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>> SPIKA: Mimi nina [inaudible].

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Na mimi nina mwandamizi katika LEVERETT House.

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00:00:14,820 --> 00:00:18,700
Mimi kujifunza sayansi ya kompyuta,
na mimi nina TF kwa CS50.

5
00:00:18,700 --> 00:00:21,640
Kama Freshman, sikuweza hata kuwa
mbali au smartphone.

6
00:00:21,640 --> 00:00:23,550
Sikuwa na uzoefu wa programu.

7
00:00:23,550 --> 00:00:29,690
CS50 mara shaka wengi kukumbukwa kwamba
Mimi alichukua katika Harvard kwa sababu ilikuwa ni

8
00:00:29,690 --> 00:00:32,960
mapambano, lakini ilikuwa ni ya kweli
furaha mapambano kwa wakati mmoja.

9
00:00:32,960 --> 00:00:37,670
Na mimi alifanya mengi ya ajabu, ya kudumu
marafiki, na mimi kujifunza mengi ya kweli

10
00:00:37,670 --> 00:00:38,830
husika ujuzi.

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Mimi tu nimefurahi kwamba sikuwa basi yangu
ukosefu wa historia kuwa kisingizio kwa ajili yangu

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si kuchukua CS50.

13
00:00:44,840 --> 00:00:46,220
Mimi nina [inaudible].

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Mimi nina mwandamizi katika LEVERETT
Nyumba, darasa la 2014.

15
00:00:48,910 --> 00:00:51,670
Na mimi alichukua CS50.

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00:00:51,670 --> 00:00:52,380
>> DAVID Malan: Hivyo hii ni CS50.

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Hii ni mwisho wa wiki sifuri.

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Na kukumbuka ambapo tulianza mara ya mwisho,
alikuwa pamoja na taa hizi, ambao walikuwa

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hivyo maarufu kuwa sisi akaenda na
kununuliwa baadhi zaidi leo.

20
00:01:01,420 --> 00:01:03,790
Hivyo nadhani hii itakuwa
kitu wetu mwaka huu -

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dawati taa kama wewe kuja juu ya hatua,
angalau mpaka sisi kukimbia nje.

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>> Lakini sisi kutumika haya wanakumbuka, kuanzisha
misingi ya uwakilishi wa data.

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Sisi zinahitajika njia ya kuanza anayewakilisha
habari ndani ya kompyuta.

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Na njia rahisi ya kufanya hivyo mara
na moja kingo, umeme.

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Na kitu rahisi unaweza kufanya na
umeme ni rudi juu na ni mbali.

26
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Hebu mtiririko elektroni au la.

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Na kutumia wale majimbo mawili ya msingi, mbali
na juu, au ya uongo na ya kweli, au na sifuri

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moja, tulianza kuona kwamba tunaweza kujenga
juu, katika kesi hii, na mwanga

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balbu, idadi zaidi kuliko
tu sifuri na moja.

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Sisi kuhesabiwa kama juu kama saba,
kwa mfano, mara ya mwisho.

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Lakini wote sisi kufanya ni kuweka kutupa
zaidi na zaidi mwanga balbu saa kwamba

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tatizo na, kwa kweli, tunaweza kuwakilisha
idadi yoyote kwamba sisi

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ili uwezekano wanataka.

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>> Naam, sisi transitioned haraka basi juu ya
Jumatano hii Byte ya kujitolea.

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8 bits ni nini sisi ujumla kuwaita Byte,
hivyo hapa tulikuwa kujitolea nane

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Jumatano ambao kwa pamoja walikuwa
anayewakilisha bits nane.

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Na wakati mikono yao walikwenda
juu, wao walikuwa moja.

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Na wakati mikono yao yalikuwa
chini, kulikuwa na sifuri.

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Na tulikuwa na folks hizi
kuja juu ya kwa nini hatua?

40
00:02:01,970 --> 00:02:06,530
Nini sisi ni uwezo wa kufanya na
mlolongo huu wa bits?

41
00:02:06,530 --> 00:02:07,510
>> Kujenga alfabeti.

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Tulikuwa na uwezo wa kujenga juu ya kwamba
somo uliopita kujifunza na kwa kweli

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kuanza kufanya zaidi ya kuvutia
habari kwamba angalau zaidi

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ukoo kwa binadamu yetu.

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Na hii ni kwenda kuwa mara kwa mara
mandhari katika 50, lakini pia kompyuta

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sayansi kwa ujumla zaidi, hili wazo la
layering, ambapo, katika mwisho wa

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siku, kama kweli ilianza
misingi na kompyuta, ndiyo,

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ni zeros na ndio.

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Na chini ya kwamba ni
tu umeme.

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Lakini sisi haraka sana kuanza kuchukua wale
kiwango cha chini maelezo kwa nafasi

51
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na kuanza safu ya juu ya zamani kazi
kufanyika ili sisi, hatimaye, kwa

52
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mwisho wa muhula na, kwa kweli,
ujumla zaidi kama kompyuta wanasayansi

53
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na programmers, unaweza kufanya baadhi ya kweli
nguvu mambo kwa leveraging kazi

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kwamba sisi wenyewe wamefanya na pia
amesimama juu ya mabega ya wengine.

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>> Sasa sisi haraka transitioned Jumatano
kutoka tu wanaohitaji

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kuwakilisha taarifa kwa kutaka
kufanya kitu kwa hayo.

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Hivyo nini sisi kufafanua algorithm kama?

58
00:02:54,170 --> 00:02:57,340

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00:02:57,340 --> 00:02:58,900
mfululizo wa maelekezo.

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Hivyo ni mfululizo wa maelekezo,
Idadi ya hatua kwamba wewe, mwanadamu, au

61
00:03:03,380 --> 00:03:07,160
kompyuta kwa kawaida zaidi, ingekuwa
kutekeleza moja baada ya nyingine ili

62
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kufikia lengo.

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Na tulikuwa na malengo chache mara ya mwisho,
mmoja ulikuwa wa kuhesabu

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watu katika chumba.

65
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Na mfano mwingine vile ilikuwa kupata
Mike Smith katika kitabu cha simu.

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>> Hivyo unaweza kukumbuka kwamba mimi akararua simu
kitabu katika nusu ya kuelekea mwisho huu hadi

67
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kutafuta Mike Smith.

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Madhumuni ya Visual kwamba ilikuwa
kuonyesha, tena, kwamba tulikuwa

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literally akamtikisatikisa tatizo hili katika
nusu, katika nusu, katika nusu, na sana

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haraka kwenda kama kurasa 1000
kwa moja tu ukurasa mmoja.

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Wale ambao amekosa juu ya hii
Jumatano, Nilidhani tunatarajia kucheza nyuma

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baadhi Footage ya nini amekosa.

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Hebu tuangalie.

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>> [Video avspelning]

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00:03:40,906 --> 00:03:55,360

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>> -Kuna sisi kwenda.

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1500 kurasa, Nice safi mstari,
halali ya machozi.

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>> [MWISHO video avspelning]

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>> DAVID Malan: Basi hiyo ilikuwa Jumatano.

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Sisi mpito, ingawa, Jumatano sasa
kwa kutaka kuwakilisha algorithms

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katika baadhi ya njia fulani ya kiwango, si tu
wakielezea maneno, lakini

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kujaribu kueleza yao kwa maandishi au juu ya
screen kompyuta hivyo kwamba tunaweza

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kuanza kuboresha juu, na kurekebisha
yao, na hatimaye, kwa kweli

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kuchambua jinsi tu sahihi
au jinsi ya kufunga walikuwa.

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>> Hivyo sisi ilianzisha wazo hili
ya pseudocode, ambayo, kwa

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layman suala, ni nini?

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OK, maneno.

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Hebu kwenda undani kidogo kuliko hiyo.

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Kiingereza, hakika, lakini ni
kuelekea nini mwisho?

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00:04:32,540 --> 00:04:35,180
Maneno ambayo kwa kujenga au
kuwakilisha algorithms.

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00:04:35,180 --> 00:04:38,380
Hivyo hakuna lugha moja inayojulikana
kama pseudocode katika dunia.

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Ni kwamba tu wewe, kwa Kiingereza, au
chochote lugha yako amesema ni, kutumia

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aina ya nukuu haraka haraka kufikisha
wazo sana ufupi.

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Lakini tutaweza kuona kwamba, bila ya shaka na
Kiingereza pseudocode, na zinageuka

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wengi programu lugha wenyewe
ni derivative ya Kiingereza yenyewe,

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tutaweza kupata kwamba kuna baadhi ya kiwango
njia ya anayewakilisha pseudocode na

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pia programu ya kanuni.

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Hivyo kama unaweza kuanza kuona hata rahisi
mifano ya leo, kutambua haya

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chati huo chamka wiki ijayo.

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>> Hivyo pseudocode ilikuwa aina fulani
wa lugha ya yanafanana

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lugha ya programu.

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Na mfano wa kwanza tuliona kuibua
kuandikwa mara hii moja.

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00:05:09,260 --> 00:05:12,870
Ni mara tatu tu hatua ya mpango,
lengo la ambayo ilikuwa kuhesabu idadi

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ya watu katika chumba Dorm kwa
kwamba video ya Jumatano.

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Lakini kulikuwa na wachache mambo ya kuvutia
ya mpango huu rahisi.

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00:05:19,040 --> 00:05:20,320
>> Na hii itakuwa mara kwa mara mandhari.

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Hivyo kwa wale walio usio wa kawaida na
hii, moja, sisi ilianzisha kutofautiana.

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Na pengine kila mtu katika chumba hiki ni
ukoo na kutofautiana katika

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mazingira ya algebra.

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Lakini hapa katika programu, vigezo
ni, moja, unaweza kuwa

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kuitwa kitu tunataka.

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Tumekuwa kutumia n kama kukabiliana.

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Lakini tunaweza kutumia kukabiliana neno, au,
kama utaona, yoyote zaidi maneno ya kwamba

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unaweza kama hivyo muda mrefu kama ni
maelezo, lakini ni kweli tu

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kuhifadhi kontena.

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Ni chunk ya kumbukumbu, baadhi ya simu ya
bits, na inatofautiana na kompyuta, jinsi

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wengi bits kwamba kuna
kutunga kwamba kutofautiana.

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>> Lakini tunaweza kuweka maadili katika hilo.

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Hivi sasa, tumekuwa tu kuweka namba.

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Lakini tunaweza kuweka maneno halisi.

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Tunaweza kuweka aya.

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Tunaweza kuweka picha -

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kitu, kwa kweli, tunaweza kuwakilisha na
zeros na ndio, tunaweza kuweka katika

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hii dhana ya ngazi ya juu
ya kutofautiana.

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>> Hivyo pretty moja kwa moja mbele huko.

126
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Na kwamba ni mstari mmoja.

127
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Lakini sisi haraka sana wakiongozwa juu kutoka
mstari mmoja kwa kweli kufanya

128
00:06:05,340 --> 00:06:06,600
kitu na variable kwamba.

129
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Na katika mstari wa tatu, sisi updated tabia Sisi
incremented tabia Na tunaweza kuandika hii

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idadi yoyote ya njia.

131
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Lakini labda dhahiri zaidi ni
tu kusema, kuweka N sawa kwa

132
00:06:14,460 --> 00:06:16,440
chochote N ni pamoja na 1.

133
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Ili kwamba ilikuwa nyongeza yetu.

134
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>> Wakati huo huo, kulikuwa na kitanzi.

135
00:06:18,740 --> 00:06:20,720
Na hii moja, pia, pengine ni
pretty angavu.

136
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kitanzi ni tu kitu katika mpango
kinachotokea tena na tena, baadhi ya

137
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aina ya mzunguko.

138
00:06:25,190 --> 00:06:29,300
Na hii maneno muhimu hapa, kwa kila mmoja, ni
kweli ya kawaida sana katika zaidi

139
00:06:29,300 --> 00:06:32,300
programu lugha, ikiwa ni pamoja na
ndio tutaweza kuona katika shaka.

140
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Wakati wowote unaweza kuona neno kwa ajili ya, ni
kawaida zinaonyesha wazo kwamba

141
00:06:35,850 --> 00:06:38,410
kitanzi, kitu mzunguko,
ni kuhusu kutokea.

142
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>> Lakini ni muhimu kuzingatiya moja
nyingine kisintaksia undani.

143
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ukweli kwamba mstari wa tatu kuna
kweli indented na baada ya kugonga

144
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nafasi bar mara chache ni makusudi.

145
00:06:46,920 --> 00:06:49,870
Kwa sababu mkataba binadamu ni kuwa,
wakati wewe ni kufanya kitu tena na

146
00:06:49,870 --> 00:06:54,860
tena, katika kitanzi, kama imeanza kwenye line mbili,
wewe Indent chochote ambacho ni mali ya

147
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kwa kitanzi kwamba tu kufanya wazi kwamba
ni mstari tatu na si, kwa mfano,

148
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line nne au tano, kama kulikuwa na
mistari kwa ajili ya au tano, ambazo ni

149
00:07:01,910 --> 00:07:03,010
sehemu ya mizunguko hiyo.

150
00:07:03,010 --> 00:07:07,340
Hivyo hii anatengeneza rahisi
zinaonyesha kwamba wazo msingi.

151
00:07:07,340 --> 00:07:09,390
>> Hivyo sisi kutumika hii algorithm,
sasa, kwa mifano michache.

152
00:07:09,390 --> 00:07:12,620
Na hii, pia, mfano rahisi
katika ulimwengu halisi.

153
00:07:12,620 --> 00:07:15,440
Lakini inaenda kuwa mwakilishi wa
jinsi gani kwenda juu ya kupima yako

154
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wenyewe mipango inazidi tata.

155
00:07:17,500 --> 00:07:21,050
Wewe kujaribu matukio machache, baadhi ya
wawakilishi pembejeo, na kuona kama

156
00:07:21,050 --> 00:07:22,180
kupata matokeo ya taka.

157
00:07:22,180 --> 00:07:25,090
>> Hivyo mfano huu alikuwa na watu wawili
ameketi katika chumba Dorm.

158
00:07:25,090 --> 00:07:27,170
Upande wa kushoto ni kwamba huo kanuni Pseudo.

159
00:07:27,170 --> 00:07:30,800
Na hii ni risasi screen ya sana
mwisho hatua ya matumizi ya hii

160
00:07:30,800 --> 00:07:35,270
algorithm wa pembejeo hizo, ambapo kuna
walikuwa watu wawili katika chumba na,

161
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kukumbuka, kama sisi hatua kupitia mistari moja,
na mbili, na tatu, na wawili

162
00:07:39,190 --> 00:07:41,000
na tatu na kufanyika -

163
00:07:41,000 --> 00:07:44,870
na mwisho wa algorithm kwamba, tulikuwa
kweli kuhesabiwa wenzake wawili ambao ni

164
00:07:44,870 --> 00:07:45,360
katika chumba hicho.

165
00:07:45,360 --> 00:07:47,190
>> Hivyo basi sisi walijaribu mfano mwingine.

166
00:07:47,190 --> 00:07:48,990
Na sisi alisema nini kama kuna
sifuri watu katika chumba?

167
00:07:48,990 --> 00:07:50,490
Ni kanuni hii bado sahihi?

168
00:07:50,490 --> 00:07:51,305
Na kwa kweli ilikuwa.

169
00:07:51,305 --> 00:07:55,240
Ni hivyo tu hutokea kwamba line mbili
na, hivyo, mstari wa tatu au

170
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si kwenda kutekeleza.

171
00:07:56,620 --> 00:07:59,790
Wao siyo kwenda kutokea wakati wote
kwa sababu wao ni tu si husika kama

172
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kuna sifuri watu katika chumba.

173
00:08:01,210 --> 00:08:02,300
>> Lakini si kubwa mpango huo.

174
00:08:02,300 --> 00:08:06,620
Mstari mmoja initialized N na sifuri, hivyo
ingawa tu mstari mmoja wa hii

175
00:08:06,620 --> 00:08:10,930
mpango wa kweli kuishia kuwa muhimu,
bado mavuno jibu sahihi, kama

176
00:08:10,930 --> 00:08:13,780
unahitajika kwa rangi ya machungwa
sifuri chini.

177
00:08:13,780 --> 00:08:16,300
Lakini basi sisi aliamua kwamba ilikuwa
aina ya algorithm kijinga.

178
00:08:16,300 --> 00:08:17,060
Ni pretty polepole.

