sisi programmatically
kutuma ujumbe wa maandishi.

552
00:24:06,030 --> 00:24:08,540
Na kisha simu ya kila mtu
kuanza beeping au vibrating,

553
00:24:08,540 --> 00:24:11,460
na ni ajabu tu, kwa sababu
vizuri, kuangalia nini kompyuta wanaweza kufanya.

554
00:24:11,460 --> 00:24:13,840
>> Hii ni mara chache kazi kwa usahihi
inaonekana, katika sehemu kubwa

555
00:24:13,840 --> 00:24:16,800
kwa sababu mimi kawaida kupata blacklisted
na Gmail au baadhi huduma nyingine

556
00:24:16,800 --> 00:24:19,630
kwa kweli kujaribu kufanya hivyo kwa kiwango.

557
00:24:19,630 --> 00:24:24,940
Lakini funny kitu ni pia, tangu sisi
hawana kila mtu hapa leo,

558
00:24:24,940 --> 00:24:27,690
Ukweli furaha mwisho wakati sisi
walijaribu hii miaka miwili iliyopita,

559
00:24:27,690 --> 00:24:30,870
Nadhani niliandika mpango
aliyekuwa ameketi katika kitanzi iterating

560
00:24:30,870 --> 00:24:34,040
zaidi ya wanafunzi wote darasani,
na kila mmoja wao ujumbe wa maandishi,

561
00:24:34,040 --> 00:24:37,534
na ni alisema kitu kama,
kwa nini si wewe katika hotuba?

562
00:24:37,534 --> 00:24:39,170
Upendo, CS50 bot.

563
00:24:39,170 --> 00:24:42,580
>> Una wazo jinsi wengi kuomba msamaha
na aina ya chungu barua pepe

564
00:24:42,580 --> 00:24:46,970
Nimepata kupokea katika kukabiliana kutoka
n bala watu 100 ambao hawakuwa hapa

565
00:24:46,970 --> 00:24:47,960
siku hiyo.

566
00:24:47,960 --> 00:24:52,116
Na hata funnier, zaidi ya aibu story--
unajua, hebu kuiweka huko nje.

567
00:24:52,116 --> 00:24:53,740
Tayari ni juu ya video miaka michache nyuma.

568
00:24:53,740 --> 00:24:56,810
Hivyo wewe watakuja kuona mimi
kuandika kwa kitanzi, ambapo

569
00:24:56,810 --> 00:25:00,640
ni rahisi sana kuandika mdudu katika kuwa
kwa kitanzi, kama kwamba mara ya kwanza

570
00:25:00,640 --> 00:25:02,800
njia ya kitanzi, wewe
kutuma ujumbe mmoja maandishi.

571
00:25:02,800 --> 00:25:06,190
>> Mara ya pili kwa njia ya kitanzi mimi
lazima wametuma ujumbe mmoja zaidi wa maandishi,

572
00:25:06,190 --> 00:25:08,250
na kisha moja ya maandishi zaidi
ujumbe, na moja zaidi.

573
00:25:08,250 --> 00:25:11,490
Lakini zinageuka kama wewe kufanya typo
wakati programu, wakati mwingine wewe

574
00:25:11,490 --> 00:25:14,460
Unaweza kuandika mipango ambayo kutuma moja
ujumbe wa maandishi, basi ujumbe wa maandishi mbili,

575
00:25:14,460 --> 00:25:18,742
kisha ujumbe wa maandishi tatu kwa kila mtu
ambaye ni tayari kupokea ujumbe wa maandishi.

576
00:25:18,742 --> 00:25:21,450
Na kama unajua, kufanya kitu,
pamoja na kitu, pamoja na kitu,

577
00:25:21,450 --> 00:25:25,910
pamoja na kitu, ni O kubwa ya kura
ya ujumbe wa maandishi, au n squared,

578
00:25:25,910 --> 00:25:29,830
au $ 0.10 ujumbe wa maandishi, $ 20,000.

579
00:25:29,830 --> 00:25:33,700
>> Mimi nashiriki kugonga Kudhibiti-C kabla ya hapo
kilichotokea, lakini sikuweza deni angalau moja

580
00:25:33,700 --> 00:25:37,550
ya watangulizi yako $ 20 kwa
200 baadhi ya ujumbe wa maandishi isiyo ya kawaida kwamba,

581
00:25:37,550 --> 00:25:40,450
si tu akaenda kwa simu yake, lakini
Pia ilikuwa ni kama wakubwa flip simu

582
00:25:40,450 --> 00:25:43,520
hivyo ni kama kusukuma nje ya yake
kumbukumbu kila mmoja maandishi binafsi

583
00:25:43,520 --> 00:25:45,930
Ujumbe alikuwa kweli wamezipata.

584
00:25:45,930 --> 00:25:49,250
Hivyo tuna lengo moja
leo, si kufanya hivyo.

585
00:25:49,250 --> 00:25:50,620
Labda kurejea kwenye hali ya ndege.

586
00:25:50,620 --> 00:25:51,120
Sawa.

587
00:25:51,120 --> 00:25:56,590
Basi hebu kwenda katika
Mpango hapa callled--

588
00:25:56,590 --> 00:25:59,060
kuwa ninamwomba maandishi nukta PHP.

589
00:25:59,060 --> 00:26:01,074
Na mapema, mimi nimepata mafaili mbili hapa.

590
00:26:01,074 --> 00:26:06,030
Nilifanya faili kwa wafanyakazi tu, kwamba got
wote wa maelezo wafanyakazi wa, majina yote

591
00:26:06,030 --> 00:26:07,260
kutoka kwenye tovuti kozi.

592
00:26:07,260 --> 00:26:09,756
Na kisha kwa sasa mimi tu ya kuweka
idadi ya baadhi ya bandia 555-1212.

593
00:26:09,756 --> 00:26:11,380
Hivyo hawa ingekuwa si kweli kwenda popote.

594
00:26:11,380 --> 00:26:15,140
Lakini taarifa ndani ya faili hili CSV,
ambayo kuongelea kwa ufupi kabla

595
00:26:15,140 --> 00:26:16,540
katika mazingira ya faili IO.

596
00:26:16,540 --> 00:26:18,730
>> Nini jalada la CSV?

597
00:26:18,730 --> 00:26:19,970
Comma kutengwa vigezo.

598
00:26:19,970 --> 00:26:24,400
Na hii ni aina ya kama sana
nyepesi Mbegu, kama wewe.

599
00:26:24,400 --> 00:26:28,650
Kuna aina ya aina ya nguzo nne
katika faili hii, na kuna maporomoko,

600
00:26:28,650 --> 00:26:32,400
lakini koma kimsingi
kuwakilisha nguzo katika faili.

601
00:26:32,400 --> 00:26:35,400
Safu ya kwanza ni TF au jina CA ya.

602
00:26:35,400 --> 00:26:37,800
Safu ya pili ni jina yao ya mwisho.

603
00:26:37,800 --> 00:26:39,820
Safu ya tatu ni simu zao idadi.

604
00:26:39,820 --> 00:26:44,760
Na safu ya nne inaonekana is--
safu ya nne ni inaonekana nini?

605
00:26:44,760 --> 00:26:45,870
OK, hivyo ni carrier yao.

606
00:26:45,870 --> 00:26:47,180
Hivyo Verizon, Sprint au, au kile si.

607
00:26:47,180 --> 00:26:48,620
Na kama mimi misspoke awali, CSV.

608
00:26:48,620 --> 00:26:51,800
Comma kutengwa maadili ni CSV hapa.

609
00:26:51,800 --> 00:26:54,260
>> Hivyo nini naweza kufanya na hii?

610
00:26:54,260 --> 00:26:56,940
Naam hii ni kubwa Nakala faili,
na ni aina ya muda mrefu, sawa?

611
00:26:56,940 --> 00:26:58,690
Kama hii ni kwenda
kuwa aina ya annoying.

612
00:26:58,690 --> 00:27:03,510
Na zinageuka kuwa, kama mimi
unataka kutuma ujumbe wa maandishi kwa, hebu

613
00:27:03,510 --> 00:27:05,180
kusema Alex hapa.

614
00:27:05,180 --> 00:27:09,690
Hebu kwenda katika browser yangu
na kujinasua katika hali ya full screen

615
00:27:09,690 --> 00:27:11,660
tu ili niweze kugeuza na kurudi.

616
00:27:11,660 --> 00:27:20,280
Zinageuka, hebu angalia, kama mimi kwenda katika
hapa, na kuingia katika Gmail, haki zote.

617
00:27:20,280 --> 00:27:22,950
Je, si kuangalia sehemu hii.

618
00:27:22,950 --> 00:27:23,880
Tu mimi kupata kuona.

619
00:27:23,880 --> 00:27:26,551

620
00:27:26,551 --> 00:27:28,800
bila shaka wa mtiririko wa Unaweza
bado kuona nini mimi kufanya.

621
00:27:28,800 --> 00:27:29,360
Sawa.

622
00:27:29,360 --> 00:27:31,850
>> Hivyo hapa ni tu Gmail na
Akaunti John Harvard.

623
00:27:31,850 --> 00:27:34,000
Hivyo kama nataka kutuma
ujumbe wa maandishi kwa Alex,

624
00:27:34,000 --> 00:27:35,530
Siwezi bila shaka kutunga ujumbe.

625
00:27:35,530 --> 00:27:38,410
Na ni zamu nje, na nimekuwa
majaribio yake na Alex kabla hapa,

626
00:27:38,410 --> 00:27:42,260
hivyo unaweza append uwanja fulani
jina kwa namba za simu za watu,

627
00:27:42,260 --> 00:27:45,850
kwa sababu upo katika dunia
mambo kuitwa SMS email gateways.

628
00:27:45,850 --> 00:27:50,000
Ambayo ni njia dhana ya kusema zote
wetu ambao wanatumia simu za mikononi kuwa

629
00:27:50,000 --> 00:27:53,200
kuwa namba za simu, bila shaka,
kuna pengine ni kwa carrier yako,

630
00:27:53,200 --> 00:27:56,840
suffix fulani kama katika
Vtext.com kwa Verizon ujumbe wa maandishi

631
00:27:56,840 --> 00:28:00,320
dot com, uweze append kwa yako
mwenyewe binafsi simu namba, na kisha

632
00:28:00,320 --> 00:28:03,540
wewe au marafiki, au wazazi wako anaweza
Nakala wewe kwa anwani husika.

