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1
00:00:00,000 --> 00:00:02,418
>> [Jwe mizik]

2
00:00:02,418 --> 00:00:10,542

3
00:00:10,542 --> 00:00:12,000
ALLISON BUCHHOLTZ-AU: Hey tout moun.

4
00:00:12,000 --> 00:00:15,640
Byenveni nan premye ou
ofisyèl seksyon CS50.

5
00:00:15,640 --> 00:00:19,507
Kòm ou ka, gade sa a se
seksyon CS50-tankou, jis

6
00:00:19,507 --> 00:00:20,840
rale moute ajanda nou an pou jodi a.

7
00:00:20,840 --> 00:00:23,990
Se konsa, mwen, ki moun ki jan mwen si ke
w ap tout mande.

8
00:00:23,990 --> 00:00:25,514
Se mwen menm ki TF ou yo.

9
00:00:25,514 --> 00:00:27,930
Mwen pa jis yon elèv o aza
ki moun ki nan impersonating TF ou yo.

10
00:00:27,930 --> 00:00:31,190
>> Apre sa, mwen pral yo ale nan
kalite gen seksyon pral koule,

11
00:00:31,190 --> 00:00:34,900
atant nou genyen,
resous, sou sa ak pou fè.

12
00:00:34,900 --> 00:00:39,190
Nou pral pale sou ranje, ASCII
fonksyon, lòd-liy agiman,

13
00:00:39,190 --> 00:00:42,020
ak li nan pa sou isit la, men
Mwen ap tou ap ede

14
00:00:42,020 --> 00:00:45,054
ou kalite panse a
pset pwochèn ou an pou semèn sa a.

15
00:00:45,054 --> 00:00:46,720
Ki Mwen si ou pral tout apresye.

16
00:00:46,720 --> 00:00:48,190

17
00:00:48,190 --> 00:00:53,390
>> Se konsa, premye question-- menm ki mwen menm,
san konte TF débordan ou isit la.

18
00:00:53,390 --> 00:00:55,390
Mwen se Alison Buchholtz-Au.

19
00:00:55,390 --> 00:00:57,970
Sa a se dezyèm ane mwen TFing CS50.

20
00:00:57,970 --> 00:01:00,570
Mwen menm mwen te CS51 TF nan Prentan an.

21
00:01:00,570 --> 00:01:03,930
Ou ta ka wè ankò gen
si ou deside pran li.

22
00:01:03,930 --> 00:01:07,370
Mwen se tou yon ba PAF, se konsa nenpòt Freshmen--
ak si ou pa yon elèv nevyèm ane,

23
00:01:07,370 --> 00:01:09,980
sa a se twazyèm ane mwen
kòm yon parèy konsèy.

24
00:01:09,980 --> 00:01:13,630
Mwen trè byen vèrs nan
konsèy ou sou lavi ak kou

25
00:01:13,630 --> 00:01:16,549
ki nan CS epi yo pa nan CS.

26
00:01:16,549 --> 00:01:18,090
Mwen se yon Syans konsantrateur enfòmatik.

27
00:01:18,090 --> 00:01:20,800
Mwen se yon wo grade nan Adams House, pi bon kay la.

28
00:01:20,800 --> 00:01:22,430

29
00:01:22,430 --> 00:01:26,050
Epi mwen anvan m 'chanje
CS mwen Sophomore Prentan,

30
00:01:26,050 --> 00:01:27,640
Mwen te aktyèlman yon enjenyè yomedikal.

31
00:01:27,640 --> 00:01:29,020
Mwen te ale pou yo ale nan Med lekòl la.

32
00:01:29,020 --> 00:01:30,530
Mwen te ale nan gen yon chirijyen chòk.

33
00:01:30,530 --> 00:01:33,000
Epi ki gen konplètman
chanje depi mwen te pran CS50.

34
00:01:33,000 --> 00:01:34,250

35
00:01:34,250 --> 00:01:36,310
Mwen te pran kou nan Otòn Sophomore mwen.