179
00:08:17,060 --> 00:08:19,720
Hakika, siwezi kufanya mbili, nne,
sita, nane, kumi, wakati

180
00:08:19,720 --> 00:08:20,990
kuhesabu watu katika chumba.

181
00:08:20,990 --> 00:08:25,030
>> Hivyo sisi tweaked algorithm,
pseudocode, na kusema, sasa katika line mbili,

182
00:08:25,030 --> 00:08:29,710
kwa kila jozi ya watu katika chumba,
kuendelea, katika mstari wa tatu, nyongeza ya

183
00:08:29,710 --> 00:08:32,200
katika na mbili juu ya kila iteration.

184
00:08:32,200 --> 00:08:35,530
Hivyo kwamba ingekuwa kazi hapa kwa ajili ya
hii jozi ya watu katika chumba.

185
00:08:35,530 --> 00:08:38,530
>> Lakini basi, kama wewe kuanza kufikiri juu ya
hii, na haina kuchukua muda mrefu

186
00:08:38,530 --> 00:08:40,710
kutambua, kusubiri dakika hii ni
kwenda kuvunja, inavunja

187
00:08:40,710 --> 00:08:42,679
saa nini rahisi kesi?

188
00:08:42,679 --> 00:08:45,500
Kama kuna watu watatu katika chumba au,
ujumla zaidi, wakati kuna

189
00:08:45,500 --> 00:08:47,660
isiyo ya kawaida idadi ya watu katika
chumba, ikiwa ni pamoja na moja.

190
00:08:47,660 --> 00:08:50,390
Tunataka miss kwamba mtu hapa kwa sababu
hakuna jozi hizo.

191
00:08:50,390 --> 00:08:58,510
Hivyo sisi haraka kushughulikiwa na badala yake
kuanzisha kile ziada

192
00:08:58,510 --> 00:09:02,560
programu constructs
kwa kificho Pseudo.

193
00:09:02,560 --> 00:09:04,955
>> Hivyo hali, sisi kuitwa
yake, au tawi.

194
00:09:04,955 --> 00:09:08,420
Na ni maana ya kufikisha, kuibua,
wazo la tawi, uma katika barabara

195
00:09:08,420 --> 00:09:11,080
ambapo unaweza ama kufanya hii
au, labda, kitu kingine.

196
00:09:11,080 --> 00:09:15,750
Na hakika, sisi kushughulikia suala hilo na
kuongeza line 4, kwa kusema, kweli, katika

197
00:09:15,750 --> 00:09:20,820
mwisho kabisa, kama mtu mmoja bado,
kisha kwenda mbele na kuhesabu yao maalum.

198
00:09:20,820 --> 00:09:24,460
Hivyo aina ya kesi maalum yao, hivyo
kuzungumza, hivyo kwamba sasa tunaweza kushughulikia

199
00:09:24,460 --> 00:09:27,810
wote wawili hata idadi ya watu
na idadi isiyo ya kawaida ya watu.

200
00:09:27,810 --> 00:09:30,260
>> Sasa kuna idadi ya njia
sisi inaweza kuwa walionyesha hii.

201
00:09:30,260 --> 00:09:33,590
Na kusema ukweli, mimi naweza tumekuwa hata zaidi
NIT picky wakati alikuja uchaguzi wangu wa

202
00:09:33,590 --> 00:09:35,040
Kiingereza kwa pseudocode.

203
00:09:35,040 --> 00:09:36,970
Lakini angalau roho ya
wazo ni ilifikia.

204
00:09:36,970 --> 00:09:40,725
Kama wewe mitupu kanuni hii kwa rafiki
ambao si katika CS, au hajawahi kuchukuliwa

205
00:09:40,725 --> 00:09:44,560
CS, ni tabia mbaya hawakuweza kufikiri,
kupewa watu watatu katika chumba, jinsi ya

206
00:09:44,560 --> 00:09:46,870
kuhesabu watu wale msingi
juu ya maelekezo haya.

207
00:09:46,870 --> 00:09:49,920
Na kwamba wote kweli tunataka kufikia
na pseudocode, kwa namna fulani

208
00:09:49,920 --> 00:09:54,300
standardize jinsi sisi ni kwenda juu
anayewakilisha mawazo ili tuweze

209
00:09:54,300 --> 00:09:56,670
kuanza kufanya ngumu zaidi
kitu bado.

210
00:09:56,670 --> 00:09:58,845
>> Hivyo kwamba inaongoza sisi basi, leo,
na kanuni halisi.

211
00:09:58,845 --> 00:10:01,950
Sisi kuanza kwa mpango leo, angalau
katika mazingira ya kirafiki.

212
00:10:01,950 --> 00:10:05,940
Na kisha sisi mpito kwa haraka sana kwa
syntax zaidi arcane, lakini moja ambayo

213
00:10:05,940 --> 00:10:10,340
utaona kimsingi ni sawa na
mawazo itakuwa kuona wazi na

214
00:10:10,340 --> 00:10:11,990
hii lugha nyingine leo.

215
00:10:11,990 --> 00:10:13,920
Ni tu kwenda kuangalia
tofauti kidogo.

216
00:10:13,920 --> 00:10:16,590
>> Hivyo badala ya kuwaita tu kanuni hii, mimi nina
kwenda kuwa zaidi kidogo sahihi

217
00:10:16,590 --> 00:10:20,170
na kusema, tangu sasa, wakati wa kuandika
mpango, wewe kuandika chanzo code.

218
00:10:20,170 --> 00:10:21,990
Ni aina ya pseudocode kama.

219
00:10:21,990 --> 00:10:26,540
Lakini tutaweza kuona siyo aina ya huru
linapokuja kuchagua maneno

220
00:10:26,540 --> 00:10:27,310
kwamba matumizi.

221
00:10:27,310 --> 00:10:31,300
Wakati Programing katika lugha, una
kutumia maneno, misemo,

222
00:10:31,300 --> 00:10:36,020
syntax, kwamba watu wengine
wameamua kuwakilisha

223
00:10:36,020 --> 00:10:37,240
kwamba lugha fulani.

224
00:10:37,240 --> 00:10:38,510
Hivyo pseudocodes ni juu yako.

225
00:10:38,510 --> 00:10:42,330
halisi programu lugha kama
C, kama tutaweza hatimaye kuona, ni

226
00:10:42,330 --> 00:10:43,590
sanifu na watu wengine.

227
00:10:43,590 --> 00:10:45,590
>> Hivyo ni jinsi gani sisi kwenda juu ya kuandika
baadhi ya kanuni chanzo?

228
00:10:45,590 --> 00:10:46,810
Naam, mimi nina kwenda
mbele na kufanya hii.

229
00:10:46,810 --> 00:10:49,100
Mimi nina kwenda mbele na
kufungua dirisha hapa.

230
00:10:49,100 --> 00:10:50,210
Zaidi juu ya wiki hii ijayo.

231
00:10:50,210 --> 00:10:52,300
Lakini hii ni chombo kinachoitwa
Appliance CS50.

232
00:10:52,300 --> 00:10:55,480
Mimi mbio juu ya kipande cha programu yangu
Mac, ingawa unaweza kufanya kitu kimoja

233
00:10:55,480 --> 00:11:00,580
kwenye kompyuta ya Windows, kwamba ni kutoa
mimi udanganyifu mbio mbalimbali

234
00:11:00,580 --> 00:11:03,700
mfumo wa uendeshaji wa kulia kabisa
hapa katika dirisha kwenye Mac yangu.

235
00:11:03,700 --> 00:11:06,790
Nimekuwa tu kamili kupimwa hivyo huna
kweli kuona Mac OS hivi sasa.

236
00:11:06,790 --> 00:11:08,340
>> Hii ni mfumo wa uendeshaji
kuitwa Linux.

237
00:11:08,340 --> 00:11:09,300
Ni maarufu sana.

238
00:11:09,300 --> 00:11:10,120
Ni haraka sana.

239
00:11:10,120 --> 00:11:12,950
Ni sana bure, ambayo imefanya ni sana
kulazimisha, hasa katika

240
00:11:12,950 --> 00:11:13,970
kibiashara duniani.

241
00:11:13,970 --> 00:11:17,200
Na zaidi juu ya kwamba mwishoni mwa
muhula wakati sisi kutumia Linux kidogo kabisa

242
00:11:17,200 --> 00:11:21,230
kwa ajili ya mtandao wa programu na mwenyeji
halisi ya Nje na miradi.

243
00:11:21,230 --> 00:11:24,910
Hivyo sasa, tu kujua kwamba hii ni desktop
kwamba maana ya kuangalia bila kufafanua

244
00:11:24,910 --> 00:11:26,750
ukoo kwa Windows na Mac OS.

245
00:11:26,750 --> 00:11:29,110
Ni tu ina baadhi ya majina tofauti
na icons kwa ajili ya mambo.

246
00:11:29,110 --> 00:11:32,510
Lakini hii ni CS50 kinachojulikana
appliance, mashine virtual kwamba,

247
00:11:32,510 --> 00:11:35,310
kuanzia wiki ijayo, you guys mapenzi
kukimbia ndani ya dirisha juu ya

248
00:11:35,310 --> 00:11:36,960
Mac yako mwenyewe au PC.

249
00:11:36,960 --> 00:11:39,760
>> Kwa leo, mimi nina kwenda kufungua
rahisi ya mipango.

250
00:11:39,760 --> 00:11:41,110
Ni wito gedit.

251
00:11:41,110 --> 00:11:42,565
Na hii ni mhariri graphical.

252
00:11:42,565 --> 00:11:44,695
Ni aina ya kama Microsoft
Neno, lakini rahisi.

253
00:11:44,695 --> 00:11:47,110
Ni aina ya maandishi kama
hariri au Notepad.

254
00:11:47,110 --> 00:11:50,280
Ni tu mpango rahisi sana na
ambayo kuandika maneno kwenye screen.

255
00:11:50,280 --> 00:11:54,510
Ni hivyo tu kile kinachotokea kwamba kama mimi ila
files kwamba mimi kujenga wakati mpango huu

256
00:11:54,510 --> 00:11:59,860
katika ugani maalum kama c., badala
ya. doc, au xls., au chochote

257
00:11:59,860 --> 00:12:04,190
wewe ni ukoo na, siwezi kwa kweli
kujenga mipango ya kutumia hata hii rahisi

258
00:12:04,190 --> 00:12:05,130
Nakala mhariri.

259
00:12:05,130 --> 00:12:05,770
>> Hivyo basi mimi kufanya hivyo.

260
00:12:05,770 --> 00:12:09,330
Hebu kwenda mbele na kuokoa hii
faili ya kwanza kama hello.c.

261
00:12:09,330 --> 00:12:12,350
Na tena, hii interface user mapenzi
kuwa ukoo na wewe haraka.

262
00:12:12,350 --> 00:12:14,160
Lakini kwa sasa, mimi nina kuandika tu
katika jina la faili.

263
00:12:14,160 --> 00:12:17,410
Mimi nina kwenda kuokoa ni katika Yohana yangu
Harvard nyumbani directory.

264
00:12:17,410 --> 00:12:20,810
Na sasa nina hii tab kwamba inaonyesha
Mimi nina hakika editing

265
00:12:20,810 --> 00:12:23,070
faili inayoitwa hello.c.

266
00:12:23,070 --> 00:12:24,510
Hivyo kitu pia kuvutia bado.

267
00:12:24,510 --> 00:12:26,000
>> Na sasa ni kwenda
kupata pretty fumbo.

268
00:12:26,000 --> 00:12:28,370
Mimi nina kwenda kuvuta, tu
hivyo ni kuonekana zaidi.

269
00:12:28,370 --> 00:12:35,780
Na mimi nina kwenda kuanza kuandika ni pamoja na
stdio.h, int kuu, utupu, wazi curly

270
00:12:35,780 --> 00:12:40,140
brace, moja, mbili, tatu, nafasi nne
ya anatengeneza, magazeti f, kwa ajili ya magazeti

271
00:12:40,140 --> 00:12:44,450
kitu mpangilio quote unquote,
"Hello, dunia" backslash, n, karibu

272
00:12:44,450 --> 00:12:49,640
quote, kufungwa mabano, semicolon,
kuingia backspace, backspace, backspace,

273
00:12:49,640 --> 00:12:52,310
backspace, imefungwa curly brace -

274
00:12:52,310 --> 00:12:53,350
Mimi iliyowekwa.

275
00:12:53,350 --> 00:12:57,380
>> Haki ya kila hivyo hii ni rahisi super
mpango, kwa kweli, mpango kwamba

276
00:12:57,380 --> 00:12:59,070
mtu yeyote kuanza mbali na programu.

277
00:12:59,070 --> 00:13:02,300
Na wote ni sawa, kwa ajili ya wake utata wote,
ni magazeti nje ya juu ya

278
00:13:02,300 --> 00:13:04,160
screen, nadhani nini?

279
00:13:04,160 --> 00:13:04,910
Hujambo dunia.

280
00:13:04,910 --> 00:13:07,500
Lakini siyo ya kutosha tu
kuandika mpango.

281
00:13:07,500 --> 00:13:08,155
Hivyo hii ni kanuni.

282
00:13:08,155 --> 00:13:11,300
Hii ni chanzo code katika
lugha inayoitwa c.

283
00:13:11,300 --> 00:13:14,380
Ni kuokolewa sasa katika
faili inayoitwa hello.c.

284
00:13:14,380 --> 00:13:16,180
>> Sasa kuangalia chini
ya screen hapa.

285
00:13:16,180 --> 00:13:17,890
Zaidi juu ya hili, tena, katika
wiki ijayo.

286
00:13:17,890 --> 00:13:19,570
Lakini hii ni nini Tutamwita
dirisha terminal.

287
00:13:19,570 --> 00:13:21,290
Ni blinking, nyeusi
na nyeupe haraka.

288
00:13:21,290 --> 00:13:24,390
Ni aina ya interface umri wa shule ya
kompyuta kwa ujumla haina

289
00:13:24,390 --> 00:13:27,050
kutumia panya au nyingine
graphical vipengele.

290
00:13:27,050 --> 00:13:28,320
Ni tu anatumia keyboard yako.

291
00:13:28,320 --> 00:13:30,970
Na siwezi aina amri katika
hii blinking haraka.

292
00:13:30,970 --> 00:13:33,820
>> Na kwa madhumuni ya leo, mimi nina tu
kwenda aina zifuatazo -

293
00:13:33,820 --> 00:13:35,610
kufanya hello.

294
00:13:35,610 --> 00:13:39,370
Na kwamba mpango, kufanya, ni tu
mpango kwamba, katika ulimwengu wa kweli haya

295
00:13:39,370 --> 00:13:40,690
siku, tunataka bonyeza mara mbili.

296
00:13:40,690 --> 00:13:44,580
Lakini katika hili interface kwa leo, tuko
kwenda aina ya jina lake katika hii haraka.

297
00:13:44,580 --> 00:13:47,980
kufanya hodi ni halisi kwenda
kufanya mimi programu inayoitwa hello.

298
00:13:47,980 --> 00:13:51,360
Na ni kwenda kufanya hivyo kwa kuangalia
kwa ajili ya faili, tu kwa

299
00:13:51,360 --> 00:13:53,460
default, aitwaye hello.c.

300
00:13:53,460 --> 00:13:57,260
Ni kwenda kudhani nataka mpango C
kwa asili ya kompyuta jinsi hii

301
00:13:57,260 --> 00:13:58,230
kimeundwa.

302
00:13:58,230 --> 00:13:59,550
>> Hivyo mimi kwenda mbele na hit kuingia.

303
00:13:59,550 --> 00:14:02,050
Mimi naona baadhi ya pato fumbo, lakini
hii itakuwa wote pia

304
00:14:02,050 --> 00:14:03,330
ukoo kabla ya muda mrefu.

305
00:14:03,330 --> 00:14:06,870
Hii ilitokea kwa kukimbia mkusanyaji, zaidi
juu ya kwamba katika wakati huu, aitwaye Clang.

306
00:14:06,870 --> 00:14:09,080
Lakini sasa, mimi nimepata mwingine tu
blinking haraka.

307
00:14:09,080 --> 00:14:13,060
Na siwezi kwenda mbele sasa na aina ya dot
kufyeka, kwa sababu uninteresting tutaweza

308
00:14:13,060 --> 00:14:14,730
kurudi wiki ijayo -

309
00:14:14,730 --> 00:14:15,910
hello.