633
00:28:03,540 --> 00:28:07,380
>> Na Verizon ina server, email
server, kwamba juu ya kupokea barua pepe hii,

634
00:28:07,380 --> 00:28:11,180
inaangalia sehemu numeric halafu
anatumia chochote maalum sekta uchawi

635
00:28:11,180 --> 00:28:14,540
inabidi kweli kutuma nje zaidi
airwaves kwa kiini yako maalum

636
00:28:14,540 --> 00:28:15,040
simu.

637
00:28:15,040 --> 00:28:18,030
Sasa hii ni nzuri kwa sababu mimi si
kweli kujua jinsi ya kutuma ujumbe wa maandishi

638
00:28:18,030 --> 00:28:20,460
au kwa kuandika kanuni bado
kwa simu yangu ya mkononi,

639
00:28:20,460 --> 00:28:23,580
na unaweza kufanya hasa kwamba kwa
mradi wa mwisho, lakini kwa sasa wote

640
00:28:23,580 --> 00:28:24,770
Nina ni mbali yangu hapa.

641
00:28:24,770 --> 00:28:29,830
Hivyo nataka iterate juu ya kwamba CSV
file, mstari, kwa mstari, kwa mstari, kwa mstari,

642
00:28:29,830 --> 00:28:35,160
kunyakua kila mmoja wa wafanyakazi wa namba za simu,
na carrier yao na programatically,

643
00:28:35,160 --> 00:28:39,770
concatenate, yaani, kuunganisha simu
idadi na sahihi jina la uwanja

644
00:28:39,770 --> 00:28:40,820
na kisha kutuma barua pepe.

645
00:28:40,820 --> 00:28:41,940
>> Hivyo hiyo ni mengi ya hatua.

646
00:28:41,940 --> 00:28:45,530
Na bahati nzuri ya kufanya hivyo katika C.
Ni ndoto ya hali

647
00:28:45,530 --> 00:28:48,350
kufungua faili, kusoma
line, kwa mstari, kwa mstari, kama wewe

648
00:28:48,350 --> 00:28:51,100
ni kuona, au hivi karibuni wanaweza kuona
na tatizo kuweka tano, kama si

649
00:28:51,100 --> 00:28:53,560
tatizo kuweka nne, na kisha
dynamically concatenate

650
00:28:53,560 --> 00:28:57,020
masharti mawili kwa pamoja, kwa sababu katika C,
kuchukua masharti mawili na kuchanganya yao,

651
00:28:57,020 --> 00:29:00,900
je, wewe ya chini
haja ya kufanya zaidi uwezekano?

652
00:29:00,900 --> 00:29:03,020
Unahitaji kutangaza kumbukumbu zaidi, sawa?

653
00:29:03,020 --> 00:29:04,710
Na kuuliza, malloc, naweza kuwa na kumbukumbu zaidi?

654
00:29:04,710 --> 00:29:07,060
Hivyo siwezi kuweka nusu ya hii
hapa, nusu ya hii hapa.

655
00:29:07,060 --> 00:29:08,150
Ni tu hatua nyingi sana.

656
00:29:08,150 --> 00:29:10,310
Na kwa hatua hiyo umefanya waliopotea
maslahi katika kijinga demo kidogo

657
00:29:10,310 --> 00:29:11,851
ambapo kufanya kila mtu simu beep.

658
00:29:11,851 --> 00:29:14,590
Hebu kufanya aina hii ya PHP
mtindo, ambapo sisi tu

659
00:29:14,590 --> 00:29:16,210
kuanza kutumia zaidi ya kuwa kuzama jikoni.

660
00:29:16,210 --> 00:29:18,050
>> Na mawazo ni
Kimsingi huo,

661
00:29:18,050 --> 00:29:20,710
lakini hatuwezi kuwa na wasiwasi sana
mengi kuhusu kwamba ngazi ya chini.

662
00:29:20,710 --> 00:29:22,950
Basi hebu angalia jinsi mimi ili
kwenda juu ya kufanya hii.

663
00:29:22,950 --> 00:29:26,664
Na hivyo tu kwamba mimi si
kurudia makosa ya zamani,

664
00:29:26,664 --> 00:29:28,330
Nimekuwa imeandikwa baadhi ya maelezo kwa mwenyewe hapa.

665
00:29:28,330 --> 00:29:31,070
Na hebu angalia kama naweza kutembea kwetu
kupitia baadhi ya hatua za msingi,

666
00:29:31,070 --> 00:29:33,861
na kisha kwa ajili ya muda tutaweza
labda kukata pembe baadhi mwishoni.

667
00:29:33,861 --> 00:29:38,007
Mimi nina kwenda mbele na kufanya wazi
mabano PHP kuanza faili hii.

668
00:29:38,007 --> 00:29:39,590
Na mimi nina kwenda mbele na kufanya hili.

669
00:29:39,590 --> 00:29:41,490
Faili kushughulikia, kama utasikia
hivi karibuni kuona, kwa kweli

670
00:29:41,490 --> 00:29:44,790
wito kazi kuitwa f wazi.

671
00:29:44,790 --> 00:29:46,280
Na kumbuka hii kuufungua faili.

672
00:29:46,280 --> 00:29:48,800
Na quote, unquote,
r maana ya maneno haya tena?

673
00:29:48,800 --> 00:29:49,800
Tu kufungua kwa kusoma.

674
00:29:49,800 --> 00:29:51,210
Sasa katika p kuweka kwa, wewe alifanya hivyo.

675
00:29:51,210 --> 00:29:54,500
Na kushughulikia inaweza kuwa kitu chochote,
fu, bar, bas, jina lolote kutofautiana.

676
00:29:54,500 --> 00:29:57,470
Lakini kwa ujumla kompyuta
Mwanasayansi kuita faili wazi,

677
00:29:57,470 --> 00:30:00,962
kutoa faili kushughulikia,
kitu cha kushikilia kwenye hivyo kusema.

678
00:30:00,962 --> 00:30:02,670
Mimi tu kwenda kufanya
baadhi makosa ya kuangalia.

679
00:30:02,670 --> 00:30:07,260
Hivyo kama kushughulikia ni uongo, tu kama
katika C, mimi nina kwenda kufanya kitu kama,

680
00:30:07,260 --> 00:30:09,545
hakuweza kufungua faili, backslash n.

681
00:30:09,545 --> 00:30:11,420
Na kisha mimi nina kwenda tu
kwenda mbele na kutoka.

682
00:30:11,420 --> 00:30:14,340
Na ni zamu nje, katika PHP,
Sina ndani ya kazi.

683
00:30:14,340 --> 00:30:16,160
Hakuna kazi kubwa hapa ni.

684
00:30:16,160 --> 00:30:17,450
Hivyo mimi si kurudi, per se.

685
00:30:17,450 --> 00:30:18,120
Mimi kujinasua.

686
00:30:18,120 --> 00:30:19,619
Ambayo kimsingi ni kitu kimoja.

687
00:30:19,619 --> 00:30:22,510
Na mimi nina exiting kwa moja y pengine.

688
00:30:22,510 --> 00:30:24,220
Moja tu ina maana makosa ya aina fulani.

689
00:30:24,220 --> 00:30:25,580
Ni zisizo sifuri, hivyo ni makosa.

690
00:30:25,580 --> 00:30:30,220
>> Haki wote, hivyo kama mimi nina chini hapa sasa
katika mpango wangu mimi na kufunguliwa faili.

691
00:30:30,220 --> 00:30:34,250
Mimi nina kwenda mbele na kutangaza
safu kuitwa anwani,

692
00:30:34,250 --> 00:30:38,610
na katika C napenda kujua
ukubwa wa safu mapema, sawa?

693
00:30:38,610 --> 00:30:41,910
Au napenda haja ya kutangaza hii
ni pointer, na kisha kutumia malloc.

694
00:30:41,910 --> 00:30:44,720
Na kisha kila wakati mimi kusoma
kupitia mstari mwingine katika faili,

695
00:30:44,720 --> 00:30:46,620
Mimi nina kwenda haja malloc
zaidi ya kumbukumbu, malloc kumbukumbu zaidi.

696
00:30:46,620 --> 00:30:47,703
Hiyo ni maumivu ya shingo.

697
00:30:47,703 --> 00:30:50,950
Na nashiriki, PHP, na Ruby,
na chatu, na JavaScript, wao

698
00:30:50,950 --> 00:30:53,880
kukua arrays yako
kwa wewe moja kwa moja.

699
00:30:53,880 --> 00:30:54,830
Hakuna malloc zaidi.

700
00:30:54,830 --> 00:30:56,227
Hakuna zaidi ya kumbukumbu ya usimamizi.

701
00:30:56,227 --> 00:30:57,560
Kompyuta inachukua huduma ya kwamba.

702
00:30:57,560 --> 00:31:00,330
Lakini bei ya kulipa.

703
00:31:00,330 --> 00:31:01,350
Ni kidogo polepole.

704
00:31:01,350 --> 00:31:03,190
Na kwa ajili ya mpango kama hii
sisi siyo kwenda kwa taarifa.

705
00:31:03,190 --> 00:31:04,720
Tunakwenda kutuma ujumbe wa maandishi 100.

706
00:31:04,720 --> 00:31:06,136
Kwa mfano si kwenda kuhisi hivyo.

707
00:31:06,136 --> 00:31:08,430
NI kweli tu kuanza
jambo lugha yako ya uchaguzi

708
00:31:08,430 --> 00:31:11,490
wakati data wako au mipango yako
kupata kweli, kweli sizable,

709
00:31:11,490 --> 00:31:14,120
kama itakuwa kesi zaidi
na mtandao wetu msingi mambo ya ajabu.

710
00:31:14,120 --> 00:31:15,450
>> Lakini kwa sasa hebu kusonga mbele.

711
00:31:15,450 --> 00:31:20,120
Wakati ni zamu nje kuna
kazi katika C kuitwa f kupata CSV.