36
00:01:36,310 --> 00:01:38,920
Li te premye entwodiksyon mwen an CS tout tan.

37
00:01:38,920 --> 00:01:44,104
Mwen te youn nan% a 78 nan nou ki
te zewo eksperyans vini nan,

38
00:01:44,104 --> 00:01:45,520
epi li chanje konplètman lavi m '.

39
00:01:45,520 --> 00:01:49,820
Epi, koulye a mwen k ap travay nan
Microsoft, ak TF bèl ou.

40
00:01:49,820 --> 00:01:53,500
Epi CS50 se pwobableman youn
nan eksperyans yo pi byen

41
00:01:53,500 --> 00:01:56,210
ki mwen te gen isit la nan
Harvard tou de pran klas la

42
00:01:56,210 --> 00:01:59,040
epi yo te kapab ede
anseye elèv tankou ou.

43
00:01:59,040 --> 00:02:01,410
>> Se konsa, mwen vrèman eksite
ke w ap tout isit la.

44
00:02:01,410 --> 00:02:04,270
Nan ka ou te vini nan
an reta, gen sirèt,

45
00:02:04,270 --> 00:02:07,227
ki ou ta dwe santi
lib yo vini pwan, oswa voye

46
00:02:07,227 --> 00:02:08,560
yon lòt moun gen tan pwan li pou ou.

47
00:02:08,560 --> 00:02:09,399
li nan OK.

48
00:02:09,399 --> 00:02:10,440
Mwen pa vle manje sa.

49
00:02:10,440 --> 00:02:13,350
Chanm mwen gen ase chokola, se konsa
y'all ta dwe eseye epi fini sa.

50
00:02:13,350 --> 00:02:16,730
Mwen konnen gen 100 moso,
men tankou, 4 è sou yon Lendi,

51
00:02:16,730 --> 00:02:19,000
Mwen panse ke tout moun te kapab sèvi ak kèk sik.

52
00:02:19,000 --> 00:02:21,750
>> Se konsa, tout nan nou ki yo
ofisyèlman nan seksyon m '

53
00:02:21,750 --> 00:02:24,700
ta dwe gen vinn yon imèl
nan men m 'ak nimewo telefòn mwen an,

54
00:02:24,700 --> 00:02:29,920
imel address-- santi yo lib yo ajoute m 'sou
Gchat, santi yo lib yo ajoute m 'sou Facebook,

55
00:02:29,920 --> 00:02:33,360
epi tou pou rès la nan ou,
ou ka voye yon imèl ba m 'isit la menm.

56
00:02:33,360 --> 00:02:34,450
Gen de H la.

57
00:02:34,450 --> 00:02:37,090
Tout moun toujou fè
tankou de L'a oswa de C a.

58
00:02:37,090 --> 00:02:38,260
De H la nan non an dènye.

59
00:02:38,260 --> 00:02:41,800
Sinon li a pral rebondisman, ak
Mwen pa pral jwenn imel ou.

60
00:02:41,800 --> 00:02:46,400
>> Se konsa, santi yo lib yo voye yon imèl ba m ',
Kontakte m 'nan nenpòt ki lè.

61
00:02:46,400 --> 00:02:51,440
Mwen pa ka jwenn tounen nan
ou nan lespas 24 minit,

62
00:02:51,440 --> 00:02:53,760
men mwen te pwomèt jwenn tounen
ou nan 24 èdtan.

63
00:02:53,760 --> 00:02:54,900

64
00:02:54,900 --> 00:02:58,067
Si ou rele m 'mwatye yon èdtan anvan
pset ou a se akòz, ou ke yo te tankou,

65
00:02:58,067 --> 00:02:59,650
Mwen pa gen okenn lide ki sa m ap fè Allison.

66
00:02:59,650 --> 00:03:00,160
Ede m '.