310
00:14:15,910 --> 00:14:19,650
>> Hivyo wote wa juhudi hii hivi sasa tu
kuandika rahisi ya mipango ya kwamba,

311
00:14:19,650 --> 00:14:22,640
haraka kama mimi hit Enter, je, hiyo.

312
00:14:22,640 --> 00:14:24,510
Hivyo nimekuwa imeandikwa mpango wangu wa kwanza.

313
00:14:24,510 --> 00:14:27,500
Hivyo mimi nina furaha kwa makusudi poking
katika mpango huu rahisi sana

314
00:14:27,500 --> 00:14:28,540
kwa michache ya sababu.

315
00:14:28,540 --> 00:14:31,990
Moja, ni vigumu kupata msisimko
juu ya kuchukua darasani kama

316
00:14:31,990 --> 00:14:33,430
huu ni mchezo wa mwisho.

317
00:14:33,430 --> 00:14:37,100
>> Lakini zaidi ya hapo, kuna
mengi ya distractions hapa juu.

318
00:14:37,100 --> 00:14:40,640
mara ya kwanza kujifunza kwa mpango, kwa
wale wa wewe chini ya starehe, na

319
00:14:40,640 --> 00:14:43,410
hata mimi, nyuma katika siku, wakati mimi kwanza
niliona kitu kama hii - unaweza aina

320
00:14:43,410 --> 00:14:46,500
wa takwimu kwamba, wote haki, hii
ni katika ulimwengu wa magazeti hello.

321
00:14:46,500 --> 00:14:47,860
Lakini kuna mengi ovyo.

322
00:14:47,860 --> 00:14:52,110
Kuna mengi syntax kwenye screen
kwamba anapata katika njia ya sana

323
00:14:52,110 --> 00:14:54,170
rahisi, vinginevyo rahisi, mawazo.

324
00:14:54,170 --> 00:14:56,700
>> Basi nini tunakwenda kufanya leo ni tuko
kwenda kuweka kando C na kuja

325
00:14:56,700 --> 00:14:57,630
nyuma na kwamba siku ya Jumatatu.

326
00:14:57,630 --> 00:15:00,860
Na sisi ni kwenda kutumia graphical
programu lugha inayoitwa Scratch.

327
00:15:00,860 --> 00:15:04,470
Hii ni lugha ya programu, kwamba mimi
alluded juu ya Jumatano, kwamba kinaendelea

328
00:15:04,470 --> 00:15:08,870
kuruhusu yetu kufanya aina hiyo ya mambo ya
lakini kugeuka vipofu, kwa leo,

329
00:15:08,870 --> 00:15:12,270
kwa braces curly, mabano,
semicolons, na kijinga haya yote

330
00:15:12,270 --> 00:15:15,680
distractions kwamba kupata njia, katika
hii siku ya kwanza, ya baadhi ya msingi, pretty

331
00:15:15,680 --> 00:15:17,230
kuvutia mawazo.

332
00:15:17,230 --> 00:15:21,350
>> Hivyo kuelekea mwisho kwamba, mimi nina kwenda
nyuma ya desktop yangu zaidi ya hapa na

333
00:15:21,350 --> 00:15:25,890
kuanzisha wewe mbadala kwa kuwa
mpango, ambayo ni kwenda kuangalia

334
00:15:25,890 --> 00:15:30,790
kitu kidogo ya mwanga huu.

335
00:15:30,790 --> 00:15:33,930
Kwamba ni jinsi gani sisi ni kwenda kutekeleza kwamba
huo mpango leo - wawili puzzle

336
00:15:33,930 --> 00:15:37,710
vipande kwamba, wakati interlocked na
clicked juu, watasema kwa ulimwengu,

337
00:15:37,710 --> 00:15:39,000
hujambo dunia.

338
00:15:39,000 --> 00:15:41,200
>> Basi hebu kweli kwenda huko.

339
00:15:41,200 --> 00:15:44,965
Hivyo mimi nina kwenda mbele na kufungua
tovuti inayojulikana kama scratch.mit.edu.

340
00:15:44,965 --> 00:15:47,980

341
00:15:47,980 --> 00:15:52,040
Na hii itasababisha mimi
tovuti hii hapa.

342
00:15:52,040 --> 00:15:54,660
Mapema, nimekuwa watumiaji katika hii
tovuti na matatizo ya kwanza kwamba

343
00:15:54,660 --> 00:15:55,910
kutembea wewe kupitia
baadhi ya hatua hizi.

344
00:15:55,910 --> 00:15:58,930
Mimi nina kwenda mbele na bonyeza
juu ya mwanzo folder yangu hapa.

345
00:15:58,930 --> 00:16:00,720
>> Na hii ni kwenda kuonyesha yangu
baadhi ya miradi ambayo nimekuwa

346
00:16:00,720 --> 00:16:02,570
kweli kuundwa mapema.

347
00:16:02,570 --> 00:16:05,860
Na zinageuka kuwa hii grafiki
programu lugha si tu ni kwenda

348
00:16:05,860 --> 00:16:08,480
hebu mpango na akawatoa na
kuacha vipande hayo puzzle, wewe

349
00:16:08,480 --> 00:16:09,730
hawana hata haja ya programu maalum.

350
00:16:09,730 --> 00:16:13,190
Ni wote iliyoingia ndani ya browser hivyo
kwamba unaweza kufanya hivyo, katika nadharia, juu ya

351
00:16:13,190 --> 00:16:16,810
kompyuta yako sasa hivi, kama baadhi yenu
inaweza pia kuwa, bila hata wanaohitaji

352
00:16:16,810 --> 00:16:19,870
programu kama appliance CS50,
ambayo atakuja wiki ijayo.

353
00:16:19,870 --> 00:16:24,200
>> Hivyo mimi nina kwenda hadi kona ya juu
hapa na bonyeza Fungua.

354
00:16:24,200 --> 00:16:27,840
Na katika wakati mimi naenda kupata tupu
screen kupitia ambayo naweza kuanza

355
00:16:27,840 --> 00:16:30,380
programu katika hii grafiki
programu ya mazingira.

356
00:16:30,380 --> 00:16:36,140
Lakini wakati huu, ni kwenda kuwa na kiasi,
rahisi sana kwa kweli kufanya hivyo.

357
00:16:36,140 --> 00:16:41,560
Hivyo katika muda tu, wakati Wi-Fi
inashirikiana, sasa tuna hii screen.

358
00:16:41,560 --> 00:16:44,870
Hivyo haraka ziara matusi, lakini mimi kuthubutu kusema,
hakika wakati mbizi katika

359
00:16:44,870 --> 00:16:46,840
kwanza tatizo kuweka, itabidi
kupata hii sana wote

360
00:16:46,840 --> 00:16:48,315
kupatikana na haki angavu.

361
00:16:48,315 --> 00:16:50,900
Lakini hebu rangi picha ya akili
kwa muda tu.

362
00:16:50,900 --> 00:16:54,620
>> Hivyo chini ya hii haraka ila kusema
mabadiliko, uko juu ya kuona mwanzo.

363
00:16:54,620 --> 00:16:55,570
Hii ni sprite.

364
00:16:55,570 --> 00:16:56,630
Ni tabia.

365
00:16:56,630 --> 00:17:00,740
Na anaishi juu ya nini Tutamwita hatua,
hii kubwa nyeupe juu ya Mstatili

366
00:17:00,740 --> 00:17:03,120
ambayo anaweza kuhama juu, chini, kushoto,
haki, na kufanya, kwa kweli,

367
00:17:03,120 --> 00:17:04,670
aina nyingine ya vitendo.

368
00:17:04,670 --> 00:17:08,780
>> Wakati huo huo, katikati ya mtumiaji huyu
interface, tuna rundo zima la

369
00:17:08,780 --> 00:17:09,750
puzzle vipande vipande.

370
00:17:09,750 --> 00:17:14,060
Na utaona kuwa wanasema mambo kama
hoja ya hatua 10, akageuka digrii 15,

371
00:17:14,060 --> 00:17:15,550
hatua katika mwelekeo fulani.

372
00:17:15,550 --> 00:17:17,910
Lakini kuna makundi ya
vitalu hadi hapa pia.

373
00:17:17,910 --> 00:17:21,410
Hivyo kama mimi kwenda Looks, utaona kwamba
kuna wengine puzzle vipande kwamba

374
00:17:21,410 --> 00:17:25,530
inaonekana atakuambia hii cit kwa
kusema hello, kufikiri, kuonyesha

375
00:17:25,530 --> 00:17:26,780
mwenyewe, kujificha.

376
00:17:26,780 --> 00:17:30,830
Kama mimi kwenda chini kwa Sauti, zinageuka
kuna njia ya kucheza sauti kama meow,

377
00:17:30,830 --> 00:17:32,670
kuacha sauti zote, kucheza ngoma.

378
00:17:32,670 --> 00:17:36,530
>> Hivyo, muda mrefu hadithi fupi, kuna nzima
rundo la vipande puzzle kwamba kuruhusu

379
00:17:36,530 --> 00:17:40,920
kuwaambia hii paka, au idadi yoyote ya
wahusika wengine, nini cha kufanya.

380
00:17:40,920 --> 00:17:43,850
Lakini kwa kufanya haya yote kutokea wewe
haja ya kuanza programu.

381
00:17:43,850 --> 00:17:48,090
Na hii kubwa nyeupe sanduku, au kijivu sanduku, juu ya
upande wa kulia, hii ni wapi

382
00:17:48,090 --> 00:17:50,170
Mimi naenda kweli Drag na
kuacha vipande wale puzzle.

383
00:17:50,170 --> 00:17:54,320
Hiyo ni Nakala yangu tupu
dirisha sawa.

384
00:17:54,320 --> 00:17:57,070
>> Hivyo mimi nina kwenda mbele na bonyeza
Kudhibiti katikati.

385
00:17:57,070 --> 00:17:58,540
Au tuseme, napenda kuanza
hadi chini Matukio.

386
00:17:58,540 --> 00:18:01,530
Chini ya benchi Matukio, utasikia taarifa
chache mambo ambayo ni kwa makusudi

387
00:18:01,530 --> 00:18:05,240
ikiwa juu katika njia kwamba vile
wao pengine hawana interlock juu ya

388
00:18:05,240 --> 00:18:06,710
juu ya vipande puzzle.

389
00:18:06,710 --> 00:18:10,160
Na kwamba kwa sababu wao Demark kuanza
wa mpango, mwanzo wa

390
00:18:10,160 --> 00:18:11,910
script, hivyo kusema.

391
00:18:11,910 --> 00:18:16,290
Hivyo kama mimi kwenda mbele na Drag, wakati kijani
bendera clicked juu hapa, na kisha mimi

392
00:18:16,290 --> 00:18:18,060
wanataka paka hii ya kusema
kitu ya kwanza.

393
00:18:18,060 --> 00:18:20,510
Hivyo mimi nina kwenda chini
inaonekana jopo.

394
00:18:20,510 --> 00:18:24,060
Na mimi nina kwenda mbele na kunyakua
kusema hello kuzuia, na Drag, na kushuka,

395
00:18:24,060 --> 00:18:27,220
na basi kwenda hivyo kuwa moja kwa moja
interlocks huko.

396
00:18:27,220 --> 00:18:28,640
>> Na kisha taarifa naweza
bonyeza maandishi.

397
00:18:28,640 --> 00:18:31,960
Na siwezi override kuwa ni zaidi
maalum kama vile, kusema, hello dunia.

398
00:18:31,960 --> 00:18:36,340
Na sasa tuna mpango kwamba mimi kudai
ni sawa na kwamba mengi zaidi

399
00:18:36,340 --> 00:18:39,670
arcane mpango mimi kutekelezwa
katika C wakati iliyopita.

400
00:18:39,670 --> 00:18:43,130
>> Kama mimi kwenda juu, sasa kwa upande wa kushoto,
taarifa kuna kubwa kuacha ishara

401
00:18:43,130 --> 00:18:44,520
na kubwa ya kijani bendera.

402
00:18:44,520 --> 00:18:46,390
Hebu kuvuta kwa uwazi.

403
00:18:46,390 --> 00:18:49,390
Na wakati mimi sasa bonyeza hii bendera ya kijani,
pengine unaweza nadhani nini hii ya kwanza

404
00:18:49,390 --> 00:18:51,920
mpango wa sasa ni kwenda kufanya.

405
00:18:51,920 --> 00:18:55,420
Hivyo kuna, pia, sisi ni programu, lakini
sisi siyo kweli kupata yakidhoofishwa

406
00:18:55,420 --> 00:18:58,980
katika baadhi ya wale kisintaksia,
dakika ya maelezo.

407
00:18:58,980 --> 00:19:01,120
>> Lakini hebu jaribu kitu
kidogo zaidi ya kuvutia.

408
00:19:01,120 --> 00:19:04,840
Hebu kwenda katika Scratch folder yangu hapa.

409
00:19:04,840 --> 00:19:10,210
Na kweli, basi mimi hivyo basi mimi kufungua
Mpango tofauti hapa kwa ajili tu ya

410
00:19:10,210 --> 00:19:17,830
huu, Maximo dirisha hili, Picha Open,
na mimi nina kwenda katika leo

411
00:19:17,830 --> 00:19:18,620
chanzo directory.

412
00:19:18,620 --> 00:19:21,660
Kama kawaida, utapata, na leo
kuendelea, kwamba wote wa mifano ya leo

413
00:19:21,660 --> 00:19:25,225
ni kupatikana ndani ya
kozi ya tovuti.

414
00:19:25,225 --> 00:19:31,170
>> Na mimi nina kwenda mbele hapa na kubaini
up kitu tofauti kidogo.

415
00:19:31,170 --> 00:19:33,970
Hii moja hapa, ambayo
Mimi haja ya kujitolea.

416
00:19:33,970 --> 00:19:36,850
Ambao wangependa taa dawati leo?

417
00:19:36,850 --> 00:19:40,600
OK, vipi kuhusu mtu kidogo -
ni wewe juu ya mwisho?

418
00:19:40,600 --> 00:19:42,124
Kuja juu chini.

419
00:19:42,124 --> 00:19:47,230
Sasa, ungependa kushiriki, au
kusema tu kuanza na taa dawati?

420
00:19:47,230 --> 00:19:48,190
>> Vanessa: [inaudible].

421
00:19:48,190 --> 00:19:48,465
>> DAVID Malan: OK.

422
00:19:48,465 --> 00:19:49,610
Bora, nini wewe jina?

423
00:19:49,610 --> 00:19:49,990
Vanessa?

424
00:19:49,990 --> 00:19:50,570
Daudi.

425
00:19:50,570 --> 00:19:51,390
Nice kukutana na wewe.

426
00:19:51,390 --> 00:19:53,840
Hivyo kuja juu juu na Vanessa ya kwenda
kuchukua udhibiti wa yangu

427
00:19:53,840 --> 00:19:55,490
keyboard kwa muda tu.

428
00:19:55,490 --> 00:19:57,850
Na kile nimepata kufanyika hapa, tu kwa muda wa
ajili, nimekuwa kama barabara

429
00:19:57,850 --> 00:20:01,070
Wi-Fi ilikuwa kidogo polepole, Scratch,
programu ya mazingira ya kwamba sisi ni

430
00:20:01,070 --> 00:20:04,110
kutumia, pia inaweza kupakuliwa na
kukimbia kwenye kompyuta yako ya mtaa.

431
00:20:04,110 --> 00:20:06,360
Hivyo nini mimi mapema kabla ya hotuba, katika
kesi hiyo ikitokea, ni mimi kupakuliwa

432
00:20:06,360 --> 00:20:09,120
mafaili yote sisi ni juu ya kucheza na
ili waweze kukimbia zaidi kidogo

433
00:20:09,120 --> 00:20:10,840
haraka haki hapa kwenye laptop yangu.

434
00:20:10,840 --> 00:20:13,460
Hivyo ndiyo sababu sasa mimi nina kuona
Interface Mac-maalum.

435
00:20:13,460 --> 00:20:15,510
>> Hivyo nina kwenda mbele
na kufungua hii moja.

436
00:20:15,510 --> 00:20:18,400
Mimi nina kwenda mbele sasa na
full screen dirisha.

437
00:20:18,400 --> 00:20:21,740
Na kama utaona, tunaweza haraka sana,
kama mwanafunzi alifanya hii, moja ya

438
00:20:21,740 --> 00:20:26,360
watangulizi yako, nenda kutoka dunia hujambo
kwa mengi zaidi ya kulazimisha

439
00:20:26,360 --> 00:20:27,020
maombi.