712
00:31:20,120 --> 00:31:24,570
Faili kupata CSV, kwamba inachukua
faili kushughulikia kama hoja yake,

713
00:31:24,570 --> 00:31:28,810
na kuendelea wakati huo, mfululizo, na
mstari, na mstari, kusoma mfululizo.

714
00:31:28,810 --> 00:31:30,964
Hivyo tu anayesoma line
Nakala kutoka faili.

715
00:31:30,964 --> 00:31:34,130
Lakini nini ni nzuri kuhusu kazi hii,
haina tu mkono mimi mstari wa maandishi.

716
00:31:34,130 --> 00:31:37,320
Inaonekana kwa koma hizo,
na parses line.

717
00:31:37,320 --> 00:31:41,740
Na kuchanganua mstari maana ya mgawanyiko
kwenye maadili fulani kwa mantiki hii.

718
00:31:41,740 --> 00:31:45,510
>> Kwa maneno mengine, ishara ya dola
mstari ni kutofautiana hiyo ni

719
00:31:45,510 --> 00:31:47,010
anaenda kunipa rundo la bahati.

720
00:31:47,010 --> 00:31:49,635
Hii ni kwenda kuwa
safu ya kwanza katika CSV yangu.

721
00:31:49,635 --> 00:31:52,510
Hii ni kwenda kuwa ya pili
safu, hii ni kwenda kuwa ya tatu,

722
00:31:52,510 --> 00:31:53,968
na hii ni kwenda kuwa nne.

723
00:31:53,968 --> 00:31:57,440
Kwa sababu wanakumbuka, na Excel si
kushirikiana mara ya mwisho sisi alifanya hivyo,

724
00:31:57,440 --> 00:32:03,350
lakini kama mimi kushusha wafanyakazi dot CSV.

725
00:32:03,350 --> 00:32:04,940
Lo, si kubadili jina.

726
00:32:04,940 --> 00:32:09,120
Kama mimi download wafanyakazi nukta
CSV, na kujaribu kufungua hiyo,

727
00:32:09,120 --> 00:32:12,510
Nimekuwa tayari registered-- loo mimi
hawakuwa update Excel tangu wakati wa mwisho.

728
00:32:12,510 --> 00:32:15,880
Utaona kwamba katika wafanyakazi nukta
CSV, nina nguzo nne.

729
00:32:15,880 --> 00:32:18,720
Hivyo wakati mimi kusoma katika
safu ya kwanza kwa Abby hapa,

730
00:32:18,720 --> 00:32:23,582
dola ishara mstari 0 ni Abby,
dola ishara mstari mmoja ni Lyons,

731
00:32:23,582 --> 00:32:27,740
dola ishara mstari wawili ni idadi yake,
na kisha carrier simu yake.

732
00:32:27,740 --> 00:32:28,410
>> Hivyo kwamba ni yote.

733
00:32:28,410 --> 00:32:30,740
Na hiyo ndiyo nzuri, kwa sababu mimi
Si lazima sasa kufikiri

734
00:32:30,740 --> 00:32:32,800
ambapo wote wa koma wale kweli ni.

735
00:32:32,800 --> 00:32:35,300
Hivyo mimi nina kwenda mbele na
kufanya hivyo, kutokana na kwamba ufafanuzi,

736
00:32:35,300 --> 00:32:38,960
Mimi nina kwenda kusema kwamba jina lake ni
mfululizo mabano sifuri, kama alivyoahidi.

737
00:32:38,960 --> 00:32:41,150
Na mimi nina kwenda kwa grab-- na
kweli, unajua nini?

738
00:32:41,150 --> 00:32:42,780
Sitakuja na wasiwasi kuhusu
jina lake, katika kesi hii.

739
00:32:42,780 --> 00:32:43,988
Mimi nina kwenda kuitunza rahisi.

740
00:32:43,988 --> 00:32:48,610
Mimi nina kwenda kufanya idadi yake ni
mfululizo mabano mbili, nadhani.

741
00:32:48,610 --> 00:32:50,510
Na carrier wake alikuwa katika wapi?

742
00:32:50,510 --> 00:32:53,405
Mstari tatu, moja juu.

743
00:32:53,405 --> 00:32:54,280
Hivyo hakuna jipya huko.

744
00:32:54,280 --> 00:32:56,770
Ni zero tu Indexing katika safu.

745
00:32:56,770 --> 00:32:58,760
>> Na sasa, mimi nina kwenda kufanya yafuatayo.

746
00:32:58,760 --> 00:33:03,930
Kama carrier sawa sawa na AT & T--
Mimi tu kwenda na loop--

747
00:33:03,930 --> 00:33:06,790
Nataka kujenga email
anwani hiyo inaonekana kama hii.

748
00:33:06,790 --> 00:33:12,320
Ni kwenda kuwa 617-555-1212
katika, ni nini, text.ATT.net,

749
00:33:12,320 --> 00:33:13,490
ni nini nataka kufanya.

750
00:33:13,490 --> 00:33:15,260
Hivyo ni jinsi gani mimi kufanya hivyo?

751
00:33:15,260 --> 00:33:16,730
Mimi nina kwenda kufanya yafuatayo.

752
00:33:16,730 --> 00:33:22,460
Hotuba yake ni kwenda kuwa idadi yake,
na sasa, basi mimi kwenda mbele na kufanya hili.

753
00:33:22,460 --> 00:33:23,760
Hii ni baadhi syntax funky.

754
00:33:23,760 --> 00:33:27,250
Mimi naweza kufanya asilimia s hila,
lakini siwezi kweli tu kufanya hivyo.

755
00:33:27,250 --> 00:33:29,900
>> Hivyo hii ni PHP kitu, lakini
hebu fikiria nini mimi kufanya.

756
00:33:29,900 --> 00:33:31,630
Dola ishara anuani ya
kushoto, tu kutofautiana.

757
00:33:31,630 --> 00:33:32,300
Nipe kutofautiana.

758
00:33:32,300 --> 00:33:33,390
Sina kutaja aina.

759
00:33:33,390 --> 00:33:34,570
PHP itakuwa takwimu ni nje.

760
00:33:34,570 --> 00:33:36,580
Upande wa kulia,
nini aina data

761
00:33:36,580 --> 00:33:38,399
ya kwamba jambo zima juu ya
upande wa kulia?

762
00:33:38,399 --> 00:33:40,190
Inaonekana kama kamba,
kwa sababu kuna mara mbili

763
00:33:40,190 --> 00:33:42,280
ananukuu juu ya mbali kushoto na haki ya mbali.

764
00:33:42,280 --> 00:33:44,210
Sasa kuna baadhi funky mpya syntax hapa.

765
00:33:44,210 --> 00:33:47,550
Kuna braces curly,
na ishara ya dola idadi.

766
00:33:47,550 --> 00:33:52,860
Lakini kuchukua nadhani nini ni kwamba syntax
pengine kuwaambia PHP kufanya kwa ajili yangu?

767
00:33:52,860 --> 00:33:53,360
Naam.

768
00:33:53,360 --> 00:33:54,630
Tu kuingiza thamani huko.

769
00:33:54,630 --> 00:33:55,530
Hivyo asilimia hakuna s.

770
00:33:55,530 --> 00:33:58,160
Tunaweza kutumia magazeti f, au s
magazeti f au kitu kama hiyo,

771
00:33:58,160 --> 00:34:00,070
lakini PHP na mengi ya
Lugha ngazi ya juu,

772
00:34:00,070 --> 00:34:03,070
wewe ni kwenda kuona kwamba unaweza
kufanya kitu kimoja functionally, labda

773
00:34:03,070 --> 00:34:04,019
njia sita tofauti.

774
00:34:04,019 --> 00:34:06,310
Na hivyo kuanza kuwa
suala la kubuni au mtindo.

775
00:34:06,310 --> 00:34:09,902
Hivyo hii ni tu cryptic kuangalia njia
ya kusema, nipe barua pepe,

776
00:34:09,902 --> 00:34:12,110
lakini kuziba-katika idadi katika
kati ya hizi braces curly.

777
00:34:12,110 --> 00:34:15,440
Na braces curly si
kuishia katika hotuba ya mwisho.

778
00:34:15,440 --> 00:34:18,010
>> Sasa tunaweza ruka juu ya baadhi ya
mistari haya kwa ajili ya muda.

779
00:34:18,010 --> 00:34:21,210
Hivyo kama carrier sawa na
sawa verHorizon-- whoops,

780
00:34:21,210 --> 00:34:24,989
Verizon-- mimi wanataka kufanya kitu
sawa sana, ambapo anwani anapata,

781
00:34:24,989 --> 00:34:27,569
quote, unquote, idadi katika text.ATT.net.

782
00:34:27,569 --> 00:34:30,380

783
00:34:30,380 --> 00:34:35,050
Na kisha siwezi kufanya aina hiyo ya
Jambo ajili ya mapumziko ya flygbolag.

784
00:34:35,050 --> 00:34:37,090
Lakini mimi itabidi kufanya dot, dot, dot kwa sasa.

785
00:34:37,090 --> 00:34:43,050
Na sasa hebu tuseme kwamba
Nataka kuongeza safu, kushinikiza.

786
00:34:43,050 --> 00:34:45,969
Nataka kuongeza kwa
safu, iitwayo anwani.

787
00:34:45,969 --> 00:34:50,409
>> Anwani hii, hii ni jinsi gani
kuongeza kitu kwa safu katika PHP.

788
00:34:50,409 --> 00:34:51,610
Huna haja ya kufanya malloc.

789
00:34:51,610 --> 00:34:53,068
Huwezi kuwa resize safu.

790
00:34:53,068 --> 00:34:54,259
Wewe tu kusema safu, kushinikiza.

791
00:34:54,259 --> 00:34:57,300
Je, unataka push-- nini safu
Je, unataka kushinikiza kitu kwenye?

792
00:34:57,300 --> 00:34:58,000
Anwani.

793
00:34:58,000 --> 00:34:59,550
Nini unataka kushinikiza kwenye anwani za?

794
00:34:59,550 --> 00:35:00,350
Mahali.

795
00:35:00,350 --> 00:35:02,430
Na kwa kweli, kama wewe
kweli unataka kuwa wajanja,

796
00:35:02,430 --> 00:35:05,610
baadhi sukari kisintaksia
kwa hili, ili kuzungumza,

797
00:35:05,610 --> 00:35:10,230
ambayo ina maana tu jinsi gani unaweza kufanya hivyo katika
njia prettier, itakuwa kufanya hivyo.