67
00:03:00,160 --> 00:03:04,049
Mwen pral kalme ou desann,
men nan fen jounen an,

68
00:03:04,049 --> 00:03:07,340
si w ap rele m 'mwatye yon èdtan anvan
pset ou a se akòz ak pa gen anyen ekri,

69
00:03:07,340 --> 00:03:11,570
Mwen pral dwe tankou, byen, petèt
li lè yo sèvi ak jou sa a an reta.

70
00:03:11,570 --> 00:03:15,215
Se konsa, mwen pral reponn a tout nan ou
demann nan yon fason trè alè.

71
00:03:15,215 --> 00:03:16,482

72
00:03:16,482 --> 00:03:18,190
Telefòn mwen se nòmalman
tache ak men m '.

73
00:03:18,190 --> 00:03:21,530
Mwen tipikman reponn anpil
pi vit pase 24 èdtan,

74
00:03:21,530 --> 00:03:25,650
men mwen ka sèlman garanti
yon repons 24 èdtan.

75
00:03:25,650 --> 00:03:26,580
>> Tout dwa.

76
00:03:26,580 --> 00:03:28,410
Se konsa, poukisa nou isit la?

77
00:03:28,410 --> 00:03:32,160
Epitou, si w gen kesyon an
nenpòt ki lè, tanpri kite m 'konnen.

78
00:03:32,160 --> 00:03:32,780
Mwen pale yon anpil.

79
00:03:32,780 --> 00:03:35,320
Mwen pale vit, men tanpri
santi yo lib yo entèwonp m '.

80
00:03:35,320 --> 00:03:36,980
Li ban mwen respire chanm kòm byen.

81
00:03:36,980 --> 00:03:38,159

82
00:03:38,159 --> 00:03:40,200
Se konsa, seksyon yo se yon tan
pou nou pou n vrèman jis plonje

83
00:03:40,200 --> 00:03:44,270
nan, jwenn kèk men-sou eksperyans,
ale nan sijè ki nou mansyone

84
00:03:44,270 --> 00:03:49,760
nan klas oswa nan materyèl etid ki
nou rekòmande pou ou nèg sou entènèt.

85
00:03:49,760 --> 00:03:52,980
Epitou, n ap aktyèlman ale nan
kèk nan moun resous nan yon ti jan.

86
00:03:52,980 --> 00:03:54,300

87
00:03:54,300 --> 00:03:57,400
>> Se konsa, kèk nòt sou seksyon sipò.

88
00:03:57,400 --> 00:04:00,250
CS50-- youn nan bagay ki fè
li se youn nan klas pi renmen m '

89
00:04:00,250 --> 00:04:02,510
se santi a ke ou se pa janm pou kont li.

90
00:04:02,510 --> 00:04:05,430
Nou gen yon anplwaye nan plis pase 100
moun ki gen isit la ede ou.

91
00:04:05,430 --> 00:04:08,080
Nou gen lè biwo
Lendi jiska Jedi.

92
00:04:08,080 --> 00:04:13,230
Se konsa, gen yo, se pou anpil moun ki
renmen klas la menm jan anpil jan mwen fè

93
00:04:13,230 --> 00:04:15,750
ak ki moun ki yo se reyèlman isit la
paske yo vle yo dwe isit la.

94
00:04:15,750 --> 00:04:19,390
Pifò nan nou yo se elèv, ak sa a
se tankou yon klas senkyèm nan de sa

95
00:04:19,390 --> 00:04:20,390
nan rès la nan travay nou an.

96
00:04:20,390 --> 00:04:22,723
>> Lè li nan yon anpil nan travay, men
nou fè l 'paske nou renmen li,

97
00:04:22,723 --> 00:04:25,600
epi nou reyèlman renmen yo anseye ou
epi ede pataje eksitasyon nou an

98
00:04:25,600 --> 00:04:27,260
pou sijè sa a ak klas sa a.

99
00:04:27,260 --> 00:04:28,490
Se konsa, tanpri pran avantaj.

100
00:04:28,490 --> 00:04:29,370
Vini non pale ak nou.