440
00:20:27,020 --> 00:20:28,180
Hivyo hapa ni maelekezo.

441
00:20:28,180 --> 00:20:29,500
Oh, na tuna jambo moja nyingine.

442
00:20:29,500 --> 00:20:31,640
Nilidhani itakuwa fun, tangu,
kawaida, tutaweza kuwa na sinema

443
00:20:31,640 --> 00:20:32,440
kamera kwa njia hii.

444
00:20:32,440 --> 00:20:34,100
Mimi walidhani itakuwa furaha kama, Vanessa,
tunaweza kuona dunia

445
00:20:34,100 --> 00:20:35,120
kupitia macho yako.

446
00:20:35,120 --> 00:20:36,670
Hivyo hapa tuna baadhi ya kioo Google.

447
00:20:36,670 --> 00:20:39,290
>> [Walishangaa Gasps]

448
00:20:39,290 --> 00:20:41,610
>> DAVID Malan: Sisi tu kutoa
mbali dawati taa leo.

449
00:20:41,610 --> 00:20:43,530
>> [Kicheko]

450
00:20:43,530 --> 00:20:45,260
>> Hivyo basi mimi cue hii up.

451
00:20:45,260 --> 00:20:49,340
Haki ya wote, hivyo kugusa hii.

452
00:20:49,340 --> 00:20:51,910
OK, kioo, rekodi ya video.

453
00:20:51,910 --> 00:20:55,700

454
00:20:55,700 --> 00:20:56,950
Haki zote, Vanessa?

455
00:20:56,950 --> 00:21:00,940

456
00:21:00,940 --> 00:21:05,560
Sasa, kama kando kwamba amepewa kitu
kufanya na Scratch, kama ukiangalia

457
00:21:05,560 --> 00:21:08,540
kidogo juu na kwa haki, utaona
kioo halisi, na unapaswa

458
00:21:08,540 --> 00:21:09,650
kuona kidogo mstatili dirisha.

459
00:21:09,650 --> 00:21:11,500
Unapaswa kuona wanafunzi wenzangu wote wako
kuwa zingine sasa hivi?

460
00:21:11,500 --> 00:21:11,840
Ndiyo.

461
00:21:11,840 --> 00:21:12,340
>> Vanessa: Ndiyo.

462
00:21:12,340 --> 00:21:12,920
>> DAVID Malan: OK.

463
00:21:12,920 --> 00:21:15,170
Hivyo kwamba ni faini.

464
00:21:15,170 --> 00:21:16,660
Tutaweza kutolewa hii Footage baadaye.

465
00:21:16,660 --> 00:21:18,460
Kwa sasa, kugeuka mawazo yako
screen hapa.

466
00:21:18,460 --> 00:21:20,990
Na nini mtangulizi wako amefanya ni
kuweka baadhi ya maelekezo juu ya screen

467
00:21:20,990 --> 00:21:22,670
tu kwa kutumia mpango wa rangi.

468
00:21:22,670 --> 00:21:25,040
Hivyo wewe ni kwenda, katika wakati huu,
waandishi wa bar nafasi ya kuanza.

469
00:21:25,040 --> 00:21:27,790
Na kisha vipande puzzle baadhi ni kwenda
kuanza kusonga up screen.

470
00:21:27,790 --> 00:21:30,900
Na unataka hit funguo mshale, tu
kama katika DDR ya kweli, kwa mujibu

471
00:21:30,900 --> 00:21:32,740
na mambo wanaojitokeza
na wale mishale.

472
00:21:32,740 --> 00:21:33,020
>> Vanessa: OK.

473
00:21:33,020 --> 00:21:33,800
>> DAVID Malan: Ve kucheza hili kabla.

474
00:21:33,800 --> 00:21:34,140
>> Vanessa: Yeah.

475
00:21:34,140 --> 00:21:37,330
>> DAVID Malan: zote haki, Vanessa,
kwenda mbele na kuchukua ni mbali.

476
00:21:37,330 --> 00:22:53,082
>> [MUSIC - KAYNE WEST, "IMARA"]

477
00:22:53,082 --> 00:22:57,080
>> [Makofi]

478
00:22:57,080 --> 00:22:59,750
>> DAVID Malan: Hivyo hebu sasa
kuchukua hatua kutokana na hilo.

479
00:22:59,750 --> 00:23:01,230
Hivyo ni wazi, kwamba ni mchezo wa mwisho.

480
00:23:01,230 --> 00:23:02,880
mchezo wa mwisho ni si hodi dunia.

481
00:23:02,880 --> 00:23:05,520
Lakini wewe huna lazima kufanya
mambo ambayo ni hivyo maingiliano.

482
00:23:05,520 --> 00:23:06,810
Unaweza pia kufanya uhuishaji.

483
00:23:06,810 --> 00:23:10,790
Hivyo kwa mfano, mtu mwingine wa yako
waandamizi alifanya mpango huu hapa,

484
00:23:10,790 --> 00:23:14,100
ambayo inazungumzia hadithi zaidi ya
haina kutekelezwa mchezo.

485
00:23:14,100 --> 00:23:19,180
Hivyo basi mimi kwenda mbele na kufungua hapa
mpango huo katika orodha yetu chanzo

486
00:23:19,180 --> 00:23:20,300
kutoka leo.

487
00:23:20,300 --> 00:23:26,990
Wito huu mmoja, na hebu kuanza
na, hadithi kuki upendo.

488
00:23:26,990 --> 00:23:30,750
>> Na si kufanya hii pia kitaaluma, lakini,
kama wewe kuangalia hii moja, kufikiri kwa

489
00:23:30,750 --> 00:23:34,030
mwenyewe ambayo ya wale rahisi
programu dhana tumekuwa aliyesema

490
00:23:34,030 --> 00:23:34,630
kuhusu hivi sasa -

491
00:23:34,630 --> 00:23:39,250
vigezo, na tanzi, na masharti,
hakuwa mtangulizi wako pengine kutumia tu

492
00:23:39,250 --> 00:23:41,090
kutekeleza baadhi ya
visualizations.

493
00:23:41,090 --> 00:23:41,760
Unaweza kuona hapa.

494
00:23:41,760 --> 00:23:44,118
Hivyo mimi kukupa upendo kuki hadithi.

495
00:23:44,118 --> 00:24:06,030
>> [MUSIC - GREEN DAY, "HOLIDAY"]

496
00:24:06,030 --> 00:24:08,022
>> [Ajali]

497
00:24:08,022 --> 00:24:09,272
>> [MUSIC - turtles,
"HAPPY PAMOJA"]

498
00:24:09,272 --> 00:24:58,328

499
00:24:58,328 --> 00:25:00,560
>> DAVID Malan: zote haki, hivyo kuna,
tulikuwa na upendo kuki hadithi.

500
00:25:00,560 --> 00:25:01,360
Lakini hata huko -

501
00:25:01,360 --> 00:25:01,755
>> [Makofi]

502
00:25:01,755 --> 00:25:08,110
>> DAVID Malan: zote haki, hata huko,
kufikiri juu, kama wale mioyo akaenda kutoka

503
00:25:08,110 --> 00:25:10,410
chini hadi juu ya screen,
kulikuwa kweli kidogo ya

504
00:25:10,410 --> 00:25:11,440
randomness kinachoendelea.

505
00:25:11,440 --> 00:25:14,150
Na hakika, tutaweza kuona kwamba hata katika
rahisi ya mazingira, kama

506
00:25:14,150 --> 00:25:18,180
Mwanzo, kama katika C, unaweza kuzalisha
random idadi, au udanganyifu wa

507
00:25:18,180 --> 00:25:21,110
random idadi, hivyo kwamba mchezo ni
kidogo zaidi ya kuvutia zaidi ni nguvu

508
00:25:21,110 --> 00:25:23,390
kuwa kama alikuwa kabisa
ngumu coded kila kitu.

509
00:25:23,390 --> 00:25:26,360
>> Katika harakati kwamba unaweza kuona, kuna
kuna baadhi ya aina ya mwitikio.

510
00:25:26,360 --> 00:25:28,840
Haraka kama mtu gingerbread kugusa
mwanamke gingerbread, yeye

511
00:25:28,840 --> 00:25:30,000
inaonekana hoja zake.

512
00:25:30,000 --> 00:25:33,580
Na hivyo, kwa kweli, unaweza kutekeleza, katika
wengi programu lugha, dhana

513
00:25:33,580 --> 00:25:38,680
ya matukio, ambapo kama mkono mmoja kumgusa
upande mwingine, ambayo inaweza kusababisha baadhi ya

514
00:25:38,680 --> 00:25:41,270
wa chanzo code yako kwa
kweli nitafanya.

515
00:25:41,270 --> 00:25:43,740
Unaweza kusikiliza kwa vile
mambo kwenye screen.

516
00:25:43,740 --> 00:25:47,310
>> Basi hebu kuchukua ziara ya haraka, basi, ya
baadhi ya vitalu jengo tunaweza kutumia

517
00:25:47,310 --> 00:25:48,790
kufikia baadhi ya malengo hayo.

518
00:25:48,790 --> 00:25:51,630
Hivyo hapa ni nini tutaweza tangu sasa
kuwaita taarifa.

519
00:25:51,630 --> 00:25:55,030
Kauli hutokea kwa kuwa zambarau katika
Mwanzo, kitu kidogo kama hii,

520
00:25:55,030 --> 00:25:56,120
lakini hiyo ni holela.

521
00:25:56,120 --> 00:26:00,140
taarifa ni tu kipande puzzle au,
ujumla zaidi, mafundisho,

522
00:26:00,140 --> 00:26:03,370
anaelezea kompyuta kufanya
kitu, taarifa.

523
00:26:03,370 --> 00:26:04,680
>> Hivyo hapa ni sampuli rahisi.

524
00:26:04,680 --> 00:26:05,930
Kusema hello dunia.

525
00:26:05,930 --> 00:26:08,180
Mtu mwingine ili kuwa kusubiri moja ya pili.

526
00:26:08,180 --> 00:26:10,840
Hivyo hii kipande puzzle, ambayo ni mkono
katika Scratch, tutaweza basi yako

527
00:26:10,840 --> 00:26:13,050
wahusika pause kwa baadhi ya
idadi ya sekunde.

528
00:26:13,050 --> 00:26:15,330
Hii pia, ni taarifa yake.

529
00:26:15,330 --> 00:26:18,640
>> Hapa ijayo, tuna mwingine zaidi
kuvutia moja, kucheza meow sauti, na

530
00:26:18,640 --> 00:26:21,480
mshale kidogo ina maana kwamba katika Scratch,
hii ni kushuka chini menu.

531
00:26:21,480 --> 00:26:22,590
Hivyo unaweza kuagiza sauti.

532
00:26:22,590 --> 00:26:25,095
Unaweza kurekodi sauti na kufanya mengine
furaha mambo katika Scratch.

533
00:26:25,095 --> 00:26:28,450
Na kwamba, pia, ingawa, mwishoni
ya siku, ni taarifa yake.

534
00:26:28,450 --> 00:26:31,250
Lakini sasa hebu kuanzisha zaidi
kuvutia kipande, kwamba inajulikana kama

535
00:26:31,250 --> 00:26:32,630
Boolean kujieleza.

536
00:26:32,630 --> 00:26:35,180
Capital B, jina lake baada ya
wenzake aitwaye bool.

537
00:26:35,180 --> 00:26:39,500
>> Na kujieleza Boolean ni tu
puzzle kipande au, kwa ujumla zaidi,

538
00:26:39,500 --> 00:26:42,980
kipande cha habari ambacho ni
ama kweli au uongo -

539
00:26:42,980 --> 00:26:45,830
moja au sifuri, ndiyo au hapana.

540
00:26:45,830 --> 00:26:48,420
Hivyo ni moja tu ya wale
mbili kinyume.

541
00:26:48,420 --> 00:26:52,840
Hivyo moja vile Boolean kujieleza katika
ulimwengu wa Scratch inaonekana kama hii ya bluu

542
00:26:52,840 --> 00:26:53,560
puzzle kipande.

543
00:26:53,560 --> 00:26:56,735
Na ni kuuliza swali, panya
chini, na ambayo yanaweza ama kuwa, ya

544
00:26:56,735 --> 00:26:58,430
Bila shaka, kweli au uongo.

545
00:26:58,430 --> 00:27:01,710
Hivyo kwa kuwa na kipande puzzle katika Scratch,
vizuri, wewe utakuwa na uwezo wa kuchunguza kama

546
00:27:01,710 --> 00:27:05,490
puzzle kama panya, kwa kweli, kuwa
uliofanyika chini kwa mazungumzo ya binadamu

547
00:27:05,490 --> 00:27:06,550
na programu yako.

548
00:27:06,550 --> 00:27:08,860
>> Moja hii ni kidogo zaidi ya kufikirika,
lakini wale mbili nyeupe masanduku

549
00:27:08,860 --> 00:27:09,740
ni tu kwa ajili ya namba.

550
00:27:09,740 --> 00:27:12,950
Hivyo unaweza kufanya mambo kama hii ni
idadi ya chini ya wengine?

551
00:27:12,950 --> 00:27:16,180
Na kama hivyo, Scratch kuishi
njia moja au nyingine.

552
00:27:16,180 --> 00:27:17,505
Moja hii ni kidogo zaidi graphical.

553
00:27:17,505 --> 00:27:21,840
Ni kama Sprite, kama paka, kwa
mfano, ni kweli kugusa

554
00:27:21,840 --> 00:27:22,510
panya pointer.

555
00:27:22,510 --> 00:27:25,780
Hivyo kama kidogo mshale kichwa ukiwa unazunguka
zaidi ya paka, basi hii

556
00:27:25,780 --> 00:27:28,030
puzzle kipande itakuwa kutathmini kwa kweli.

557
00:27:28,030 --> 00:27:31,870
Itakuwa ni ya kweli, katika kesi ambayo, kama wewe
kutumia hii kujieleza Boolean, kama tutaweza

558
00:27:31,870 --> 00:27:36,340
kuona katika wakati huu, katika tawi, unaweza
ama kufanya hivyo, au unaweza kufanya hivyo,

559
00:27:36,340 --> 00:27:39,940
kiasi kama tulikuwa na hali ya kuwa
checked, kuna moja zaidi ya mwisho mtu

560
00:27:39,940 --> 00:27:40,460
katika chumba?

561
00:27:40,460 --> 00:27:42,070
Kama hivyo, kuongeza moja.

562
00:27:42,070 --> 00:27:44,430
Vinginevyo, msiwe na wasiwasi zaidi.

563
00:27:44,430 --> 00:27:48,650
>> Hivyo kujieleza Boolean inaweza pia kuwa
na-ed pamoja au au-ed pamoja.

564
00:27:48,650 --> 00:27:53,120
Hivyo unaweza kuchanganya maneno Boolean
na kusema hii na hii ni lazima kuwa kweli kwa

565
00:27:53,120 --> 00:27:54,710
jambo zima kuwa ni kweli.

566
00:27:54,710 --> 00:27:56,520
Na hapa ni zaidi ya ulimwengu wa kweli mfano.

567
00:27:56,520 --> 00:28:00,060
Ikiwa umetumia Kozi CS50 kufanya kozi
ununuzi, masanduku ya kuangalia hizi

568
00:28:00,060 --> 00:28:03,520
huko, ambapo kama wewe kuangalia kwamba sanduku ijayo
na kozi, ambayo kusema, ndiyo,

569
00:28:03,520 --> 00:28:07,860
tu kuonyesha yangu kwa kozi ambayo
Thamani Q ni 4.5 au zaidi.

570
00:28:07,860 --> 00:28:10,610
Kama wewe uncheck hayo, hakuna, hawana
wasiwasi kuhusu hilo.

571
00:28:10,610 --> 00:28:13,910
Au vile vile, juu ya haki, Je, si
Pamoja na migogoro Kozi mimi nina Kuchukua,

572
00:28:13,910 --> 00:28:15,650
hiyo ni ama kweli au uongo.

573
00:28:15,650 --> 00:28:16,715
Ni tu kujieleza Boolean.

574
00:28:16,715 --> 00:28:20,080
Hivyo wakati huu wote wakati umetumia
Nje na masanduku ya hundi, wewe tu

575
00:28:20,080 --> 00:28:23,570
toggling sawa ya Boolean
kujieleza na mbali.