798
00:35:10,230 --> 00:35:14,060
Hiyo pia ina athari ya kuongezeka
anwani safu na ukubwa moja,

799
00:35:14,060 --> 00:35:17,130
na kisha plop kwamba ziada
barua pepe ndani yake.

800
00:35:17,130 --> 00:35:17,630
Naam.

801
00:35:17,630 --> 00:35:19,730
>> Watazamaji: [inaudible]

802
00:35:19,730 --> 00:35:22,520
>> SPIKA 1: typo juu ya
kingine if-- loo, carrier.

803
00:35:22,520 --> 00:35:23,070
Hiyo ni sawa.

804
00:35:23,070 --> 00:35:26,971
Pia si kama kushindwa yangu kwa
kutekeleza sehemu ya mpango huu

805
00:35:26,971 --> 00:35:27,470
baadae.

806
00:35:27,470 --> 00:35:28,810
Lakini asante kwa ajili ya kuambukizwa.

807
00:35:28,810 --> 00:35:30,671
Moja zaidi mdudu.

808
00:35:30,671 --> 00:35:31,170
Asante.

809
00:35:31,170 --> 00:35:33,746
Tunataka kuwa huu ni Vtext.com.

810
00:35:33,746 --> 00:35:34,340
Ndiyo.

811
00:35:34,340 --> 00:35:34,839
Sawa.

812
00:35:34,839 --> 00:35:36,330
Hivyo ambapo gani hii kutuacha?

813
00:35:36,330 --> 00:35:38,224
Tumekuwa imeandikwa kificho kwa kufungua faili.

814
00:35:38,224 --> 00:35:40,390
Tuna kitanzi iterate
zaidi ya mistari katika faili.

815
00:35:40,390 --> 00:35:43,650
Tuna kificho kwamba anaongeza kwa yangu
safu, moja kwa wakati mmoja, kwa usahihi

816
00:35:43,650 --> 00:35:44,790
mpangilio barua pepe.

817
00:35:44,790 --> 00:35:48,480
Basi wote kwamba kweli bado ni kutuma
email kwa kila mmoja wa watu hawa.

818
00:35:48,480 --> 00:35:52,830
>> Hivyo nimekuwa wamekwenda mbele na
wameandaliwa mwenyewe kama ifuatavyo.

819
00:35:52,830 --> 00:35:59,580
Nini mimi kwenda kufanya hapa is-- na hebu
kwenda mbele na ruka kwa baadhi ya kanuni halisi,

820
00:35:59,580 --> 00:36:00,620
ambayo inaonekana kama hii.

821
00:36:00,620 --> 00:36:02,950
Hivyo hapa ni kabla ya Motoni
toleo la niliandika hapo awali.

822
00:36:02,950 --> 00:36:04,700
Na taarifa mimi kumaliza
utekelezaji Sprint.

823
00:36:04,700 --> 00:36:06,130
Mimi kumaliza utekelezaji wa T-Mkono.

824
00:36:06,130 --> 00:36:08,020
Mimi kumaliza utekelezaji wa Bikira Mkono.

825
00:36:08,020 --> 00:36:09,622
Nami kuomba msamaha mapema.

826
00:36:09,622 --> 00:36:12,080
Kuna flygbolag chache ambazo
wanafunzi baadhi katika darasa na

827
00:36:12,080 --> 00:36:14,640
kwamba Sikutaka enumerating
katika kama hali hapa.

828
00:36:14,640 --> 00:36:16,015
Hivyo si maandiko yote kwenda nje.

829
00:36:16,015 --> 00:36:17,556
Lakini hebu angalia kile kingine mimi haja ya kufanya.

830
00:36:17,556 --> 00:36:19,660
Mimi karibu faili, tu
kama katika p kuweka minne.

831
00:36:19,660 --> 00:36:20,835
>> Na hii ni syntax mpya.

832
00:36:20,835 --> 00:36:22,710
Na tutaweza kuona kidogo
kidogo ya hii baada ya muda,

833
00:36:22,710 --> 00:36:24,450
hasa kwa p kuweka saba na nane.

834
00:36:24,450 --> 00:36:28,140
Lakini hii ni syntax kwa ajili ya kujenga
aina maalum ya muundo.

835
00:36:28,140 --> 00:36:31,490
Ni zinageuka kuna maktaba ambayo
kuja na PHP, aitwaye PHP mailer.

836
00:36:31,490 --> 00:36:33,840
Madhumuni yake katika maisha ni
programmatically kutuma barua pepe.

837
00:36:33,840 --> 00:36:36,840
Ni kificho mtu mwingine aliandika kwamba
inafanya kuwa rahisi kwa sisi kutuma barua pepe,

838
00:36:36,840 --> 00:36:39,131
hivyo hatuna kuweka
kwenda na kurudi kwa Gmail,

839
00:36:39,131 --> 00:36:41,151
na pasting katika anuani za barua pepe za watu.

840
00:36:41,151 --> 00:36:44,150
Kuna kundi zima la mistari hapa
kwamba kwa uaminifu, mimi tu aina ya kunakiliwa

841
00:36:44,150 --> 00:36:45,660
na pasted kutoka nyaraka.

842
00:36:45,660 --> 00:36:47,409
Na kwa kweli, kama wewe ni
wadadisi, niliondoka zote

843
00:36:47,409 --> 00:36:50,550
ya URL ya nyaraka
katika kificho kwamba tutaweza baada baadaye.

844
00:36:50,550 --> 00:36:52,360
Na taarifa kwamba miongoni mwa
mambo mimi nina kufanya

845
00:36:52,360 --> 00:36:55,710
ni, mimi nina kuwaambia maktaba hii,
kutumia kompyuta Gmail, sawa?

846
00:36:55,710 --> 00:36:59,360
SMTP sisi aliyesema ufupi kuhusu wakati sisi
walikuwa katika Yale juu ya kuwa rahisi pepe

847
00:36:59,360 --> 00:37:00,110
uhamisho itifaki.

848
00:37:00,110 --> 00:37:02,920
Ni itifaki ambayo
watumishi kutumika kwa kutuma barua pepe,

849
00:37:02,920 --> 00:37:05,150
na that's-- Gmail ina moja ya hizo.

850
00:37:05,150 --> 00:37:07,290
Bandari, hii ni TCP bandari idadi.

851
00:37:07,290 --> 00:37:09,630
Ni faini kama wewe
hawajaona 587 kabla.

852
00:37:09,630 --> 00:37:11,420
Tu kujua kwamba kutoka nyaraka.

853
00:37:11,420 --> 00:37:12,250
Hapa ni jina la mtumiaji yangu.

854
00:37:12,250 --> 00:37:13,670
Mimi nina kwenda kutumia CF50 bot.

855
00:37:13,670 --> 00:37:16,690
Na katika wakati huu, mimi nina kwenda tu kwa
aina katika halisi nywila bot ya.

856
00:37:16,690 --> 00:37:18,690
Na kisha chini hapa, taarifa kilichobaki.

857
00:37:18,690 --> 00:37:22,840
>> Mimi kuweka yangu kutoka anwani
kuwa BoT katika CS50.net.

858
00:37:22,840 --> 00:37:26,240
Nadhani mimi si majuto kutuma
watu ujumbe wa maandishi kwa 800 kuwa

859
00:37:26,240 --> 00:37:30,590
anasema, miss you, upendo CS50 bot, pengine
kwa wale ambao hawakuweza kufanya hivyo leo.

860
00:37:30,590 --> 00:37:33,160
Na kisha katika mstari 76, nini mimi?

861
00:37:33,160 --> 00:37:39,010
Aina hii ya inaonekana kama C. Hivyo kwa i
sawa 0, n equals-- sasa kuhesabu ni mpya.

862
00:37:39,010 --> 00:37:42,077
Ni zinageuka kuwa kama unataka kupata
idadi ya mambo katika safu,

863
00:37:42,077 --> 00:37:43,660
huna kukumbuka tena.

864
00:37:43,660 --> 00:37:45,370
Unaweza kuuliza tu
kazi kuitwa kuhesabu,

865
00:37:45,370 --> 00:37:48,320
na itakuambia jinsi wengi
anwani ni katika safu hiyo.

866
00:37:48,320 --> 00:37:53,210
>> Na kisha mimi nina kwenda kuongeza
hotuba yake kwa barua pepe.

867
00:37:53,210 --> 00:37:55,090
Na Mimi najua hili kutokana na
kutumia nyaraka.

868
00:37:55,090 --> 00:37:56,900
Kuna kuongeza anuani kazi.

869
00:37:56,900 --> 00:37:58,980
Na sasa taarifa pale
ni kipande kimoja cha syntax.

870
00:37:58,980 --> 00:38:01,470
Tumeona hii kabla
katika C. Sawa katika roho.

871
00:38:01,470 --> 00:38:04,100
Unaweza kufikiria ishara ya dola
barua kama kutofautiana, ambayo ni.

872
00:38:04,100 --> 00:38:08,100
Lakini ni struct ndani ya
ambayo si tu mali,

873
00:38:08,100 --> 00:38:09,400
vigezo kama wewe.

874
00:38:09,400 --> 00:38:13,480
Lakini zinageuka kuwa katika PHP, ambayo
ni kitu oriented programu

875
00:38:13,480 --> 00:38:16,520
lugha, kama Java kama wewe alichukua APCS.

876
00:38:16,520 --> 00:38:21,420
>> Dola ishara pepe, kama unataka to--
pia ina kazi ndani yake,

877
00:38:21,420 --> 00:38:22,380
au mbinu.

878
00:38:22,380 --> 00:38:24,720
Hivyo hii ni kusema kwamba
maalum PHP mailer

879
00:38:24,720 --> 00:38:29,280
maktaba, ikiwa mimi nimepata kutofautiana yake,
kama nataka kuita kazi ambayo

880
00:38:29,280 --> 00:38:31,559
kuja na kwamba maktaba,
kwa madhumuni ya leo,

881
00:38:31,559 --> 00:38:33,100
tu kujua wewe kutumia mshale nukuu.

882
00:38:33,100 --> 00:38:34,150
Hakuna dot nukuu.