101
00:04:29,370 --> 00:04:33,034
Mwen jwenn poukont lè elèv mwen an
pa pale ak m ', Se konsa, si ou vle,

102
00:04:33,034 --> 00:04:33,950
vini pann soti avè m '.

103
00:04:33,950 --> 00:04:35,200
Li pral gen gwo pouvwa.

104
00:04:35,200 --> 00:04:37,400
>> Se konsa, seksyon se evidamman
youn nan pi gwo bagay sa yo ou yo.

105
00:04:37,400 --> 00:04:41,770
Nou pral ale nan bagay sa yo
ke ou te aprann nan konferans,

106
00:04:41,770 --> 00:04:44,100
fè kèk egzanp kout
lè nou gen tan,

107
00:04:44,100 --> 00:04:46,187
epi jeneralman kalite
jwenn yon lide sou bagay sa yo

108
00:04:46,187 --> 00:04:48,270
ou ta dwe panse
sou pou pwoblèm ou mete.

109
00:04:48,270 --> 00:04:49,540

110
00:04:49,540 --> 00:04:53,591
Shorts-- konbyen moun ki aktyèlman
ap gade videyo a nan grate ou

111
00:04:53,591 --> 00:04:54,090
kout?

112
00:04:54,090 --> 00:04:55,460

113
00:04:55,460 --> 00:04:57,390
Nenpòt moun ki rekonèt mwen?

114
00:04:57,390 --> 00:04:59,720
Se konsa, moun yo trè gwo.

115
00:04:59,720 --> 00:05:01,210
Ou ta dwe definitivman gade sa yo.

116
00:05:01,210 --> 00:05:02,880
Yon anpil nan travay te mete nan yo.

117
00:05:02,880 --> 00:05:06,690
Apre sa, yo ap jis vle di yo dwe
mòde-gwosè moso pou ou pou w jis gade

118
00:05:06,690 --> 00:05:09,760
pou twa oswa kat minit epi pou yo jwenn yon
pi bon konprann nan yon konsèp.

119
00:05:09,760 --> 00:05:11,147

120
00:05:11,147 --> 00:05:12,980
Mache throughs-- ki jan
gen anpil moun ki te ap gade

121
00:05:12,980 --> 00:05:14,880
mache-kuvèt yo pou yo menm anvan yo?

122
00:05:14,880 --> 00:05:16,240
Zamyla se etonan, dwa?

123
00:05:16,240 --> 00:05:18,100
Tankou, mwen swete mwen te Zamyla pafwa.

124
00:05:18,100 --> 00:05:19,650

125
00:05:19,650 --> 00:05:21,640
Se konsa, definitivman sèvi ak ou mache-kuvèt.

126
00:05:21,640 --> 00:05:25,070
Li pral kraze li desann nan
moso piti, mòde-gwosè.

127
00:05:25,070 --> 00:05:28,079
Men, lè ou gen sa yo gwo
espesifikasyon soti nan aparèy televisyon HD pwoblèm ou an,

128
00:05:28,079 --> 00:05:30,870
li nan pral fè vrèman enpòtan
pou kapab jis jwenn yon kote

129
00:05:30,870 --> 00:05:32,600
yo kòmanse ak travay tou dousman atravè li.

130
00:05:32,600 --> 00:05:33,610

131
00:05:33,610 --> 00:05:40,260
>> Tout dwa, nou gen Study50, tou ki
se study50.harvard.edu, mwen kwè.

132
00:05:40,260 --> 00:05:42,270
Ou ka jis Google
etidye, epi li pral vini.

133
00:05:42,270 --> 00:05:45,750
Sa se youn nan la
pi bon resous nou genyen.

134
00:05:45,750 --> 00:05:49,800
Li se PowerPoints avèk nòt
ak pratike pwoblèm pou ou

135
00:05:49,800 --> 00:05:52,430
ak solisyon ke ou
ka aktyèlman mache nan.