576
00:28:23,570 --> 00:28:25,270
>> Hivyo katika kile fomu gani unatumia hizi?

577
00:28:25,270 --> 00:28:28,820
Naam, katika Scratch, tutaweza kuona katika wakati
kwamba kuna hali ya kuwa

578
00:28:28,820 --> 00:28:29,560
kuangalia kama hii.

579
00:28:29,560 --> 00:28:33,130
Na kwamba ni aina ya busara sana kwa sababu
kama katika pseudocode, sisi indented

580
00:28:33,130 --> 00:28:38,550
aina ya vipande puzzle U-umbo, maana
kwamba ndani ya kitu chochote cha U kwamba ni

581
00:28:38,550 --> 00:28:41,390
kwenda nitafanya, au la, kutegemea
juu ambapo ni.

582
00:28:41,390 --> 00:28:45,310
Hivyo kama Boolean kujieleza, basi
chochote ni ndani ya kupata kunyongwa.

583
00:28:45,310 --> 00:28:46,800
>> Wakati huo huo, kuna block ikiwa / kingine.

584
00:28:46,800 --> 00:28:50,320
Hivyo kama unataka tawi kwamba huenda hii
njia au kwamba, Scratch inatupa kwamba.

585
00:28:50,320 --> 00:28:54,500
Na kwa mantiki hii, sasa, hata kama kwamba
puzzle kipande ni wazi ndogo mno

586
00:28:54,500 --> 00:28:57,400
na kabari ya kitu kingine ndani yake,
puzzle mwanzo vipande, wao ni

587
00:28:57,400 --> 00:28:58,150
tu kwenda kukua.

588
00:28:58,150 --> 00:29:01,370
Wakati Drag na kuacha juu ya jambo fulani,
itakuwa tu kukua kwa kufaa chochote ni

589
00:29:01,370 --> 00:29:02,510
ni wewe ni kujaribu kufanya.

590
00:29:02,510 --> 00:29:07,230
>> Ili tuweze kuchukua mbili ya mambo haya na
kufanya njia tatu uma katika barabara ili

591
00:29:07,230 --> 00:29:11,300
kwamba aidha kufanya hivyo, au kwamba, au
jambo hili mengine tu kwa nesting yao

592
00:29:11,300 --> 00:29:12,070
katika njia hiyo.

593
00:29:12,070 --> 00:29:14,370
Bila shaka, kama wewe kufanya hivyo pia
mengi, ni kuanza kupata mbaya.

594
00:29:14,370 --> 00:29:17,660
Lakini katika hatua hiyo, wewe ni kweli
pengine si programu vizuri sana.

595
00:29:17,660 --> 00:29:20,490
Na hivyo kuwa itakuwa mara kwa mara
mandhari, pia kwamba ya mtindo.

596
00:29:20,490 --> 00:29:22,790
Tu jinsi vizuri kufanya kweli
kuunda kanuni yako?

597
00:29:22,790 --> 00:29:24,580
Au vile je kubuni kanuni yako?

598
00:29:24,580 --> 00:29:26,430
Lakini zaidi juu ya kwamba katika siku zijazo.

599
00:29:26,430 --> 00:29:27,470
>> Na sasa tuna mizunguko.

600
00:29:27,470 --> 00:29:30,310
Kuna nzuri milele kitanzi katika Scratch
ambayo ina maana halisi kwamba - kufanya

601
00:29:30,310 --> 00:29:32,710
chochote ni ndani ya hii tena,
na tena, na tena.

602
00:29:32,710 --> 00:29:35,880
Unaweza kuwa na thabiti zaidi na kusema,
kufanya jambo zifuatazo mara 10.

603
00:29:35,880 --> 00:29:37,620
Unaweza pia kutumia vigezo.

604
00:29:37,620 --> 00:29:40,260
Unaweza kuja na jina lolote kwa kuwa
kidogo kushuka chini na kusema, nipe

605
00:29:40,260 --> 00:29:43,190
variable kuitwa n na kuweka
ni sawa na thamani fulani.

606
00:29:43,190 --> 00:29:44,910
Na kisha unaweza kuwa na kazi.

607
00:29:44,910 --> 00:29:46,850
Lakini zaidi juu ya wale walio katika muda tu.

608
00:29:46,850 --> 00:29:49,140
>> Hebu kwenda nyuma yangu
Scratch interface.

609
00:29:49,140 --> 00:29:50,970
Na napenda kwenda mbele wakati huu.

610
00:29:50,970 --> 00:29:56,660
Na twende mbele na kufungua,
hebu sema, mfano kutoka -

611
00:29:56,660 --> 00:29:58,740
kwamba ni kidogo zaidi ya kuvutia.

612
00:29:58,740 --> 00:30:00,750
Hebu kwenda mbele, na, kwa kweli,
napenda tu kufanya hivyo mwenyewe.

613
00:30:00,750 --> 00:30:01,960
Sina haja ya kufungua hii moja.

614
00:30:01,960 --> 00:30:03,390
Hebu kwenda na Picha, Mpya.

615
00:30:03,390 --> 00:30:04,740
Mimi nina kwenda kwa Matukio.

616
00:30:04,740 --> 00:30:08,460
Mimi nina kwenda kwa bendera wakati kijani
clicked, na mimi nina kwenda kwa Sound.

617
00:30:08,460 --> 00:30:11,590
Na mimi naenda kwa Drag na kuacha hii
puzzle kipande, kucheza sauti meow.

618
00:30:11,590 --> 00:30:12,580
Ni latches pamoja.

619
00:30:12,580 --> 00:30:14,327
Na sasa, kama mimi bonyeza bendera ya kijani -

620
00:30:14,327 --> 00:30:16,260
>> [Meow SAUTI]

621
00:30:16,260 --> 00:30:17,500
>> DAVID Malan: adorable.

622
00:30:17,500 --> 00:30:21,560
OK, hivyo sasa hebu kufanya kitu kidogo
mantiki zaidi tu kuonyesha kwamba

623
00:30:21,560 --> 00:30:22,760
tunaweza, kwa sasa.

624
00:30:22,760 --> 00:30:25,550
Mimi nina kwenda unlatch
hii kutoka guy kwamba.

625
00:30:25,550 --> 00:30:27,000
Mimi naenda kwenda Udhibiti.

626
00:30:27,000 --> 00:30:28,770
Na mimi naenda kwa kunyakua hali hiyo.

627
00:30:28,770 --> 00:30:30,600
Hivyo kama kitu basi.

628
00:30:30,600 --> 00:30:32,020
Hivyo kwamba ni jinsi gani inaonekana huko.

629
00:30:32,020 --> 00:30:33,890
Hivyo nahitaji kujieleza Boolean.

630
00:30:33,890 --> 00:30:38,130
Na napenda kwenda mbele na kusema,
niende Operators.

631
00:30:38,130 --> 00:30:40,270
Mimi nina kwenda kufanya kitu kidogo
mathy, tu kwa mateke.

632
00:30:40,270 --> 00:30:43,600
Mimi nina kwenda katika hapa na kusema, kama
kitu ni chini ya kitu kingine,

633
00:30:43,600 --> 00:30:45,030
kwenda mbele na kufanya kitu.

634
00:30:45,030 --> 00:30:46,890
Hivyo sasa, unajua nini, kuzuia random.

635
00:30:46,890 --> 00:30:51,620
Hivyo taarifa jinsi, kama mimi hover juu ya hii
kitu hapa, kwamba snap huko.

636
00:30:51,620 --> 00:30:54,090
>> Basi sasa, angalia, mimi nina kuanza kufanya
kitu tayari zaidi kifikra

637
00:30:54,090 --> 00:30:54,650
kuvutia.

638
00:30:54,650 --> 00:30:59,720
Kama idadi random kati ya 1 na
10 ni chini ya, hebu sema sita.

639
00:30:59,720 --> 00:31:03,670
Kama mimi kuchagua sita, kwamba kimsingi
maana yake, kufanya yafuatayo na 50%

640
00:31:03,670 --> 00:31:03,980
uwezekano.

641
00:31:03,980 --> 00:31:05,460
Ni kama flipping sarafu.

642
00:31:05,460 --> 00:31:07,330
Sasa, siwezi kufanya kitu kwa masharti.

643
00:31:07,330 --> 00:31:10,800
Na kwamba kitu nitakacho
kufanya ni kucheza sauti.

644
00:31:10,800 --> 00:31:14,280
Hivyo sasa, wakati mimi bonyeza screen
bendera, ni kama msukosuko sarafu.

645
00:31:14,280 --> 00:31:14,610
>> [Meow SAUTI]

646
00:31:14,610 --> 00:31:17,160
>> DAVID Malan: Ilikuwa vichwa
au whatnot huko.

647
00:31:17,160 --> 00:31:17,920
Hebu kufanya hivyo tena.

648
00:31:17,920 --> 00:31:18,860
>> [Meow SAUTI]

649
00:31:18,860 --> 00:31:19,790
>> DAVID Malan: Wakuu tena.

650
00:31:19,790 --> 00:31:20,280
>> [Meow SAUTI]

651
00:31:20,280 --> 00:31:21,500
>> DAVID Malan: Wakuu tena.

652
00:31:21,500 --> 00:31:22,631
Phew, OK.

653
00:31:22,631 --> 00:31:24,720
Mikia kwamba wakati.

654
00:31:24,720 --> 00:31:29,545
Hivyo 50% ya muda, kama sisi hii
kubwa kwa muda mrefu, sisi kupata Meows 50%

655
00:31:29,545 --> 00:31:32,180
na 50% silences.

656
00:31:32,180 --> 00:31:34,850
Hivyo kuna, tu ujenzi wa msingi
kuzuia kwamba lets sisi kufanya hivyo.

657
00:31:34,850 --> 00:31:37,710
Lakini hii ni aina ya tedious kwamba nina
kuweka kubonyeza kwamba kifungo.

658
00:31:37,710 --> 00:31:39,810
Basi hebu Drag tu na kutupa
wale wote mbali.

659
00:31:39,810 --> 00:31:42,270
Kama wewe kuvutana wao katikati,
wao itabidi tu kufuta wenyewe.

660
00:31:42,270 --> 00:31:43,760
>> Uniruhusu niende kudhibiti.

661
00:31:43,760 --> 00:31:46,060
Hebu kwenda kwa milele.

662
00:31:46,060 --> 00:31:49,952
Na wakati huu, mimi nina kwenda kufanya
kitu minorly annoying.

663
00:31:49,952 --> 00:31:51,560
>> [Kicheko]

664
00:31:51,560 --> 00:31:53,370
>> DAVID Malan: Na napenda kwenda
mbele na kufanya kudhibiti.

665
00:31:53,370 --> 00:31:57,260
Kusubiri moja ya pili, ili tu
siyo pia wavu.

666
00:31:57,260 --> 00:31:59,870
>> [Meow SAUTI]

667
00:31:59,870 --> 00:32:00,970
>> DAVID Malan: Hiyo si asili.

668
00:32:00,970 --> 00:32:01,861
OK.

669
00:32:01,861 --> 00:32:04,510
>> [Meow SAUTI]

670
00:32:04,510 --> 00:32:06,406
>> DAVID Malan: Na ilani ya nini, nice
kuhusu Scratch, kwa wale ambao

671
00:32:06,406 --> 00:32:09,210
kuwa kabla Programing uzoefu, wewe
hawana haja ya kuanza na kuacha.

672
00:32:09,210 --> 00:32:10,060
Huna haja ya kukusanya.

673
00:32:10,060 --> 00:32:13,210
Wewe tu mabadiliko hayo, na mpango
mapenzi kukabiliana dynamically.

674
00:32:13,210 --> 00:32:14,620
Hivyo hii ni kupata
kidogo ya kuvutia.

675
00:32:14,620 --> 00:32:16,930
Lakini hebu kuchukua ni hatua moja zaidi.

676
00:32:16,930 --> 00:32:19,760
Hebu kwenda mbele na kupata
kuondoa wa mpango huo.

677
00:32:19,760 --> 00:32:23,300
>> [Meow SAUTI]

678
00:32:23,300 --> 00:32:25,520
>> DAVID Malan: Hiyo ni nini tutaweza
kuwaita mdudu katika Scratch.

679
00:32:25,520 --> 00:32:26,770
Anapaswa kuendelea kufanya kwamba sauti.

680
00:32:26,770 --> 00:32:28,340
Hivyo sisi tutaweza kumwambia kuacha.

681
00:32:28,340 --> 00:32:30,435
Haki wote, hivyo sasa nina
kwenda katika -

682
00:32:30,435 --> 00:32:32,180
Mimi itabidi basi MIT kujua.

683
00:32:32,180 --> 00:32:35,160
Tutaweza kwenda juu hapa milele.

684
00:32:35,160 --> 00:32:37,240
Na sasa, nataka kufanya kitu
tena na tena.

685
00:32:37,240 --> 00:32:38,760
Mimi nina kwenda katika Udhibiti.

686
00:32:38,760 --> 00:32:41,570
>> Na hebu angalia, mimi nina kwenda Drag
kama yangu hali ya huko.

687
00:32:41,570 --> 00:32:42,850
Hivyo sasa taarifa mantiki.

688
00:32:42,850 --> 00:32:46,430
Wakati bendera ya kijani ni clicked, kufanya
kitu milele, lakini tu kufanya hivyo

689
00:32:46,430 --> 00:32:48,890
kitu kama hii Jambo jingine ni kweli.

690
00:32:48,890 --> 00:32:51,480
Mimi nina kwenda kwa, hebu
kusema, kuhisi.

691
00:32:51,480 --> 00:32:54,430
Na mimi nina kwenda mbele na kuchagua
kugusa na kushuka huko.

692
00:32:54,430 --> 00:32:55,930
Hiyo ni kujieleza Boolean.

693
00:32:55,930 --> 00:32:57,740
>> Na sasa, taarifa, katika tone hii
down menu, kuna

694
00:32:57,740 --> 00:32:59,050
baadhi ya maadili predefined.

695
00:32:59,050 --> 00:33:00,910
Hivyo naweza kusema, ni wewe kugusa
makali ya screen?

696
00:33:00,910 --> 00:33:03,900
Au wewe ni kugusa mouse pointer,
mshale juu ya screen?

697
00:33:03,900 --> 00:33:04,620
Hivyo nina kwenda kufanya hivyo.

698
00:33:04,620 --> 00:33:08,770
Na kama ni hivyo, basi mimi nina kwenda
mbele na kucheza meow sauti.

699
00:33:08,770 --> 00:33:11,250
Hivyo sasa mimi aina ya kuwa
mwanzo wa mchezo -

700
00:33:11,250 --> 00:33:13,110
mchezo adorable.

701
00:33:13,110 --> 00:33:14,060
>> [Meow SAUTI]

702
00:33:14,060 --> 00:33:17,250
>> DAVID Malan: OK, adorable,
Buggy mchezo.

703
00:33:17,250 --> 00:33:20,770
Hebu kusubiri, hebu sema,
moja ya pili huko.

704
00:33:20,770 --> 00:33:24,910
Sasa kucheza tena, kwa kubonyeza
bendera ya kijani.

705
00:33:24,910 --> 00:33:27,860
>> [Meow SAUTI]

706
00:33:27,860 --> 00:33:30,460
>> DAVID Malan: Basi sasa ni
kama kufuga paka.

707
00:33:30,460 --> 00:33:31,850
>> [Meow SAUTI]

708
00:33:31,850 --> 00:33:34,460
>> DAVID Malan: zote haki, sasa hii
moja sikuweza kufanya mapema.

709
00:33:34,460 --> 00:33:39,250
Kuchelewa sana, anapata aina ya
rahisi kufanya mambo ya kijinga.

710
00:33:39,250 --> 00:33:40,240
Hivyo basi mimi kwenda katika hapa.

711
00:33:40,240 --> 00:33:43,720
Hebu kusema, kwamba alikuwa Pet Cat.

712
00:33:43,720 --> 00:33:46,600
Hebu sasa kufungua Je, si Pet Cat.

713
00:33:46,600 --> 00:33:48,330
Sasa, kama sisi kucheza hii moja,
unaweza nadhani, kama wewe ni

714
00:33:48,330 --> 00:33:49,650
kuangalia screen -

715
00:33:49,650 --> 00:33:51,090
>> [Meow SAUTI]

716
00:33:51,090 --> 00:33:52,170
>> DAVID Malan: Sasa, kama mimi pet paka

717
00:33:52,170 --> 00:33:55,420
>> [Kishindo Simba'S]

718
00:33:55,420 --> 00:33:57,260
>> DAVID Malan: Hivyo si kweli
pet paka katika kesi hiyo.