883
00:38:34,150 --> 00:38:35,220
Ni tu mshale.

884
00:38:35,220 --> 00:38:36,380
Lakini si kwamba pointer.

885
00:38:36,380 --> 00:38:38,680
Ni tu zilizokopwa kutoka C ya syntax.

886
00:38:38,680 --> 00:38:43,620
Hivyo wito kuongeza anwani ndani ya
kitu maktaba hii ya au kutofautiana.

887
00:38:43,620 --> 00:38:44,440
>> Sawa.

888
00:38:44,440 --> 00:38:45,570
Hii ni mstari kichawi.

889
00:38:45,570 --> 00:38:46,740
Hayo ni jinsi mimi kutuma barua pepe.

890
00:38:46,740 --> 00:38:50,040
Hiyo ni sawa na kufungua
Gmail, kuandika ni nje, na kupiga kutuma.

891
00:38:50,040 --> 00:38:54,870
Lakini itakuja badala kutuma
email kwa anwani hii, na mwili huu,

892
00:38:54,870 --> 00:38:57,120
kutoka CS50 bot.

893
00:38:57,120 --> 00:38:58,710
Na sasa mstari muhimu.

894
00:38:58,710 --> 00:39:03,130
Mstari hili watoro katika kama 2011
wakati mimi nadhani mwisho walijaribu hii.

895
00:39:03,130 --> 00:39:05,640
Kuwa mstari wa huko, bila shaka,
clears anwani.

896
00:39:05,640 --> 00:39:07,920
Hivyo mantiki, kama mimi
si wazi anuani

897
00:39:07,920 --> 00:39:11,740
baada ya kila iteration, kwanza
barua pepe au ujumbe wa maandishi huenda kwa Alice,

898
00:39:11,740 --> 00:39:14,320
pili inakwenda
Alice na Bob, wa tatu

899
00:39:14,320 --> 00:39:17,870
huenda kwa Alice na Bob na Charlie,
hivyo makosa ghali sana

900
00:39:17,870 --> 00:39:18,760
Mimi alifanya mwaka huo.

901
00:39:18,760 --> 00:39:21,080
>> Basi hebu angalia.

902
00:39:21,080 --> 00:39:24,200
Je, kuna maswali
kabla ya sisi kukutumia Nakala wote

903
00:39:24,200 --> 00:39:28,210
Ujumbe kwa asilimia 10 uwezekano?

904
00:39:28,210 --> 00:39:28,940
Maswali yoyote?

905
00:39:28,940 --> 00:39:30,330
Sawa.

906
00:39:30,330 --> 00:39:36,100
Hebu niende katika hapa na mabadiliko
password nini wanapaswa kufanya kazi,

907
00:39:36,100 --> 00:39:37,780
kuna uwezekano kupata blacklisted na Gmail.

908
00:39:37,780 --> 00:39:39,821
Hivyo wao wanaweza wote kwenda
nje, kwani wao pengine

909
00:39:39,821 --> 00:39:42,960
si kama sisi kutuma barua pepe 800
katika kwa kitanzi wote mara moja.

910
00:39:42,960 --> 00:39:45,140
Tangu si kwamba
tabia hasa za binadamu.

911
00:39:45,140 --> 00:39:47,460
>> Oh, mimi nina kwenda na mabadiliko jambo moja nyingine.

912
00:39:47,460 --> 00:39:50,850
Juu kwa juu, mimi nina kwenda kwa sent--
mabadiliko ya faili kwa wanafunzi dot CSV.

913
00:39:50,850 --> 00:39:55,420
Na sitawafungulia hii, lakini hii ni
CSV faili kufanana na si 100 wafanyakazi,

914
00:39:55,420 --> 00:39:58,970
lakini 800 ya wanafunzi, tu
kutoka Harvard, kwa sababu Yale

915
00:39:58,970 --> 00:40:00,207
ina Oktoba kipindi cha mapumziko ya wiki hii.

916
00:40:00,207 --> 00:40:03,290
Na inaonekana kama aina ya jerk kitu
kufanya kwa maandishi wote ni kwa nini

917
00:40:03,290 --> 00:40:04,750
wao siyo katika darasa juu ya likizo.

918
00:40:04,750 --> 00:40:05,250
Hiyo ni sawa.

919
00:40:05,250 --> 00:40:08,310
Tu Harvard wanafunzi
leo ndani ya faili hilo.

920
00:40:08,310 --> 00:40:12,320
Na sasa hebu kwenda nyuma
terminal dirisha yangu.

921
00:40:12,320 --> 00:40:13,710
Mimi nina aina ya neva.

922
00:40:13,710 --> 00:40:22,000
>> OK hivyo sasa mimi nina kwenda katika
directory, na PHP asilia nukta PHP.

923
00:40:22,000 --> 00:40:24,950
Vipi kuhusu moja jasiri kujitolea?

924
00:40:24,950 --> 00:40:26,690
Hivyo Sitaki hii juu yangu.

925
00:40:26,690 --> 00:40:28,410
OK, kuja juu juu.

926
00:40:28,410 --> 00:40:29,162
Jina lako ni nini?

927
00:40:29,162 --> 00:40:29,662
MAYA: Maya.

928
00:40:29,662 --> 00:40:30,328
SPIKA 1: Maya.

929
00:40:30,328 --> 00:40:31,610
Kuja juu juu, Maya.

930
00:40:31,610 --> 00:40:34,120
Sawa.

931
00:40:34,120 --> 00:40:35,389
Hebu angalia kama hii kazi.

932
00:40:35,389 --> 00:40:38,430
Mimi kuweka barua pepe yangu mwenyewe katika
file-- simu yangu mwenyewe idadi katika file,

933
00:40:38,430 --> 00:40:40,110
ili hopefully mimi itabidi kupata moja pia.

934
00:40:40,110 --> 00:40:40,819
Vyema kukutana na wewe.

935
00:40:40,819 --> 00:40:41,443
MAYA: Hali kadhalika.

936
00:40:41,443 --> 00:40:44,510
SPIKA 1: Basi wote una kufanya ni
hit Enter kutuma ujumbe wa maandishi 800,

937
00:40:44,510 --> 00:40:45,466
kama sikuwa screw up.

938
00:40:45,466 --> 00:40:51,106

939
00:40:51,106 --> 00:40:51,606
Nzuri.

940
00:40:51,606 --> 00:40:55,556

941
00:40:55,556 --> 00:40:58,430
Inaweza kuchukua muda, takwimu,
mpaka sisi kupata barua pepe address--

942
00:40:58,430 --> 00:41:00,573
ujumbe wa maandishi kwamba ni
katika chumba hivi sasa.

943
00:41:00,573 --> 00:41:03,880

944
00:41:03,880 --> 00:41:05,390
Hebu tuwama na kuona.

945
00:41:05,390 --> 00:41:06,940
>> Watazamaji: [whistling]

946
00:41:06,940 --> 00:41:08,270
>> SPIKA 1: Naam.

947
00:41:08,270 --> 00:41:09,230
>> Watazamaji: Oh, gotcha.

948
00:41:09,230 --> 00:41:16,720

949
00:41:16,720 --> 00:41:19,180
>> SPIKA 1: Kwa mizunguko are-- hii
si mwepesi kwa sababu ya PHP.

950
00:41:19,180 --> 00:41:21,810
Hii ni ndogo kwa sababu Gmail
ni throttling sisi na si

951
00:41:21,810 --> 00:41:25,170
kuruhusu sisi kutuma zaidi ya
kama email moja kwa pili.

952
00:41:25,170 --> 00:41:26,300
Chochote?

953
00:41:26,300 --> 00:41:29,990
Hii ilikuwa ni jambo gumu kwangu kwa mtihani katika
nyumbani kwangu tu na simu yangu moja, hivyo.

954
00:41:29,990 --> 00:41:37,630

955
00:41:37,630 --> 00:41:41,111
Ni kwamba hopefully kutoka bot?

956
00:41:41,111 --> 00:41:41,610
Ndiyo?

957
00:41:41,610 --> 00:41:42,110
Hakuna?

958
00:41:42,110 --> 00:41:44,760

959
00:41:44,760 --> 00:41:46,620
Kusema ndiyo.

960
00:41:46,620 --> 00:41:47,479
Hakuna?

961
00:41:47,479 --> 00:41:49,374
Ni kutoka kwa rafiki?

962
00:41:49,374 --> 00:41:49,874
Awkward.

963
00:41:49,874 --> 00:41:50,374
SAWA.

964
00:41:50,374 --> 00:41:56,580

965
00:41:56,580 --> 00:42:00,090
Pretty sure ni kazi ingawa.

966
00:42:00,090 --> 00:42:00,910
Lo.

967
00:42:00,910 --> 00:42:03,190
Wao black-- loo, kusubiri dakika.

968
00:42:03,190 --> 00:42:04,280
Loo, unajua nini?

969
00:42:04,280 --> 00:42:06,100
Wakati mmoja tafadhali.

970
00:42:06,100 --> 00:42:07,802
Tu Maya na I-- Mia, kwa nani?

971
00:42:07,802 --> 00:42:08,301
MAYA: Maya.

972
00:42:08,301 --> 00:42:12,110
SPIKA 1: Maya, ni kwenda
kujua nini mimi vibaya hapa.

973
00:42:12,110 --> 00:42:14,890
Ah, kusubiri dakika.

974
00:42:14,890 --> 00:42:23,320
Nadhani tu alimtuma 100
ujumbe wa maandishi kwa 555-1212.

975
00:42:23,320 --> 00:42:24,346
Kusimama kwa.

976
00:42:24,346 --> 00:42:28,080

977
00:42:28,080 --> 00:42:29,270
Siwezi kushinda mwaka wowote.

978
00:42:29,270 --> 00:42:30,180
SAWA.

979
00:42:30,180 --> 00:42:30,680
Maya?

980
00:42:30,680 --> 00:42:33,530

981
00:42:33,530 --> 00:42:36,219
Kurekebisha kwamba katika uzalishaji baada.

982
00:42:36,219 --> 00:42:36,718
Dammit!

983
00:42:36,718 --> 00:42:39,430

984
00:42:39,430 --> 00:42:40,390
Kufuatia kutoka mahali.