136
00:05:52,430 --> 00:05:57,000
Se konsa, si ou te janm vle plis pratik,
plis pase nou fè nan seksyon oswa plis

137
00:05:57,000 --> 00:06:00,700
pase aparèy televisyon HD pwoblèm ou an, sa a se
reyèlman yon kote ki mwen ankouraje ou ale.

138
00:06:00,700 --> 00:06:03,590
Li te bati an ete dènye a pa
kèk nan reyèlman bon zanmi m '.

139
00:06:03,590 --> 00:06:04,480
Lè li nan etonan.

140
00:06:04,480 --> 00:06:05,540

141
00:06:05,540 --> 00:06:08,670
An reyalite, yon anpil nan glisad yo
ke mwen pral lè l sèvi avèk pou Seksyon

142
00:06:08,670 --> 00:06:10,190
ap soti nan Study50.

143
00:06:10,190 --> 00:06:12,000
>> Se konsa, yon anpil nan TFs nan sèvi ak li.

144
00:06:12,000 --> 00:06:13,920
Epi finalman, jan mwen
mansyone, lè biwo.

145
00:06:13,920 --> 00:06:15,836
Si w ap gen pwoblèm
avèk devwa, w ap

146
00:06:15,836 --> 00:06:18,270
gen pwoblèm ak yon
konsèp, vini nan lè biwo.

147
00:06:18,270 --> 00:06:20,190
Ale byen bonè nan semèn nan si ou kapab.

148
00:06:20,190 --> 00:06:23,130
Jwenn soti nan kwadwilatè a,
paske li se kalite byen lwen.

149
00:06:23,130 --> 00:06:24,780
Pa gen moun ki renmen mache deyò.

150
00:06:24,780 --> 00:06:27,090
Men, li se nan avantaj ou,
paske lè sa a ou se

151
00:06:27,090 --> 00:06:29,580
ale nan gen tout TFs sa yo,
[Fèbl] antoure ou.

152
00:06:29,580 --> 00:06:31,920
Epi espesyalman kounye a,
jis yon pwent, jedi

153
00:06:31,920 --> 00:06:35,310
yo trè fredi kounye a nan
Mather paske psets ou

154
00:06:35,310 --> 00:06:36,577
yo akòz sou Jedi.

155
00:06:36,577 --> 00:06:38,410
Ak konnen vle
itilize jou an reta ou ankò.

156
00:06:38,410 --> 00:06:40,030
>> Se konsa, si w ap gen
pwoblèm ak konsèp,

157
00:06:40,030 --> 00:06:41,780
gen anpil nan TFs ki
ki genyen ede ou.

158
00:06:41,780 --> 00:06:43,196
Se konsa, vini soti nan Mather nan Jedi.

159
00:06:43,196 --> 00:06:45,280
Si ou vle wè m ',
Mwen pral yo dwe la.

160
00:06:45,280 --> 00:06:48,870
Mwen tipikman fè devwa pwòp mwen an,
paske pa gen moun vle ede m 'yo.

161
00:06:48,870 --> 00:06:50,260
Se konsa, vini wè nou.

162
00:06:50,260 --> 00:06:51,460

163
00:06:51,460 --> 00:06:52,440
>> Jwenn nou mwatye.

164
00:06:52,440 --> 00:06:55,400
Se konsa, kouman anpil moun te ale nan
konferans oswa ap gade li sou entènèt?

165
00:06:55,400 --> 00:06:56,570

166
00:06:56,570 --> 00:06:59,140
Konbyen moun ki te ale nan
super seksyon semèn pase a?

167
00:06:59,140 --> 00:07:00,171

168
00:07:00,171 --> 00:07:00,670
Fre.

169
00:07:00,670 --> 00:07:02,190
Sa a se aktyèlman yon nimewo ki jis.

170
00:07:02,190 --> 00:07:05,425
Konbyen nan ou te li ou
espèk pou semèn sa a, pou pset ou a?

171
00:07:05,425 --> 00:07:07,081

172
00:07:07,081 --> 00:07:08,461
Ooh, mwen se fyè de ou nèg!