719
00:33:57,260 --> 00:34:01,350
Hivyo sasa sisi tu mfano wa
tawi kwamba kinaendelea katika pande mbili.

720
00:34:01,350 --> 00:34:03,130
Sasa napenda kwenda mbele na
kufungua mwingine moja hapa.

721
00:34:03,130 --> 00:34:07,120
Hii moja, pia, miongoni mwa chanzo chetu
kanuni files kwa siku.

722
00:34:07,120 --> 00:34:13,199
Hivyo basi mimi kwenda nyuma katika Chanzo yangu
directory na kwenda katika, hebu kuchagua

723
00:34:13,199 --> 00:34:15,610
hii guy hapa na kuona
nini tofauti.

724
00:34:15,610 --> 00:34:17,449
>> Wow, haki ya wote, hivyo kwa sasa ni kupata
kidogo ngumu zaidi.

725
00:34:17,449 --> 00:34:21,300
Na kabla ya sisi kuona nini guy hii haina,
hebu jaribu infer, kutoka mpango

726
00:34:21,300 --> 00:34:22,219
katika upande wa kulia.

727
00:34:22,219 --> 00:34:25,590
Na sasa mwanzo wazi inaruhusu sisi
na maandiko mbalimbali, nyingi

728
00:34:25,590 --> 00:34:29,730
mipango ya kuhusishwa na sprite moja,
na tabia moja, na, inaonekana,

729
00:34:29,730 --> 00:34:31,760
wao ni wawili kwenda kukimbia katika lockstep.

730
00:34:31,760 --> 00:34:35,570
Kwa sababu wote wawili wa programu hizi kuanza
na Clicks wakati kijani bendera, hii ni

731
00:34:35,570 --> 00:34:38,650
hinting katika mada ya juu zaidi, na
ambayo baadhi yenu wanaweza kuwa na utambuzi,

732
00:34:38,650 --> 00:34:40,580
inayojulikana kama threading, au
mbalimbali threading.

733
00:34:40,580 --> 00:34:44,400
>> Zinageuka, mrefu hadithi fupi, kompyuta
leo unaweza kimsingi kufanya nyingi

734
00:34:44,400 --> 00:34:45,270
mambo kwa mara moja.

735
00:34:45,270 --> 00:34:48,659
Au wanaweza kufanya jambo moja kwa wakati ili
haraka kwamba huna hata taarifa kwamba

736
00:34:48,659 --> 00:34:50,150
ni kweli kufanya moja
jambo kwa wakati.

737
00:34:50,150 --> 00:34:53,320
Lakini kwa sasa, hebu kudhani kwamba wote
programu hizi ni kwenda kutekeleza katika

738
00:34:53,320 --> 00:34:54,310
wakati mmoja.

739
00:34:54,310 --> 00:34:57,350
Na notisi, wote wawili wana
milele Puzzle vipande vipande.

740
00:34:57,350 --> 00:35:01,270
Hivyo wao ni wawili kwenda kuweka mbio
mpaka mimi hit nyekundu kuacha ishara.

741
00:35:01,270 --> 00:35:02,100
>> Basi ni nini wao kwenda kufanya?

742
00:35:02,100 --> 00:35:06,030
Upande wa kushoto, mimi nina inaonekana
kutangaza variable kuitwa kimya.

743
00:35:06,030 --> 00:35:09,030
Hivyo sikuweza kuiita kitu kama
boring kama tabia mimi kuitwa ni kimya hii

744
00:35:09,030 --> 00:35:10,240
muda wa kuwasilisha maana.

745
00:35:10,240 --> 00:35:11,780
Mimi kuweka sawa na sifuri.

746
00:35:11,780 --> 00:35:16,200
Hebu fikiria ya kwamba kama uongo, au
hebu fikiria ya kwamba kama uongo.

747
00:35:16,200 --> 00:35:17,490
>> Sasa, milele kufanya yafuatayo.

748
00:35:17,490 --> 00:35:23,280
Kama nafasi bar keyboard ni taabu,
basi kama kimya ni sawa na sifuri,

749
00:35:23,280 --> 00:35:25,930
basi mabadiliko kimya kwa moja sawa.

750
00:35:25,930 --> 00:35:27,580
Mwingine, kuweka kimya na sifuri.

751
00:35:27,580 --> 00:35:30,530
Hivyo kifikra, hata ingawa hiyo ni nzima
rundo la vipande puzzle kwamba

752
00:35:30,530 --> 00:35:33,160
kusema tu, wakati mimi hit bar Space,
nifanye nini ili kutofautiana

753
00:35:33,160 --> 00:35:34,750
kuitwa kimya?

754
00:35:34,750 --> 00:35:37,170
Mabadiliko hayo kutoka moja hadi sifuri,
au sifuri kwa moja.

755
00:35:37,170 --> 00:35:37,840
Hayo ni yote.

756
00:35:37,840 --> 00:35:40,740
Hivyo ni kama kugeuka swichi ya taa
juu au mbali na kukumbuka, na

757
00:35:40,740 --> 00:35:42,330
kutofautiana, kwamba nimepata amefanya hivyo.

758
00:35:42,330 --> 00:35:45,990
>> Wakati huo huo, upande wa kulia, katika
layman suala, ni nini madhumuni ya

759
00:35:45,990 --> 00:35:47,547
script juu ya haki?

760
00:35:47,547 --> 00:35:48,860
>> MWANAFUNZI: Ili kucheza simba bahari sauti.

761
00:35:48,860 --> 00:35:52,500
>> DAVID Malan: Ili kucheza Bahari ya Simba ya sauti,
kama yeye si kimya, na

762
00:35:52,500 --> 00:35:53,480
asili ya variable kwamba.

763
00:35:53,480 --> 00:35:57,360
Hivyo sisi ni kushirikiana hali, hivyo kusema,
kubadilishana habari hela hizi mbili

764
00:35:57,360 --> 00:36:00,540
maandiko kwa sababu, taarifa hapa, sisi ni
milele kufanya yafuatayo.

765
00:36:00,540 --> 00:36:04,620
Kama kimya ni sifuri, hivyo kama si umebakia kimya -
ikiwa kimya ni uongo, kisha kucheza

766
00:36:04,620 --> 00:36:05,980
hii Simba Bahari ya sauti.

767
00:36:05,980 --> 00:36:09,930
Na kufikiria mwenyewe, hi, hi, hi, kwa
sekunde mbili, ngoja kidogo, na kisha

768
00:36:09,930 --> 00:36:11,140
kuangalia tena.

769
00:36:11,140 --> 00:36:15,150
Hivyo kama sisi kwenda sasa zaidi ya hapa kwa upande wa kushoto,
na ambapo guy hii ni, na kumtwanga

770
00:36:15,150 --> 00:36:16,662
kijani bendera,

771
00:36:16,662 --> 00:36:30,260
>> [SEA Simba SAUTI]

772
00:36:30,260 --> 00:36:31,910
>> DAVID Malan: Ni wakati gani
hii kupata kweli annoying?

773
00:36:31,910 --> 00:36:33,440
Kwa sababu hii tu kwenda juu milele.

774
00:36:33,440 --> 00:36:36,490
Hivyo wakati mwingine, usio tanzi,
hivyo kusema, ni makusudi.

775
00:36:36,490 --> 00:36:41,140
Lakini katika kesi hii, haraka kama mimi
hit bar nafasi, yeye ataacha.

776
00:36:41,140 --> 00:36:42,800
Sasa mpango huo si kuacha.

777
00:36:42,800 --> 00:36:44,760
Ni bado mbio katika mizunguko hizo.

778
00:36:44,760 --> 00:36:46,540
Lakini kama mimi kupata nafasi bar tena -

779
00:36:46,540 --> 00:36:47,851
>> [SEA Simba SAUTI]

780
00:36:47,851 --> 00:36:49,650
>> DAVID Malan: Yeye anaenda kuchukua
up ambapo yeye kushoto mbali.

781
00:36:49,650 --> 00:36:53,240
Hivyo kuna njia moja kwa sisi kufanya
kitu tena na tena lakini, kwamba

782
00:36:53,240 --> 00:36:54,920
wakati, tu kwa masharti.

783
00:36:54,920 --> 00:36:58,940
Naam, wakati tuko katika hii mshipa wa kufanya
mambo tena na tena, basi mimi

784
00:36:58,940 --> 00:37:01,370
kwenda katika mfano mwingine vile hapa.

785
00:37:01,370 --> 00:37:04,370
Hii moja Tutamwita kuhesabu kondoo.

786
00:37:04,370 --> 00:37:05,710
>> Na taarifa ya nini guy hii gani.

787
00:37:05,710 --> 00:37:08,540
Ni kweli kidogo zaidi kama
pseudocode sisi alicheza na juu ya

788
00:37:08,540 --> 00:37:12,230
Jumatano, ambapo yeye anaweka baadhi ya kukabiliana,
kufikiria ni kama N tena, kwa

789
00:37:12,230 --> 00:37:14,030
sifuri, yeye hana milele zifuatazo.

790
00:37:14,030 --> 00:37:17,960
Anasema thamani ya kukabiliana kwa moja
pili, tusubiri pili, na kisha

791
00:37:17,960 --> 00:37:19,430
mabadiliko ya kukabiliana kwa moja.

792
00:37:19,430 --> 00:37:21,570
Na katika mazingira haya, kwamba tu
ina maana ya nyongeza yake.

793
00:37:21,570 --> 00:37:23,250
Hivyo anaongeza moja kwa hilo.

794
00:37:23,250 --> 00:37:25,830
Hivyo hii ni halisi -

795
00:37:25,830 --> 00:37:27,890
siyo kabisa nini tunafikiri
kama ya kuhesabu kondoo.

796
00:37:27,890 --> 00:37:33,120
Ni kondoo kufanya kuhesabu,
milele, kutoka sifuri.

797
00:37:33,120 --> 00:37:35,560
>> Hivyo tunaweza kufanya mambo sawa
huko, kifikra.

798
00:37:35,560 --> 00:37:37,750
Lakini sasa hebu kujaribu kusafisha
baadhi ya mambo haya juu.

799
00:37:37,750 --> 00:37:43,440
Hebu kwenda mbele sasa katika rahisi
mfano ambapo paka wetu ni kwenda tu

800
00:37:43,440 --> 00:37:44,750
kuanza kukohoa.

801
00:37:44,750 --> 00:37:48,830
Haki ya wote, hivyo hapa tuna kikohozi 0 -

802
00:37:48,830 --> 00:37:50,685
kompyuta wanasayansi kuanza
kuhesabu kutoka 0.

803
00:37:50,685 --> 00:37:53,480
Hivyo paka hii ni kwenda tu
kukohoa kwa mara tatu.

804
00:37:53,480 --> 00:37:54,890
Na hapa ni jinsi mimi kutekelezwa kwamba.

805
00:37:54,890 --> 00:38:00,130
Wakati bendera ya kijani ni clicked, kikohozi,
kusubiri, kikohozi, kusubiri, kikohozi, kusubiri.

806
00:38:00,130 --> 00:38:02,470
Na mimi hii tu na akawatoa
na kuacha vipande puzzle.

807
00:38:02,470 --> 00:38:04,740
Au kama kuanza Tinker na Scratch,
utaona unaweza kweli

808
00:38:04,740 --> 00:38:08,620
duplicate vipande hivyo kwamba unaweza kufanya
mambo haraka zaidi bila akawatoa

809
00:38:08,620 --> 00:38:10,310
na kuacha ad nauseum.

810
00:38:10,310 --> 00:38:12,680
>> Lakini sisi siyo kwenye njia bora hapa.

811
00:38:12,680 --> 00:38:15,210
Sababu ni jinsi gani mimi kufanya naye
kikohozi mara ya nne?

812
00:38:15,210 --> 00:38:16,790
Naam, mimi naweza aina ya kwenda chini hapa.

813
00:38:16,790 --> 00:38:19,420
Mimi naweza duplicate na kisha
kuweka hii katika huko.

814
00:38:19,420 --> 00:38:21,740
Jinsi gani mimi kufanya naye kikohozi mara ya tano?

815
00:38:21,740 --> 00:38:23,230
Naam, nakala na kuweka tena.

816
00:38:23,230 --> 00:38:24,210
Au buruta kushuka tena.

817
00:38:24,210 --> 00:38:26,920
Na haraka sana, mpango huu kuanza
kupata kweli, kweli kutokuwa na maana,

818
00:38:26,920 --> 00:38:28,880
kweli kwa muda mrefu, lakini kwa kweli uninteresting.

819
00:38:28,880 --> 00:38:30,120
Lakini kuna njia ya kusafisha hii up.

820
00:38:30,120 --> 00:38:33,680
Nini njia dhahiri
safi hii juu?

821
00:38:33,680 --> 00:38:36,280
>> OK, hivyo tunaweza kweli kweli kwenda
nje na, wakati hit nafasi

822
00:38:36,280 --> 00:38:37,070
bar, kuwa naye kikohozi.

823
00:38:37,070 --> 00:38:40,150
Lakini kama mimi tu wanataka kufanya kitu
repetitively, kukumbuka kwamba hatuwezi kuwa na

824
00:38:40,150 --> 00:38:41,310
kudhibiti baadhi anajenga.

825
00:38:41,310 --> 00:38:43,800
Hebu hoja hii nje ya
njia, kwenda chini ya Udhibiti.

826
00:38:43,800 --> 00:38:47,340
Napenda tu kufanya kurudia,
kusema, mara tatu.

827
00:38:47,340 --> 00:38:49,410
Na sasa napenda kuiba baadhi ya
ya vipande puzzle haya.

828
00:38:49,410 --> 00:38:50,980
Hebu snap hii hapa.

829
00:38:50,980 --> 00:38:52,400
Hebu kutupa hizi mbali kabisa.

830
00:38:52,400 --> 00:38:55,400
>> Na sasa, nina bora
iliyoundwa mpango.

831
00:38:55,400 --> 00:38:55,920
Kwa nini?

832
00:38:55,920 --> 00:39:00,540
Kama nataka kubadili idadi ya mara
mafua paka hii, wote mimi na

833
00:39:00,540 --> 00:39:05,640
je ni mabadiliko ya moja kutofautiana, au moja ya thamani,
badala ya kutoka watatu, wanne, au

834
00:39:05,640 --> 00:39:06,700
mitano, au sita.

835
00:39:06,700 --> 00:39:09,060
Au ningeweza kufanya jambo kwa masharti,
hata, na nafasi

836
00:39:09,060 --> 00:39:10,320
bar kama mimi alitaka.

837
00:39:10,320 --> 00:39:11,780
>> Hivyo hii ni kanuni ya jumla.

838
00:39:11,780 --> 00:39:14,950
Mara baada ya kuanza kuiga na pasting kificho,
kama ni katika Scratch, au katika

839
00:39:14,950 --> 00:39:18,340
C, wewe ni kufanya kitu
vibaya, uwezekano mkubwa.

840
00:39:18,340 --> 00:39:21,950
Au angalau, mara moja umefanya ilizidi baadhi
kuridhisha idadi ya nakala na

841
00:39:21,950 --> 00:39:24,610
pastes, wewe pengine
kufanya kitu kibaya.

842
00:39:24,610 --> 00:39:26,740
>> Lakini unajua nini?

843
00:39:26,740 --> 00:39:27,590
Mimi si kweli kama hii.

844
00:39:27,590 --> 00:39:28,980
Hii si kubuni safi.

845
00:39:28,980 --> 00:39:32,860
Napenda kulikuwa na kipande puzzle kuitwa
kikohozi kwa sababu basi napenda

846
00:39:32,860 --> 00:39:36,100
kuwa na kutekeleza hii mwenyewe,
kikale njia, na

847
00:39:36,100 --> 00:39:38,220
Baada ya kusema, na kusubiri -

848
00:39:38,220 --> 00:39:40,320
nini kama walikuwa tu
puzzle kikohozi kipande.

849
00:39:40,320 --> 00:39:41,330
>> Naam, mimi kweli anaweza kufanya hivyo.

850
00:39:41,330 --> 00:39:45,010
Hebu kwenda chini ya vitalu zaidi, bonyeza
Kufanya Block, na sasa mimi kupata hii

851
00:39:45,010 --> 00:39:45,610
dirisha hapa.