985
00:42:40,390 --> 00:42:41,301
OK, kusimama kwa.

986
00:42:41,301 --> 00:42:41,800
Pole.

987
00:42:41,800 --> 00:42:44,550

988
00:42:44,550 --> 00:42:47,080
Ni chungu kila mwaka.

989
00:42:47,080 --> 00:42:48,640
OK, wakati mmoja.

990
00:42:48,640 --> 00:42:50,530
Hii ni nzuri.

991
00:42:50,530 --> 00:42:54,010
Mimi badala kwenda kufanya hili.

992
00:42:54,010 --> 00:42:55,470
Magazeti ya mahali.

993
00:42:55,470 --> 00:42:56,030
OK, kusimama kwa.

994
00:42:56,030 --> 00:43:01,340
Magazeti anwani, mabano i.

995
00:43:01,340 --> 00:43:02,710
Yeah, mimi kama hiyo.

996
00:43:02,710 --> 00:43:10,220
Dola sign-- sawa mimi itabidi kueleza kile mimi nina
kufanya katika wakati huu, baada Nimekuwa kukimbia hii.

997
00:43:10,220 --> 00:43:11,670
Kila mwaka.

998
00:43:11,670 --> 00:43:13,125
OK, hapa sisi kwenda.

999
00:43:13,125 --> 00:43:15,750
Nina just-- na sitaki
kuonyesha kila mtu namba ya simu,

1000
00:43:15,750 --> 00:43:17,740
lakini Maya anaweza kuthibitisha
na nod ya kichwa,

1001
00:43:17,740 --> 00:43:20,800
kwamba yeye anaona kila mtu
namba ya simu darasani

1002
00:43:20,800 --> 00:43:26,750
kwamba mimi nina kwenda kwa nakala katika
mpango ujulikanao Gmail.

1003
00:43:26,750 --> 00:43:30,860
Na kama katika Gmail, je, tunataka kusema nini?

1004
00:43:30,860 --> 00:43:32,137
Nimekukumbuka.

1005
00:43:32,137 --> 00:43:33,220
Love-- si kwamba kutoka kwangu.

1006
00:43:33,220 --> 00:43:35,230
Mimi si hata kugonga kutuma bado.

1007
00:43:35,230 --> 00:43:39,450
Basi hebu kwenda mbele na kufanya
hii, kama naweza kuvuta.

1008
00:43:39,450 --> 00:43:40,300
SAWA.

1009
00:43:40,300 --> 00:43:42,480
Hivyo mimi nina kutumia programu inayoitwa Gmail sasa.

1010
00:43:42,480 --> 00:43:44,490
Kama Maya, Ningependa
bonyeza Tuma kifungo,

1011
00:43:44,490 --> 00:43:46,970
sisi kuiga yale ambayo
kificho lazima waliofanya.

1012
00:43:46,970 --> 00:43:54,630

1013
00:43:54,630 --> 00:43:55,254
>> Chochote?

1014
00:43:55,254 --> 00:43:56,062
>> [Beeps]

1015
00:43:56,062 --> 00:43:56,870
>> Watazamaji: Yep.

1016
00:43:56,870 --> 00:43:58,030
>> SPIKA 1: Ndiyo?

1017
00:43:58,030 --> 00:43:59,210
Ukombozi?

1018
00:43:59,210 --> 00:44:00,427
>> Watazamaji: Yep.

1019
00:44:00,427 --> 00:44:01,260
SPIKA 1: Miss wewe.

1020
00:44:01,260 --> 00:44:02,718
Na mimi nina kwenda kupeleka nje ya mapumziko.

1021
00:44:02,718 --> 00:44:06,060
Mimi alimtuma nje nusu kwa sababu sikuweza kufikiri
Gmail ingekuwa basi wale kwenda kupitia.

1022
00:44:06,060 --> 00:44:12,410
Hivyo kumbuka tu, leo ni siku
uliyojifunza kwamba naweza kutumia Gmail.

1023
00:44:12,410 --> 00:44:14,977

1024
00:44:14,977 --> 00:44:15,810
Hiyo ilikuwa ni ya kutisha.

1025
00:44:15,810 --> 00:44:17,140
Makofi kubwa kwa Maya.

1026
00:44:17,140 --> 00:44:18,980
Asante.

1027
00:44:18,980 --> 00:44:21,280
Haki wote, hivyo.

1028
00:44:21,280 --> 00:44:22,210
nini

1029
00:44:22,210 --> 00:44:23,140
>> [Beeps]

1030
00:44:23,140 --> 00:44:25,010

1031
00:44:25,010 --> 00:44:26,580
>> Tulipata beeps chache, ndiyo?

1032
00:44:26,580 --> 00:44:27,080
Sawa.

1033
00:44:27,080 --> 00:44:30,590
Sasa mimi nina kwenda kupata 700 kwa kweli
barua pepe furaha nyuma kutoka wanafunzi.

1034
00:44:30,590 --> 00:44:32,400
Ili angalau tutaweza kuona
kama hiyo ilikuwa ni ya thamani yake.

1035
00:44:32,400 --> 00:44:33,300
Hivyo nini potoka?

1036
00:44:33,300 --> 00:44:35,300
Mimi itabidi kufikiri nini alikwenda
vibaya baada ya kweli,

1037
00:44:35,300 --> 00:44:38,340
lakini tu kuangalia jinsi rahisi
ilikuwa kufanya hivyo katika PHP.

1038
00:44:38,340 --> 00:44:44,598
Basi nini tunaweza kweli kufanya sasa kwamba
tuna expressiveness hii ya PHP.

1039
00:44:44,598 --> 00:44:45,970
Hiyo was-- hiyo ilikuwa ya kutisha.

1040
00:44:45,970 --> 00:44:46,480
Sawa.

1041
00:44:46,480 --> 00:44:48,430
Ili kwamba ilikuwa kile lazima wamekwenda nje.

1042
00:44:48,430 --> 00:44:52,770
Hii ilikuwa me kupima leo asubuhi juu ya yangu
simu, ungependa halisi ya simu yangu.

1043
00:44:52,770 --> 00:44:56,180
>> Lakini sasa hebu fikiria kwa nini
sisi ni kweli kuanzisha

1044
00:44:56,180 --> 00:44:57,840
yote ya mambo haya katika nafasi ya kwanza.

1045
00:44:57,840 --> 00:45:01,625
Hivyo lengo ni si kwa
kuandika mipango haya kwamba

1046
00:45:01,625 --> 00:45:03,250
yameandikwa katika mstari amri, sawa?

1047
00:45:03,250 --> 00:45:05,000
Hivyo mimi aliandika rahisi
hodi mpango, niliandika

1048
00:45:05,000 --> 00:45:09,155
mpango kidogo kwamba hana conditionals,
na kutumika kusoma mstari na kadhalika.

1049
00:45:09,155 --> 00:45:11,530
Na katika nadharia, mimi tu aliandika
mpango huo kupelekwa nje

1050
00:45:11,530 --> 00:45:14,290
Ujumbe wa maandishi 800, kutoa au kuchukua 800.

1051
00:45:14,290 --> 00:45:16,830
Na mpango huo ilikuwa wote
bado kukimbia katika mstari amri.

1052
00:45:16,830 --> 00:45:18,538
Na kwamba bila shaka ni
si mtandao, sawa?

1053
00:45:18,538 --> 00:45:22,160
Lengo sasa ni kuanza kutumia
kile wanadai ni rahisi kutumia

1054
00:45:22,160 --> 00:45:24,720
lugha, daresay zaidi
lugha ya nguvu katika suala

1055
00:45:24,720 --> 00:45:27,104
ya sifa ya kuwa
kuja na hilo, kuanza

1056
00:45:27,104 --> 00:45:29,850
kuandika kificho kwamba inazalisha kurasa za mtandao.

1057
00:45:29,850 --> 00:45:33,248
>> Hivyo mara ya mwisho na wiki iliyopita,
kuongelea HTTP na HTML.

1058
00:45:33,248 --> 00:45:36,350
Na nini ni nzuri kuhusu HTML
ni kwamba ni maandishi tu safi.

1059
00:45:36,350 --> 00:45:38,220
Na asilia shaka ni
kitu ambacho unaweza

1060
00:45:38,220 --> 00:45:42,040
magazeti na literally wito magazeti
f kazi, au magazeti kazi.

1061
00:45:42,040 --> 00:45:46,160
Na hakika, hilo ndilo PHP ni
sasa kwenda kuruhusu tufanye.

1062
00:45:46,160 --> 00:45:48,610
Hivyo miongoni mwa mifano sisi
na katika chanzo kanuni ya leo,

1063
00:45:48,610 --> 00:45:51,610
pamoja na baadhi ya maadili
kwamba mimi kuweka huko wakati iliyopita,

1064
00:45:51,610 --> 00:45:55,440
tuna mipango kama hii kwa mfano.

1065
00:45:55,440 --> 00:45:58,760
Froshims, au Freshman
Intramural Sports, kwa kweli

1066
00:45:58,760 --> 00:46:01,500
moja ya kwanza extracurriculars
I got wanaohusika na miaka iliyopita.

1067
00:46:01,500 --> 00:46:03,750
Na rafiki yangu na mimi, na
baadhi ya watoto wengine juu ya chuo,

1068
00:46:03,750 --> 00:46:05,280
kutumika kuendesha mpango froshims.

1069
00:46:05,280 --> 00:46:07,420
Mimi nina kupata ujumbe wangu maandishi sasa.

1070
00:46:07,420 --> 00:46:14,030
>> Sasa hivyo sisi, nyuma katika siku, hivyo hii
Ilikuwa 1996 au hivyo, kulikuwa na biashara,

1071
00:46:14,030 --> 00:46:17,395
lakini hapakuwa na process-- huko
hapakuwa na tovuti kwa ajili ya froshims.

1072
00:46:17,395 --> 00:46:20,270
Na hivyo kama alitaka ishara kwa ajili ya
soka au mpira wa wavu au chochote,

1073
00:46:20,270 --> 00:46:22,240
ungependa kujaza jambo hili
aitwaye kipande cha karatasi,

1074
00:46:22,240 --> 00:46:25,060
na ungependa kutembea katika Harvard
yadi, na ungependa slide ni

1075
00:46:25,060 --> 00:46:29,230
ndani ya barua yanayopangwa ya mwangalizi, ambaye
Ilikuwa katika Wigglesworth, mmoja wa mabweni.