173
00:07:08,461 --> 00:07:09,335
Plis sirèt pou y'all.

174
00:07:09,335 --> 00:07:11,070

175
00:07:11,070 --> 00:07:13,280
>> Bon, se konsa sa nou vle di
"Jwenn nou mwatye," se

176
00:07:13,280 --> 00:07:16,440
seksyon ki se reyèlman sèlman
pral fè super itil ou

177
00:07:16,440 --> 00:07:19,810
si ou vini nan gen li ou
spesifikasyon pou pset ou yo.

178
00:07:19,810 --> 00:07:23,859
Paske lè m 'ale nan yon BECA
de bagay sa yo ou ta dwe ap chèche soti pou,

179
00:07:23,859 --> 00:07:25,650
li pa pral fè
kòm anpil sans si ou

180
00:07:25,650 --> 00:07:28,358
pa konnen ki sa pwoblèm ou mete
yo pral mande w fè.

181
00:07:28,358 --> 00:07:29,020

182
00:07:29,020 --> 00:07:32,590
>> Si ou pa vini nan seksyon, evidamman
Mwen pa ka dwe ki itil nan ou.

183
00:07:32,590 --> 00:07:36,600
Mwen pa pral pran li pèsonèlman si
ou pa vini nan seksyon m 'kounye a,

184
00:07:36,600 --> 00:07:38,570
men definitivman ou ta dwe.

185
00:07:38,570 --> 00:07:40,090
Si ou pa kapab, gade yo sou entènèt.

186
00:07:40,090 --> 00:07:41,230

187
00:07:41,230 --> 00:07:42,519
Yo ap gen pou yon rezon.

188
00:07:42,519 --> 00:07:43,560
Mine yo pral dwa gen.

189
00:07:43,560 --> 00:07:44,187

190
00:07:44,187 --> 00:07:47,270
Kòm ou remake, nou ap ke yo te anrejistre,
se konsa li pral dwe gen dwa gen pou ou guys.

191
00:07:47,270 --> 00:07:49,110

192
00:07:49,110 --> 00:07:51,570
Osi byen, ale nan
lectures-- sa a, se evidamman

193
00:07:51,570 --> 00:07:53,790
kote ou ap vin nan
kòmanse nan materyèl ou isit la.

194
00:07:53,790 --> 00:07:57,430
Se konsa, mwen pral definitivman eseye ak
ede ou kòm anpil jan mwen kapab,

195
00:07:57,430 --> 00:07:58,840
men mwen ka sèlman kontre ou byen lwen tèlman.

196
00:07:58,840 --> 00:08:01,220
Ou gen kalite
jwenn nou mwatye a.

197
00:08:01,220 --> 00:08:04,050
>> Grading-- se konsa, nou tout ki
ki te resevwa yon imèl nan men m ',

198
00:08:04,050 --> 00:08:05,445
ou se seksyon ofisyèl m 'yo.

199
00:08:05,445 --> 00:08:06,470

200
00:08:06,470 --> 00:08:08,120
Mwen yo pral bay nòt psets ou yo.

201
00:08:08,120 --> 00:08:12,870
Apre sa, mwen jis vle di, yon sèl bagay ki
ou ta dwe reyèlman peye atansyon sou

202
00:08:12,870 --> 00:08:13,820
yo se kòmantè yo.

203
00:08:13,820 --> 00:08:17,390
Tout kòmantè se souvan pi plis itil
pase nòt nan aktyèl nou ba ou.

204
00:08:17,390 --> 00:08:19,890
Ak kòmantè yo yo aktyèlman
kote mwen pase anpil nan tan m '

205
00:08:19,890 --> 00:08:20,770
lè mwen se bay nòt.

206
00:08:20,770 --> 00:08:22,700
Se konsa, mwen ta apresye
li si ou li yo.

207
00:08:22,700 --> 00:08:26,990
Apre sa, yo ap aktyèlman ki jan w ap ale
yo aprann plis sou konsepsyon ak style

208
00:08:26,990 --> 00:08:29,860
ak bagay sa yo ki se yon
ti kras koupe pi piti ak sèk.