852
00:39:45,610 --> 00:39:47,540
Mimi naenda kuwaita hii ya kikohozi kitu.

853
00:39:47,540 --> 00:39:49,400
Mimi nina kwenda mbele na bonyeza OK.

854
00:39:49,400 --> 00:39:53,150
Na sasa taarifa, mimi kupata kuanzia mpya
kipande hiyo ikiwa juu.

855
00:39:53,150 --> 00:39:56,590
Na nini mimi kwenda kufanya na hii, mimi nina
kwenda tu kuiba vitalu haya.

856
00:39:56,590 --> 00:39:57,800
Mimi nina kwenda kuziweka hapa.

857
00:39:57,800 --> 00:40:00,490
>> Na sasa, na vipande tatu hizi, nimekuwa
kutekelezwa nini mimi kwenda kuwaita

858
00:40:00,490 --> 00:40:03,530
kazi, au utaratibu, au baadhi ya
unaweza kujua kuwa kama njia.

859
00:40:03,530 --> 00:40:05,050
Kidogo tofauti kati ya maneno.

860
00:40:05,050 --> 00:40:06,950
Lakini kwa sasa, hebu tu
piga kazi huu.

861
00:40:06,950 --> 00:40:08,750
Hii ni mpya puzzle kipande.

862
00:40:08,750 --> 00:40:11,000
Sasa ni kutekelezwa kama hii.

863
00:40:11,000 --> 00:40:15,170
>> Lakini taarifa kwamba Scratch ametupa
kimwili uwakilishi wa kwamba wote

864
00:40:15,170 --> 00:40:16,570
kuzuia zaidi ya hapa.

865
00:40:16,570 --> 00:40:21,930
Hivyo sasa, naweza tu Drag hii zaidi ya hapa,
kusema, kurudia mara tatu, na

866
00:40:21,930 --> 00:40:26,420
nini kinaendelea kutokea sasa, wakati mimi kucheza
script hii, ni moja tu ya mpango

867
00:40:26,420 --> 00:40:27,500
ni mbio kwa wakati.

868
00:40:27,500 --> 00:40:29,880
Kuna mmoja tu wakati
kijani bendera clicked.

869
00:40:29,880 --> 00:40:34,010
Lakini kwamba kuzuia zambarau kuitwa kikohozi ni
ufanisi kuwaambia Scratch, kila

870
00:40:34,010 --> 00:40:38,160
wakati unaweza kuona kwamba kipande puzzle, kwa kweli
kutekeleza hatua hizi kwamba mimi

871
00:40:38,160 --> 00:40:40,420
kutokea kwa kutekeleza manually.

872
00:40:40,420 --> 00:40:41,410
>> Hivyo kwamba ni aina ya nadhifu.

873
00:40:41,410 --> 00:40:44,650
Lakini sasa, tuseme kwamba niliamua, sijui
nataka hii paka tu kikohozi.

874
00:40:44,650 --> 00:40:46,660
Mimi nataka yake ya kuwa na uwezo
kuchafya pia.

875
00:40:46,660 --> 00:40:48,905
Naam, ni jinsi gani sisi kwenda juu
kutekeleza kuchafya?

876
00:40:48,905 --> 00:40:51,310
Vizuri mimi naweza pretty much
kufanya kitu kimoja.

877
00:40:51,310 --> 00:40:52,690
Mimi naweza kufanya mwingine block.

878
00:40:52,690 --> 00:40:55,940
Mimi naweza kuita hii kuchafya, bonyeza OK.

879
00:40:55,940 --> 00:40:59,250
>> Basi, zaidi ya hapa ningeweza kweli
kuwa, napenda kurudia hii -

880
00:40:59,250 --> 00:41:02,850
na kuna ambapo unapaswa kujisikia kama
wewe ni pengine si kufanya kitu katika

881
00:41:02,850 --> 00:41:03,780
njia bora.

882
00:41:03,780 --> 00:41:06,670
Mimi naweza kusema kitu kama,
achoo, kwa ajili ya pili moja.

883
00:41:06,670 --> 00:41:07,440
Kusubiri moja ya pili.

884
00:41:07,440 --> 00:41:08,715
Sasa nina kuzuia mpya iitwayo kuchafya.

885
00:41:08,715 --> 00:41:10,210
Na hakika, huko ni.

886
00:41:10,210 --> 00:41:14,010
>> Lakini hii pia, wanatakiwa kuanza kujisikia -
labda si wiki ya kwanza ya darasa, lakini

887
00:41:14,010 --> 00:41:15,730
na ya pili - tu
redundant kidogo.

888
00:41:15,730 --> 00:41:17,800
Wazi, kuna baadhi ya redundancy hapa.

889
00:41:17,800 --> 00:41:22,090
Hivyo basi mimi kupendekeza, badala yake, kwamba sisi
kuboresha tafsiri hii kama ifuatavyo.

890
00:41:22,090 --> 00:41:24,820
>> Hebu kwenda hadi faili menu yangu.

891
00:41:24,820 --> 00:41:26,090
Mimi si kwenda kuokoa toleo hili.

892
00:41:26,090 --> 00:41:29,080
Mimi nina kwenda katika moja ya
files yangu premade hapa.

893
00:41:29,080 --> 00:41:31,190
Na mimi nina kwenda mbele
na kufungua kikohozi 2.

894
00:41:31,190 --> 00:41:32,220
Whoops kwamba alikuwa kikohozi 2.

895
00:41:32,220 --> 00:41:36,900
Hebu kwenda mbele na kufungua kikohozi 3,
ambayo ni saraka hii chanzo.

896
00:41:36,900 --> 00:41:42,450
Kikohozi 3 na taarifa - oh, nilimwambia
hadithi ili makosa.

897
00:41:42,450 --> 00:41:45,030
Hebu kuokoa kutoka hadithi hii.

898
00:41:45,030 --> 00:41:48,990
>> hadithi mimi maana ya kuwaambia
kuishia na kikohozi 4 -

899
00:41:48,990 --> 00:41:50,270
huko ni.

900
00:41:50,270 --> 00:41:54,380
Basi nini kama mimi, badala yake, kufafanua
kubwa puzzle kipande kuitwa

901
00:41:54,380 --> 00:41:57,250
kufafanua, kusema neno n nyakati.

902
00:41:57,250 --> 00:41:59,930
Chafya tu, inaonekana,
katika Scratch, achoo.

903
00:41:59,930 --> 00:42:01,680
Hivyo sisi kueleza ni kama neno,
sababu tu kwamba

904
00:42:01,680 --> 00:42:02,750
Kikwazo wa mpango.

905
00:42:02,750 --> 00:42:07,860
Na kikohozi ni [kikohozi], lakini kikohozi,
C-O-U-G-H. Hivyo kwamba ni wawili tu

906
00:42:07,860 --> 00:42:10,820
maneno tofauti kufanya, kimsingi,
kitu kimoja.

907
00:42:10,820 --> 00:42:12,820
>> Hivyo mimi kweli anaweza kufanya
mpya ya kuzuia kama hii.

908
00:42:12,820 --> 00:42:14,220
Mimi si kutumia fursa hii orodha kabla.

909
00:42:14,220 --> 00:42:16,960
Lakini wakati wewe bonyeza kufanya Block,
unaweza kuchagua baadhi ya chaguzi.

910
00:42:16,960 --> 00:42:20,900
Na unaweza kusema kwamba hii kweli kuzuia
inachukua baadhi ya pembejeo, vinginevyo

911
00:42:20,900 --> 00:42:24,710
inajulikana kama hoja, au vigezo, hivyo
ambayo unaweza kurekebisha tabia ya

912
00:42:24,710 --> 00:42:25,520
kuzuia yako.

913
00:42:25,520 --> 00:42:28,780
>> Hivyo nini mimi wakati iliyopita ilikuwa
Mimi kuitwa block hii Sema.

914
00:42:28,780 --> 00:42:30,880
Na kisha nikasema, inachukua
pembejeo kamba.

915
00:42:30,880 --> 00:42:32,810
Na sasa taarifa, kwa default,
inasema string 1.

916
00:42:32,810 --> 00:42:35,440
kamba ni neno tu, au
maneno, kwa madhumuni yetu.

917
00:42:35,440 --> 00:42:37,810
Lakini nina kwenda tu kuweka baadhi ya
placeholder Nakala huko, kama vile katika

918
00:42:37,810 --> 00:42:40,620
tovuti, wakati unaweza kuona jina la mtumiaji, au
password, na kisha kutoweka wakati

919
00:42:40,620 --> 00:42:41,550
kuanza kuandika.

920
00:42:41,550 --> 00:42:42,720
Hayo ni yote kwamba ni.

921
00:42:42,720 --> 00:42:44,590
>> Na sasa mimi naenda
kuongeza idadi ya pembejeo.

922
00:42:44,590 --> 00:42:47,180
Na mimi naenda kuwaita hii n -
lakini kwamba pretty holela.

923
00:42:47,180 --> 00:42:49,510
Na kisha tu studio, tu kufanya
hii block zaidi kidogo binafsi

924
00:42:49,510 --> 00:42:50,570
maelezo -

925
00:42:50,570 --> 00:42:53,010
nyakati, kwamba ni nini mimi tu alivyofanya.

926
00:42:53,010 --> 00:42:56,540
Na matokeo ya mwisho ni kwamba mimi kupata
kuzuia kwamba inaonekana kama hii.

927
00:42:56,540 --> 00:42:58,880
>> Na sasa taarifa, mimi nina kutumia
kuzuia kurudia.

928
00:42:58,880 --> 00:43:03,480
Lakini badala ya coding ngumu tatu, mimi nina
akawatoa na kuacha n huko hivyo mimi

929
00:43:03,480 --> 00:43:05,530
unaweza parametrize kazi.

930
00:43:05,530 --> 00:43:08,590
Siwezi kufanya kazi hii kufanya kitu
idadi tofauti ya mara ya msingi ya

931
00:43:08,590 --> 00:43:09,410
kwamba thamani.

932
00:43:09,410 --> 00:43:14,270
>> Na taarifa, kusema, hii ni nini mimi
hapa, kama mimi Drag neno, naweza kusema si

933
00:43:14,270 --> 00:43:17,860
ngumu coded neno, lakini chochote
ni kupita katika pili kwa moja.

934
00:43:17,860 --> 00:43:20,200
Wakati huo huo, jinsi gani mimi tena kutekeleza
kikohozi?

935
00:43:20,200 --> 00:43:26,980
Mimi badala kufafanua kama kikohozi
akisema kikohozi n nyakati.

936
00:43:26,980 --> 00:43:30,480
>> Hivyo katika muda mfupi, nina kwenda kwa njia hii
haraka, lakini wazo msingi ni kama hivi karibuni

937
00:43:30,480 --> 00:43:32,750
kama wewe kuanza kuona katika mpango wako
kwamba, kusubiri dakika, mimi tumefanya

938
00:43:32,750 --> 00:43:36,610
kitu kabisa kama hii kabla,
naweza sababu nje baadhi ya kawaida

939
00:43:36,610 --> 00:43:37,090
utendaji?

940
00:43:37,090 --> 00:43:41,090
Naweza kutengana nini mimi kufanya
katika baadhi ya mawazo ya msingi?

941
00:43:41,090 --> 00:43:42,070
Hiyo ni nini tuko kufanya hapa.

942
00:43:42,070 --> 00:43:44,830
Na nimekuwa sifa mambo haya, kuibua,
juu ya mtu mwingine

943
00:43:44,830 --> 00:43:47,710
sababu ni ushahidi wa kwamba wazo la
kuanzia na binary, kwenda ASCII,

944
00:43:47,710 --> 00:43:51,530
kufanya mipango grafiki, aina ya
layering inazidi tata mawazo juu ya

945
00:43:51,530 --> 00:43:52,570
juu ya mtu mwingine.

946
00:43:52,570 --> 00:43:53,730
>> Same wazo hapa.

947
00:43:53,730 --> 00:43:56,870
Mimi ilianza kutoka Scratch, kutekeleza
kukohoa, kisha waligundua kukohoa ni

948
00:43:56,870 --> 00:43:58,540
kweli tu kusema kitu.

949
00:43:58,540 --> 00:44:01,630
Hivyo basi mimi badala kutekeleza
dhana ya kusema kitu.

950
00:44:01,630 --> 00:44:05,200
Na juu ya kwamba, naweza kutekeleza
achoo, au kikohozi?

951
00:44:05,200 --> 00:44:07,990
Na tunaweza kufanya zaidi ya vile
lahaja bado.

952
00:44:07,990 --> 00:44:10,400
>> Hivyo kutokana na kanuni hii ya msingi,
tunaweza kuanza kufanya

953
00:44:10,400 --> 00:44:12,180
inazidi tata mipango.

954
00:44:12,180 --> 00:44:14,100
Napenda kufungua hii moja.

955
00:44:14,100 --> 00:44:18,020
Tunaweza kweli kuwa sprites nyingi
mazungumzo juu ya screen kwa mara moja.

956
00:44:18,020 --> 00:44:23,470
Kama mimi kwenda katika chanzo saraka yangu na
kunyakua moja Threads kinachoitwa, kukumbuka kwamba

957
00:44:23,470 --> 00:44:26,920
thread ni kweli tu uwezo
wa wawili scripts kukimbia bega kwa

958
00:44:26,920 --> 00:44:28,350
upande kwa wakati mmoja.

959
00:44:28,350 --> 00:44:34,490
>> Taarifa sasa, kuwa wote sprite ndege na
sprite paka, wote wawili ambao

960
00:44:34,490 --> 00:44:35,270
maandiko yao wenyewe.

961
00:44:35,270 --> 00:44:37,690
Hivyo taarifa, wakati mimi bonyeza
paka, mimi kupata maandiko haya.

962
00:44:37,690 --> 00:44:39,830
Wakati mimi bonyeza ndege,
Mimi kupata maandiko haya.

963
00:44:39,830 --> 00:44:42,070
Basi kila mmoja wa guys hawa ina
mipango yake mwenyewe.

964
00:44:42,070 --> 00:44:46,680
Wakati mimi sasa bonyeza bendera ya kijani, taarifa
kwamba kile mpango huu gani ni

965
00:44:46,680 --> 00:44:54,090
kuwa na paka, incredibly
polepole, baada ya ndege.

966
00:44:54,090 --> 00:44:57,120
Lakini paka ina faida ya kuwa na
wamekuwa iliyowekwa katika namna

967
00:44:57,120 --> 00:45:00,540
kwamba hakuna jambo ambapo ndege
ni, paka huenda kuelekea kwake.

968
00:45:00,540 --> 00:45:02,150
>> Tunaweza kucheza mchezo huo kwa kasi zaidi.

969
00:45:02,150 --> 00:45:07,750
Hivyo kama mimi nina juu ya paka, taarifa kwamba mimi nina
kutumia, hebu kusema hoja ya hatua moja.

970
00:45:07,750 --> 00:45:11,680
Hebu kuwa naye hoja ya hatua tano katika
wakati, hivyo tano dots wakati huo.

971
00:45:11,680 --> 00:45:13,580
Hebu bofya kucheza.

972
00:45:13,580 --> 00:45:14,490
>> [Kishindo Simba'S]

973
00:45:14,490 --> 00:45:17,170
>> DAVID Malan: zote haki, sasa tunaweza
kweli kutoa paka faida.

974
00:45:17,170 --> 00:45:18,600
10 hatua kwa wakati.

975
00:45:18,600 --> 00:45:20,120
>> [Kishindo Simba'S]

976
00:45:20,120 --> 00:45:22,770
>> DAVID Malan: zote haki, hivyo haraka sana,
anapata faida kidogo

977
00:45:22,770 --> 00:45:23,280
kwa ajili ya paka.

978
00:45:23,280 --> 00:45:25,310
Lakini mimi itabidi kupitisha mkono wangu katika
baadhi ya maelezo.

979
00:45:25,310 --> 00:45:28,240
Lakini sababu kwamba njia ya kwamba ni
kuanzia kidogo tofauti kila wakati

980
00:45:28,240 --> 00:45:29,700
ni kwamba mimi nina kufanya kidogo ya randomness.

981
00:45:29,700 --> 00:45:33,700
Mimi kwa kweli akizungumzia paka katika
mwelekeo tofauti kulingana na ambapo mimi

982
00:45:33,700 --> 00:45:38,710
wanataka yeye kuanza ili kila wakati
mchezo, au uhuishaji, ni

983
00:45:38,710 --> 00:45:39,760
kidogo kidogo tofauti.