1076
00:46:29,230 --> 00:46:31,270
Na hii walikuwa wewe waliojiandikisha.

1077
00:46:31,270 --> 00:46:33,570
Na yeye au yeye ingekuwa kisha
kutunga barua pepe na wewe

1078
00:46:33,570 --> 00:46:36,514
mikono, kiasi kama mimi
tu alifanya hapa na Maya,

1079
00:46:36,514 --> 00:46:38,930
na basi ingekuwa kuwa imara
kama baada ya kusajiliwa.

1080
00:46:38,930 --> 00:46:40,840
>> Hivyo hii ilikuwa kama chini
kunyongwa matunda, hivyo kusema.

1081
00:46:40,840 --> 00:46:42,930
Ilikuwa ni aina ya kijinga kwamba
tungetumia karatasi kwa ajili hii.

1082
00:46:42,930 --> 00:46:45,024
Nilitaka sisi kuwa na uwezo
tu kwenda kwenye tovuti,

1083
00:46:45,024 --> 00:46:47,440
au kuwa na freshmen kwenda juu
tovuti, kujiandikisha kwa ajili ya michezo,

1084
00:46:47,440 --> 00:46:50,398
na tu aŭtomate mengi ya mambo haya
kwa kuweka majina yao na barua pepe

1085
00:46:50,398 --> 00:46:51,850
na kadhalika katika orodha.

1086
00:46:51,850 --> 00:46:56,510
Na kwa kweli, toleo la kwanza sana
ya tovuti, kwa kutumia HTML super mbaya,

1087
00:46:56,510 --> 00:46:58,195
anaweza kuwa inaonekana kitu kama hiki.

1088
00:46:58,195 --> 00:47:01,070
Ni kweli, hazijaingizwa zaidi
aibu kuangalia zaidi kuliko nyuma hii

1089
00:47:01,070 --> 00:47:01,460
kisha.

1090
00:47:01,460 --> 00:47:02,890
Lakini Nilikuwa lugha ya programu.

1091
00:47:02,890 --> 00:47:06,060
Si PHP, lakini badala ya wito Perl,
ambayo ni lugha ya wakubwa,

1092
00:47:06,060 --> 00:47:07,251
lakini sawa sana katika ulimwengu wa kiroho.

1093
00:47:07,251 --> 00:47:09,000
Na mimi tu kabisa
kufundishwa kwa mwenyewe.

1094
00:47:09,000 --> 00:47:12,208
Na ilichukua yangu wakati ukafikirie,
kuuliza maswali mengi ya marafiki.

1095
00:47:12,208 --> 00:47:14,080
Lakini mawazo huko
walikuwa sawa.

1096
00:47:14,080 --> 00:47:18,050
Kwa sababu gani PHP kwa kweli alikuwa iliyoundwa kwa
kwa siyo mambo mstari amri

1097
00:47:18,050 --> 00:47:20,450
sisi tu alicheza na,
lakini kwa programu ya mtandao.

1098
00:47:20,450 --> 00:47:24,960
>> Ni kweli amefungwa katika hulka yake
kuweka mtandao, kama ifuatavyo.

1099
00:47:24,960 --> 00:47:26,370
Hii ni froshims.

1100
00:47:26,370 --> 00:47:28,720
Na kama nilitaka
kujiandikisha katika fomu hii,

1101
00:47:28,720 --> 00:47:30,930
hii ni mbaya kabisa,
hakika, lakini basi mimi kwenda mbele

1102
00:47:30,930 --> 00:47:34,440
na kuwa mwanafunzi chini ya starehe,
na chochote michezo kwa Matthews,

1103
00:47:34,440 --> 00:47:35,630
bonyeza Daftari.

1104
00:47:35,630 --> 00:47:39,780
Nini nataka kuwa na uwezo wa kufanya ni
kuwasilisha taarifa kutoka fomu,

1105
00:47:39,780 --> 00:47:42,400
si kwa kompyuta Google kama
tulivyofanya mara ya mwisho, kabisa

1106
00:47:42,400 --> 00:47:47,100
udanganyifu kwa kutumia mazingira ya nyuma yao, mimi
wanataka kutekeleza backend yangu mwenyewe kificho.

1107
00:47:47,100 --> 00:47:51,410
Ambayo ina maana kuandika PHP
kificho kwamba anaishi katika URL

1108
00:47:51,410 --> 00:47:54,180
kwamba data za fomu inaweza kuwasilishwa kwa.

1109
00:47:54,180 --> 00:47:57,510
>> Na kisha kanuni yako,
imeandikwa katika PHP kwenye server,

1110
00:47:57,510 --> 00:47:59,400
Basi unaweza kujibu pembejeo kwamba mtumiaji.

1111
00:47:59,400 --> 00:48:03,287
Kama yake jina, au faraja ngazi,
au Dorm, na kisha kufanya kitu kwa hayo.

1112
00:48:03,287 --> 00:48:05,120
Katika kesi hiyo, mimi tu
stupidly kuchapishwa nje

1113
00:48:05,120 --> 00:48:06,750
kama maandishi, ambayo si wote kwamba mrembo.

1114
00:48:06,750 --> 00:48:09,590
Lakini naweza hakika
kufikiria, kama unajua HTML,

1115
00:48:09,590 --> 00:48:13,010
na utasikia hivi karibuni kujua jinsi ya kuzalisha
HTML kwa magazeti f, na magazeti,

1116
00:48:13,010 --> 00:48:16,500
na kazi kama hiyo, unaweza hakika
kuzalisha prettier mtandao ukurasa kwamba anasema,

1117
00:48:16,500 --> 00:48:17,929
hey Daudi, wewe ni sasa kusajiliwa.

1118
00:48:17,929 --> 00:48:20,220
Wewe ni chini ya starehe
mwanafunzi kutoka Matthews, sawa?

1119
00:48:20,220 --> 00:48:23,880
>> Unaweza kutumia tu rundo zima la% ses,
au braces curly na ishara ya dola

1120
00:48:23,880 --> 00:48:27,750
nukuu Nilikuwa wakati iliyopita, kwa
kuzalisha Nakala hiyo ni zaidi user kirafiki

1121
00:48:27,750 --> 00:48:28,567
kuliko huu.

1122
00:48:28,567 --> 00:48:30,150
Basi hebu tuangalie faili hili moja.

1123
00:48:30,150 --> 00:48:34,666
Froshim sifuri nukta PHP inaonekana kama hii.

1124
00:48:34,666 --> 00:48:37,860

1125
00:48:37,860 --> 00:48:43,500
Wakati mimi upya CS50 IDE,
froshim sifuri inaonekana kama hii.

1126
00:48:43,500 --> 00:48:45,700
Hii ni froshim sifuri nukta PHP.

1127
00:48:45,700 --> 00:48:47,730
Na je, taarifa kuhusu faili hili?

1128
00:48:47,730 --> 00:48:49,506
>> Watazamaji: [inaudible]

1129
00:48:49,506 --> 00:48:50,922
SPIKA 1: Samahani, kidogo nguvu zaidi?

1130
00:48:50,922 --> 00:48:53,250
Watazamaji: [inaudible] Ni yote katika HTML.

1131
00:48:53,250 --> 00:48:57,130
Na kwa kweli, ni kwa sababu
nini kuvutia kuhusu PHP

1132
00:48:57,130 --> 00:48:58,880
ni kwamba ilitengenezwa
kuwa, kwa bora

1133
00:48:58,880 --> 00:49:02,110
au mbaya, intermingled
kwa HTML code.

1134
00:49:02,110 --> 00:49:05,850
Na kwa kweli, hata kama hii
file, froshim sifuri nukta PHP,

1135
00:49:05,850 --> 00:49:11,470
ina PHP maoni juu
yake, ni wote tu HTML.

1136
00:49:11,470 --> 00:49:17,655
Lakini kwa upande mwingine, kama mimi kufungua, hebu
kusema, kusajili sifuri nukta PHP, ambayo

1137
00:49:17,655 --> 00:49:19,550
tu ana maoni kubwa kwa juu.

1138
00:49:19,550 --> 00:49:26,500
Hii pia inaonekana karibu kabisa
kama HTML, isipokuwa kwa nini?

1139
00:49:26,500 --> 00:49:29,350
Mstari, nini, 21 inaonekana weird kidogo.

1140
00:49:29,350 --> 00:49:32,739
>> Lakini taarifa mimi nina kuingia PHP hali ya
na mabano wazi alama swali PHP.

1141
00:49:32,739 --> 00:49:33,780
Kisha mimi nimepata baadhi ya mambo.

1142
00:49:33,780 --> 00:49:36,724
Na kisha mwishoni mwa mstari huo
karibu nina, swali alama PHP.

1143
00:49:36,724 --> 00:49:38,390
Na hii ni nini maana na intermingled.

1144
00:49:38,390 --> 00:49:41,910
Unaweza kuandika HTML kwamba wewe tu
wanataka server kwa mate nje.

1145
00:49:41,910 --> 00:49:45,090
Lakini kama unataka kufanya kitu
partway nguvu kupitia ukurasa,

1146
00:49:45,090 --> 00:49:47,699
kama kuingiza jina langu au
Dorm au faraja ngazi,

1147
00:49:47,699 --> 00:49:49,490
Naweza kutumia kazi
kama magazeti r, ambayo ni

1148
00:49:49,490 --> 00:49:52,492
magazeti kujirudia, ambayo ina maana tu
magazeti nje kutofautiana hii, formatting ni

1149
00:49:52,492 --> 00:49:53,200
hata hivyo unataka.

1150
00:49:53,200 --> 00:49:55,880
Ni kweli si kwa
madhumuni ya binadamu, ni tu

1151
00:49:55,880 --> 00:49:58,290
kwa debugging au madhumuni ya uchunguzi.

1152
00:49:58,290 --> 00:49:59,460
Hivyo hiyo ni jinsi mimi alifanya hivyo.

1153
00:49:59,460 --> 00:50:06,100
>> Kama mimi badala froshims kwenda mbili nukta PHP,
taarifa kwamba hatua ya aina hii

1154
00:50:06,100 --> 00:50:09,680
haijasajiliwa sifuri nukta PHP kama
old-- kweli mmoja uliopita alikuwa.

1155
00:50:09,680 --> 00:50:11,222
Lakini ni kusajiliwa mbili nukta PHP.

1156
00:50:11,222 --> 00:50:13,680
Basi hebu tuangalie jinsi hii moja
kutenda tofauti kidogo.

1157
00:50:13,680 --> 00:50:15,140
Kama mimi kwenda katika toleo mbili.

1158
00:50:15,140 --> 00:50:20,430
Kama hapa, kama mimi kujiandikisha kama Daudi chini,
starehe, kutoka Dorm wa Mathews,

1159
00:50:20,430 --> 00:50:21,480
kujiandikisha.

1160
00:50:21,480 --> 00:50:23,770
Hivyo wakati huu ilisema, wewe
wamejiandikisha, si kweli.

1161
00:50:23,770 --> 00:50:25,370
Hebu kuona nini mimi hapa.

1162
00:50:25,370 --> 00:50:29,760
Kama mimi kuangalia daftari mbili nukta
PHP, hii ina baadhi ya PHP zaidi kificho.

1163
00:50:29,760 --> 00:50:35,410
Ni safi kidogo, ingawa
bado Wraps kidogo kwa muda mrefu juu ya mstari huu.

1164
00:50:35,410 --> 00:50:36,260
Taarifa hapa.

1165
00:50:36,260 --> 00:50:40,300
Mimi magazeti nje HTML tag yangu, kichwa tag wangu,
jina langu tag, kichwa, mwili.

1166
00:50:40,300 --> 00:50:45,410
>> Na kisha mimi kuanza kusema
mambo kama kuingia PHP mode.

1167
00:50:45,410 --> 00:50:48,540
Na hivyo tag kwamba, wazi bracket
PHP-- swali chapa PHP anasema,

1168
00:50:48,540 --> 00:50:53,460
hey, kompyuta, execute-- kutafsiri
mambo yafuatayo kama PHP

1169
00:50:53,460 --> 00:50:55,030
mpaka kuona tag mwisho.

1170
00:50:55,030 --> 00:50:58,590
Na hata kama unaweza kujua lolote
PHP zaidi wameweza kuona hivi sasa,

1171
00:50:58,590 --> 00:51:01,290
unaweza aina ya kusoma
ni pretty shirikishi.

1172
00:51:01,290 --> 00:51:10,670
Kama jina ni tupu, au faraja ni
tupu, au Dorm ni tupu, nini mimi?

1173
00:51:10,670 --> 00:51:12,830
Je, nasema kwa mtumiaji?

1174
00:51:12,830 --> 00:51:15,330
Lazima kutoa jina lako,
faraja, na mabweni, na kadhalika.

1175
00:51:15,330 --> 00:51:17,750
Kingine, nasema wewe ni
kusajiliwa, vizuri si kweli.

1176
00:51:17,750 --> 00:51:19,190
>> Na mimi kusema si kweli
kwa sababu hakuna database.

1177
00:51:19,190 --> 00:51:20,200
Mimi si kufanya kitu chochote na data.

1178
00:51:20,200 --> 00:51:22,408
Mimi tu kutupa mbali
kwa madhumuni ya maandamano.

1179
00:51:22,408 --> 00:51:24,320
Sasa mimi aina ya skimped juu ya mstari 22.

1180
00:51:24,320 --> 00:51:26,400
Kuna zaidi syntax
pale, lakini ishara ya dola

1181
00:51:26,400 --> 00:51:28,320
kusisitiza baada ni aina ya kuvutia.

1182
00:51:28,320 --> 00:51:30,300
Na hii ni nini ni nzuri kuhusu PHP.

1183
00:51:30,300 --> 00:51:35,610
Katika PHP, una kile kinachojulikana
chache super vigezo kimataifa.

1184
00:51:35,610 --> 00:51:38,430
Wao ni aina ya hata zaidi
muhimu kuliko vigezo kimataifa.

1185
00:51:38,430 --> 00:51:41,370
Na hawa, kila mtaji
kama vile, kuja na PHP.

1186
00:51:41,370 --> 00:51:44,550
Hivyo kama una server ambayo ina
mtandao wa kompyuta imewekwa, kama Apache,

1187
00:51:44,550 --> 00:51:49,390
na kufunga lugha
msaada kwa ajili ya PHP, kwa ghafla wewe

1188
00:51:49,390 --> 00:51:52,250
unaweza kuanza kutumia hizi super
vigezo kimataifa katika kanuni yako.

1189
00:51:52,250 --> 00:51:54,330
>> Na nini ni nzuri kuhusu
PHP ni kwamba kama wewe tu

1190
00:51:54,330 --> 00:51:57,540
kuandika faili kwamba mwisho katika nukta
PHP, kuiweka kwenye mtandao kompyuta,

1191
00:51:57,540 --> 00:52:01,260
na kisha kuwasilisha fomu hiyo
kupitia kwamba tag hatua na tag fomu,

1192
00:52:01,260 --> 00:52:05,110
kwamba hatua sifa katika
tag fomu, PHP na mtandao

1193
00:52:05,110 --> 00:52:09,360
kabisa takwimu nje jinsi ya kunyakua
wote wa wale thamani jozi ufunguo nje

1194
00:52:09,360 --> 00:52:11,633
ya URL kama swali
alama q ni sawa na paka,

1195
00:52:11,633 --> 00:52:14,782
itakuwa kufikiri jinsi ya q na paka.

1196
00:52:14,782 --> 00:52:17,710
Kama kuwasilisha picha, au jina la mtumiaji,
au nenosiri ili kama Facebook,

1197
00:52:17,710 --> 00:52:21,360
PHP itakuwa kufikiri kwa ajili yenu
ambapo wote wa takwimu ambazo ni.

1198
00:52:21,360 --> 00:52:23,821
Na itakuwa tu mkono
wewe safu associative

1199
00:52:23,821 --> 00:52:27,560
aitwaye dola ishara kusisitiza baada,
au ishara ya dola kusisitiza kupata,

1200
00:52:27,560 --> 00:52:30,590
kutegemea kama wewe ni
kutumia get au baada ya maoni.

1201
00:52:30,590 --> 00:52:32,950
Na itakuwa tu mkono wewe
super kimataifa variable,

1202
00:52:32,950 --> 00:52:37,254
ili kwamba kama unataka kupata katika jina
kwamba mtumiaji kuwasilishwa kupitia kwamba mtandao

1203
00:52:37,254 --> 00:52:41,894
fomu, wewe literally tu kusema jina
ya super variable kimataifa, kunukuu,

1204
00:52:41,894 --> 00:52:43,380
unquote, jina.

1205
00:52:43,380 --> 00:52:46,144
Na kunukuu, faraja unquote,
na quote, unquote Dorm.

1206
00:52:46,144 --> 00:52:48,810
Na tunakwenda kuwa na uwezo wa kufanya
huu na hivyo zaidi na PHP.

1207
00:52:48,810 --> 00:52:50,540
Na hata kama hii ilikuwa
mtazamo kimbunga saa hiyo,

1208
00:52:50,540 --> 00:52:51,980
tutaweza kupiga mbizi katika mengi zaidi wiki ijayo.

1209
00:52:51,980 --> 00:52:54,247
Tutaweza kuanzisha database
hivyo kwamba wewe ni kweli

1210
00:52:54,247 --> 00:52:56,816
kwenda kuanza utekelezaji
e-biashara yako mwenyewe based--

1211
00:52:56,816 --> 00:52:59,150
kama tovuti kwa muda tu wiki.

1212
00:52:59,150 --> 00:53:02,750
Hivyo tutaweza kuona wewe wakati mwingine, na
matumaini wewe got ujumbe wa maandishi.

1213
00:53:02,750 --> 00:53:05,450
Bye.

1214
00:53:05,450 --> 00:53:06,950
>> [Music kucheza]

1215
00:53:06,950 --> 00:53:11,450

1216
00:53:11,450 --> 00:53:12,950
>> [DOOR UFUNGUZI]

1217
00:53:12,950 --> 00:53:14,475
>> SPIKA 2: Hey.

1218
00:53:14,475 --> 00:53:15,350
SPIKA 3: Nini juu?

1219
00:53:15,350 --> 00:53:17,750
SPIKA 2: unafanya nini?

1220
00:53:17,750 --> 00:53:19,850
SPIKA 3: Kazi ya kuweka tatizo.

1221
00:53:19,850 --> 00:53:21,050
SPIKA 2: Nice.

1222
00:53:21,050 --> 00:53:22,550
High tano.

1223
00:53:22,550 --> 00:53:23,150
>> [HIGH TANO]

1224
00:53:23,150 --> 00:53:25,584
>> Nini are-- uh, unafanya nini hapa?

1225
00:53:25,584 --> 00:53:26,750
SPIKA 3: kunyongwa Tu nje.

1226
00:53:26,750 --> 00:53:28,134
Tu got nyuma kutoka Gym.

1227
00:53:28,134 --> 00:53:30,050
Sikuweza kusaidia lakini
taarifa wakati sisi High-Fived,

1228
00:53:30,050 --> 00:53:32,450
kwamba una mikono pretty mbaya.

1229
00:53:32,450 --> 00:53:33,950
Je, kwenda kwa mazoezi?

1230
00:53:33,950 --> 00:53:35,150
>> SPIKA 2: Hapana

1231
00:53:35,150 --> 00:53:36,650
Hakuna

1232
00:53:36,650 --> 00:53:38,450
>> SPIKA 3: Dude, wewe kuangalia pretty kubwa.

1233
00:53:38,450 --> 00:53:45,950
Ambayo ni mbaya, kwa sababu kila mtu anajua
8-mpira ni mtu mkubwa juu ya chuo.

1234
00:53:45,950 --> 00:53:48,050
High tano.

1235
00:53:48,050 --> 00:53:49,550
>> SPIKA 2: A, no.

1236
00:53:49,550 --> 00:53:50,450
Hapana, nadhani mimi nina nzuri.

1237
00:53:50,450 --> 00:53:52,300
Nadhani mimi nina nzuri.

1238
00:53:52,300 --> 00:53:54,097