984
00:45:39,760 --> 00:45:41,950
>> Sasa, basi mimi kuanzisha moja
nyingine kujenga hapa.

985
00:45:41,950 --> 00:45:43,860
Hivyo katika kesi hii, tulikuwa na kazi.

986
00:45:43,860 --> 00:45:46,950
Kuna pia kwenda kuwa kipande puzzle
inayojulikana kama safu, au orodha,

987
00:45:46,950 --> 00:45:50,980
kwamba utapata kuhifadhi nyingi
maadili ndani ya kutofautiana.

988
00:45:50,980 --> 00:45:53,410
Tuliona nyuzi, na sasa
kuna Matukio.

989
00:45:53,410 --> 00:45:56,330
>> Hivyo hapa ni tukio kutumia
haya guys mbili hapa.

990
00:45:56,330 --> 00:46:02,490
Na kama mimi kufungua faili inayoitwa Matukio
kutokana na mifano ya leo, sisi

991
00:46:02,490 --> 00:46:06,940
kuona mpango kwamba inaonekana
kidogo kama hii.

992
00:46:06,940 --> 00:46:09,630
Na sasa taarifa hii guy -

993
00:46:09,630 --> 00:46:11,620
hivyo taarifa mimi kuwa bluu
Muppet clicked -

994
00:46:11,620 --> 00:46:12,990
yeye tu anafanya yafuatayo.

995
00:46:12,990 --> 00:46:15,540
Yeye hana kuwa mmoja wa wale
kijani bendera puzzle vipande vipande.

996
00:46:15,540 --> 00:46:18,620
Yeye ana wakati mimi kupokea tukio hilo -

997
00:46:18,620 --> 00:46:19,970
hivyo baadhi ya neno holela.

998
00:46:19,970 --> 00:46:21,590
Mimi tu typed nje tukio huko -

999
00:46:21,590 --> 00:46:23,740
yeye kwenda kusema, Polo,
kwa sekunde mbili.

1000
00:46:23,740 --> 00:46:25,800
>> Hivyo wale ambao ni ukoo
na mchezo huu ili kujua

1001
00:46:25,800 --> 00:46:26,460
ambapo hii ni kwenda.

1002
00:46:26,460 --> 00:46:29,800
Kama mimi sasa bonyeza Muppet machungwa,
mpango wake gani hii.

1003
00:46:29,800 --> 00:46:35,020
Milele, kama nafasi keyboard bar
suppressed, yeye ni kwenda kusema, Marco,

1004
00:46:35,020 --> 00:46:36,580
kwa sekunde mbili kwenye screen.

1005
00:46:36,580 --> 00:46:39,590
Lakini yeye pia kwenda kutumia hii fancier
kuzuia inayojulikana kama matangazo.

1006
00:46:39,590 --> 00:46:42,270
Yeye kwenda kwa matangazo ya kunukuu
unquote, "tukio hilo."

1007
00:46:42,270 --> 00:46:47,540
>> Wakati huo huo, guy bluu, kukumbuka, ni
kusikiliza kwa quote unquote, "tukio hilo."

1008
00:46:47,540 --> 00:46:50,760
Hivyo kwa namna fulani, sasa, tunaweza kuwa na
mbili sprites mazungumzo.

1009
00:46:50,760 --> 00:46:53,790
Na wakati sisi kupata programu ya mtandao,
baadaye katika muhula, vile vile hii itakuwa

1010
00:46:53,790 --> 00:46:58,320
kuwa faida ya kuwa na tovuti yako
kufanya kitu katika kukabiliana na, kwa ajili ya

1011
00:46:58,320 --> 00:47:00,130
mfano, bonyeza ya keyboard.

1012
00:47:00,130 --> 00:47:02,120
>> Hivyo basi mimi kwenda mbele na
hit bar nafasi.

1013
00:47:02,120 --> 00:47:04,020
Machungwa guy anasema Marco.

1014
00:47:04,020 --> 00:47:05,840
Blue guy anasema Polo.

1015
00:47:05,840 --> 00:47:10,780
Kama mimi kufanya hivyo tena machungwa guy anasema
Marco, bluu guy anasema Polo.

1016
00:47:10,780 --> 00:47:14,130
Basi hebu kuchukua hatua hii moja zaidi.

1017
00:47:14,130 --> 00:47:18,790
Wakati huu, tutaweza kwenda, pengine,
chache tu zaidi ya dakika hapa.

1018
00:47:18,790 --> 00:47:19,904
Je, tuna -

1019
00:47:19,904 --> 00:47:22,380
dawati taa, kuja juu chini.

1020
00:47:22,380 --> 00:47:24,500
Wewe ni haki juu ya mwisho.

1021
00:47:24,500 --> 00:47:25,740
OK, unaweza wote kuja.

1022
00:47:25,740 --> 00:47:26,990
Tuna dawati taa kwa ajili ya kila mtu.

1023
00:47:26,990 --> 00:47:28,360
Kuja juu.

1024
00:47:28,360 --> 00:47:30,090
Sijui kama tunaweza kuweka
hii gag ujinga hadi

1025
00:47:30,090 --> 00:47:32,035
kila muhula, ingawa.

1026
00:47:32,035 --> 00:47:33,530
Haki ya wote, kuja juu chini.

1027
00:47:33,530 --> 00:47:40,260
>> Na wakati huo huo, tuna
kufuatia mifano ya kuvuta juu, tu

1028
00:47:40,260 --> 00:47:45,370
kuharakisha mambo sasa, vile kwamba sisi
kuwa na mwangaza kutoka mwingine

1029
00:47:45,370 --> 00:47:48,360
mtangulizi wa kwako kutumia
huo msingi ujenzi wa vitalu.

1030
00:47:48,360 --> 00:47:48,975
Nini jina lako?

1031
00:47:48,975 --> 00:47:49,240
>> JOHN: John.

1032
00:47:49,240 --> 00:47:49,770
>> DAVID Malan: John.

1033
00:47:49,770 --> 00:47:50,400
Nzuri kwangu wewe.

1034
00:47:50,400 --> 00:47:50,650
Na?

1035
00:47:50,650 --> 00:47:51,250
>> SETZ: Setz.

1036
00:47:51,250 --> 00:47:53,130
>> DAVID Malan: Setz, nice kwangu wewe.

1037
00:47:53,130 --> 00:47:54,820
John, kama Ningependa kuja
juu ya kwanza, hii ni ya zamani

1038
00:47:54,820 --> 00:47:55,910
shule mchezo aitwaye Frogger.

1039
00:47:55,910 --> 00:47:57,530
Kutumia keyboard kwa ajili ya hili pia.

1040
00:47:57,530 --> 00:48:02,425
Na lengo ni kupata hela
mitaani na maji.

1041
00:48:02,425 --> 00:48:12,700
>> [Frogger MUSIC na ina SAUTI]

1042
00:48:12,700 --> 00:48:14,970
>> DAVID Malan: Samahani, hakuna
dawati taa kwa leo.

1043
00:48:14,970 --> 00:48:19,110
Haki zote, Setz, je
kama kuja juu juu?

1044
00:48:19,110 --> 00:48:20,890
Haki zote, hebu kufanya hivyo tena.

1045
00:48:20,890 --> 00:48:21,430
>> SETZ: Je, mimi kutumia mishale?

1046
00:48:21,430 --> 00:48:22,360
>> DAVID Malan: Tu funguo mshale.

1047
00:48:22,360 --> 00:48:23,624
Juu, chini, kushoto, kulia.

1048
00:48:23,624 --> 00:48:35,700
>> [Frogger MUSIC na ina SAUTI]

1049
00:48:35,700 --> 00:48:37,880
>> DAVID Malan: Tutaweza kuwaita
faraja zawadi leo,

1050
00:48:37,880 --> 00:48:38,950
basi, vizuri sana kufanyika.

1051
00:48:38,950 --> 00:48:40,690
Hapa, kwa nyote wawili, John na Setz.

1052
00:48:40,690 --> 00:48:41,940
Hongera, wote haki.

1053
00:48:41,940 --> 00:48:46,720

1054
00:48:46,720 --> 00:48:50,620
Basi tena, kama mchezo huu ina,
kufikiri juu ya nini kinaendelea?

1055
00:48:50,620 --> 00:48:52,060
>> Moja, kuna mengi ya wazi mwendo.

1056
00:48:52,060 --> 00:48:55,220
Lakini tumeona jinsi gani, na paka na
ndege mfano, jinsi gani unaweza kufanya

1057
00:48:55,220 --> 00:48:58,350
udanganyifu wa mwendo na kusonga tu baadhi ya
idadi ya saizi tena na tena.

1058
00:48:58,350 --> 00:49:00,280
Na kama una kuzuia milele,
unaweza kuwa na hizi

1059
00:49:00,280 --> 00:49:02,120
magari ya kufanya hii milele.

1060
00:49:02,120 --> 00:49:03,720
Tuna uwezo wa
kuwa na baadhi ya randomness.

1061
00:49:03,720 --> 00:49:06,310
Hivyo mchezo huu haina kuwa
sawa kila wakati.

1062
00:49:06,310 --> 00:49:09,940
Wale magogo, wale magari, wanaweza kuanza saa
tofauti kidogo mara ili

1063
00:49:09,940 --> 00:49:12,690
mchezo yenyewe ni zaidi ya kuvutia
na kila mchezo mchezo.

1064
00:49:12,690 --> 00:49:15,320
>> Na Wakati huo huo, tumeona uwezo
kusikiliza bar nafasi.

1065
00:49:15,320 --> 00:49:18,830
Lakini ni wazi, katika Scratch, unaweza pia
kusikiliza kwa juu, chini, kushoto, kulia, na

1066
00:49:18,830 --> 00:49:20,760
kweli yoyote ya msingi kwenye keyboard.

1067
00:49:20,760 --> 00:49:22,200
Na pia unaweza kufanya baadhi ya mambo mengine.

1068
00:49:22,200 --> 00:49:24,660
Hebu kwenda mbele na kurudi nyuma
na toleo mtandao.

1069
00:49:24,660 --> 00:49:30,280
>> Hebu kwenda katika ukusanyaji yetu
ya mifano hapa.

1070
00:49:30,280 --> 00:49:36,120
Na chini ya studio yangu, video ambayo
ni, kimsingi, folder kwenye

1071
00:49:36,120 --> 00:49:37,780
scratch.mit.edu.

1072
00:49:37,780 --> 00:49:39,710
Tuna mtandao wa matoleo
wote wa miradi hii.

1073
00:49:39,710 --> 00:49:42,530
Na hebu angalia kama naweza kupata yangu
kompyuta kwa kushirikiana hapa.

1074
00:49:42,530 --> 00:49:47,180
Hii imeandikwa na mmoja wa marafiki zetu
katika MIT, aitwaye Hoja Butterfly.

1075
00:49:47,180 --> 00:49:50,250
>> Na mara hii kufungua, hii ni
kwenda kweli kutumia zaidi ya

1076
00:49:50,250 --> 00:49:51,430
kompyuta yangu ya vifaa.

1077
00:49:51,430 --> 00:49:53,325
Mwanzo hutokea kutekelezwa
na Kiwango cha.

1078
00:49:53,325 --> 00:49:56,250
Kiwango cha wanaweza kuzungumza na webcam yako,
kama una moja.

1079
00:49:56,250 --> 00:50:00,210
Hivyo kama mimi kwenda mbele na screen kamili hii
hapa, bonyeza bendera ya kijani, ilani

1080
00:50:00,210 --> 00:50:02,530
kuwa usalama Kiwango cha ujumbe
ni kusema, unataka

1081
00:50:02,530 --> 00:50:04,210
kuruhusu kutumia webcam wangu?

1082
00:50:04,210 --> 00:50:05,510
>> Kawaida, unapaswa
pengine kusema Kataza.

1083
00:50:05,510 --> 00:50:07,180
Lakini katika kesi hii, tutaweza kusema kuruhusu.

1084
00:50:07,180 --> 00:50:10,430
Basi mimi naenda kuwaambia Chrome
kuruhusu hili pia.

1085
00:50:10,430 --> 00:50:15,010
Na sasa, katika muda tu,
unaweza kuona kwangu, yep, mimi.

1086
00:50:15,010 --> 00:50:18,154
Na kama mkono wangu huenda juu -

1087
00:50:18,154 --> 00:50:20,390
Mimi nimepata si hoja yangu
kichwa kwa wakati mmoja.

1088
00:50:20,390 --> 00:50:21,740
Kuna pia kutafakari
kwenye screen.

1089
00:50:21,740 --> 00:50:23,480
Haya, kuna sisi kwenda -

1090
00:50:23,480 --> 00:50:27,616
unaweza hoja hiyo juu ya screen kwa sababu
pia kuna puzzle vipande - oh, wewe

1091
00:50:27,616 --> 00:50:31,640
kujua ni nini, ni kwa sababu wewe pia
kuona screen Projector nyuma yangu.

1092
00:50:31,640 --> 00:50:33,870
Hivyo tuna usio kidogo
kitu kinachoendelea huko.

1093
00:50:33,870 --> 00:50:36,470
>> Haki wote, hivyo mimi itabidi kucheza chini hapa.

1094
00:50:36,470 --> 00:50:37,220
Kuna sisi kwenda.

1095
00:50:37,220 --> 00:50:41,310
Hivyo kuna pia kipande puzzle kwamba
anasema, wakati unaweza kuona harakati chini ya

1096
00:50:41,310 --> 00:50:45,470
moja ya sprites, unaweza kuwa ni kwenda
juu, chini, kushoto, kulia au kama.

1097
00:50:45,470 --> 00:50:48,950
Hivyo tuna kidogo ya ukweli virtual
kinachoendelea hapa pia, yote ndani ya

1098
00:50:48,950 --> 00:50:52,570
mipaka ya browser yangu, tu
hapa kwa kutumia webcam yangu.

1099
00:50:52,570 --> 00:50:53,980
Basi nini basi juu ya upeo wa macho.

1100
00:50:53,980 --> 00:50:58,350
kwanza tatizo kuweka, kama utaona,
au tovuti ya kwenda online baadaye

1101
00:50:58,350 --> 00:51:01,100
leo usiku kwenye cs50.net, ni pretty
sana kwenda kuwa wazi kumalizika.

1102
00:51:01,100 --> 00:51:04,410
Na kutekeleza mradi Scratch
wa maslahi na wewe, mchezo,

1103
00:51:04,410 --> 00:51:08,350
mwingiliano, kitu kisanii, na
changamoto mwenyewe kwa kutumia idadi yoyote

1104
00:51:08,350 --> 00:51:09,660
ya vipande puzzle haya.

1105
00:51:09,660 --> 00:51:11,580
Na inaweza ama kuwa maingiliano
kwa njia hii.

1106
00:51:11,580 --> 00:51:15,470
Au inaweza kuwa ni kitu zaidi kwa makusudi
kufanywa kwa kuwaambia hadithi.

1107
00:51:15,470 --> 00:51:19,200
>> Na hakika, hiyo ambapo tutaweza kumaliza mbali
leo, pamoja na mfano mmoja wa mwisho.

1108
00:51:19,200 --> 00:51:21,290
Hebu kwenda katika Scratch ndani ya nchi.

1109
00:51:21,290 --> 00:51:25,300
Hebu kwenda mbele na kufungua hii, na kucheza
moja ya mwisho ya mpango iliyoandikwa na moja

1110
00:51:25,300 --> 00:51:29,795
ya watangulizi wako, yaani
kwamba moja hapa.

1111
00:51:29,795 --> 00:51:32,960

1112
00:51:32,960 --> 00:51:35,938
Nzuri, kuongeza kiasi kwa ajili ya hii moja.

1113
00:51:35,938 --> 00:52:53,770
>> [Halisi kucheza]

1114
00:52:53,770 --> 00:52:57,255
>> NARRATOR: CS50 ijayo, Daudi
inakaribisha kujitolea onstage.

1115
00:52:57,255 --> 00:52:58,636
>> DAVID Malan: Kwa onyesho hili,
tunakwenda haja moja kujitolea.

1116
00:52:58,636 --> 00:53:01,050
Ungependa kuja juu chini?

1117
00:53:01,050 --> 00:53:02,300
Nini jina lako?

1118
00:53:02,300 --> 00:53:05,320

1119
00:53:05,320 --> 00:53:06,570
Kuhama.

1120
00:53:06,570 --> 00:53:08,394