209
00:08:29,860 --> 00:08:31,770
>> Se konsa, reyèlman peye atansyon
bay moun kòmantè.

210
00:08:31,770 --> 00:08:34,720
Si w gen kesyon sou yo,
oswa kesyon sou nòt ou,

211
00:08:34,720 --> 00:08:37,620
tanpri vini pale ak m '
swa anvan seksyon,

212
00:08:37,620 --> 00:08:41,039
Mwen pral pwobableman ap pandye soti
nan gwoup la, oswa apre sa.

213
00:08:41,039 --> 00:08:43,559
Si ou vle pran randevou pou
yon sèl-on-yon sèl reyinyon sou ki jan

214
00:08:43,559 --> 00:08:46,100
ou ka ede amelyore pita
aparèy televisyon HD pwoblèm, jis kite m 'konnen.

215
00:08:46,100 --> 00:08:47,520

216
00:08:47,520 --> 00:08:49,750
>> Lè sa a, jis yon koup
nan konsèy pou ou guys.

217
00:08:49,750 --> 00:08:53,110
Se konsa, youn nan pi gwo bagay sa yo
Mwen toujou estrès nan seksyon m '

218
00:08:53,110 --> 00:08:57,700
lè w ap aprann kouman kòd se
yo ekri bagay sa yo soti sou papye an premye.

219
00:08:57,700 --> 00:09:01,080
Si ou gen yon plan jwèt pou
ki kote kòd ou a bezwen yo ale

220
00:09:01,080 --> 00:09:03,230
epi ki sa li bezwen
fè ak li a kraze

221
00:09:03,230 --> 00:09:06,000
nan Bits ti kras nan pseudocode
Kòd ou te ekri soti,

222
00:09:06,000 --> 00:09:09,780
w ap ale nan dwe mwens
chans fè erè sentaks

223
00:09:09,780 --> 00:09:12,355
oswa kreye yon si riban ki
pa gen yon lòt bagay.

224
00:09:12,355 --> 00:09:14,064

225
00:09:14,064 --> 00:09:15,980
Si ou konnen ki kote w ap
ale an jeneral, w ap

226
00:09:15,980 --> 00:09:19,764
mwens chans fè sa yo ti
erè ki pral pafwa pran ou

227
00:09:19,764 --> 00:09:22,555
èdtan yo ranje, paske ou se tankou,
kote mwen manke bracket sa a?

228
00:09:22,555 --> 00:09:23,580

229
00:09:23,580 --> 00:09:27,420
>> Sou ki nòt, tanpri itilize style50.

230
00:09:27,420 --> 00:09:28,820

231
00:09:28,820 --> 00:09:31,590
Espesyalman lè w ap
ale nan lè biwo louvri,

232
00:09:31,590 --> 00:09:34,850
si kòd ou a se tout
chanje sou nan yon sèl bò,

233
00:09:34,850 --> 00:09:37,740
li se politik kou
ke nou ka di, fikse li

234
00:09:37,740 --> 00:09:41,990
se konsa ke li sanble style50 di
li ta dwe, ak Lè sa a nou pral ede ou.

235
00:09:41,990 --> 00:09:43,830
Se konsa, li pral fè lavi ou pi fasil.

236
00:09:43,830 --> 00:09:45,030
Li pral fè lavi nou pi fasil.

237
00:09:45,030 --> 00:09:46,000
Tout moun nan pi kontan.

238
00:09:46,000 --> 00:09:47,290
Tout moun vin pi bon klas.

239
00:09:47,290 --> 00:09:48,760
Èske se pa sa nou tout vle a?

240
00:09:48,760 --> 00:09:50,420

241
00:09:50,420 --> 00:09:53,860
>> Se konsa, ekri bagay sa yo soti sou papye anvan
ou te janm manyen òdinatè ou.

242
00:09:53,860 --> 00:09:57,540
Pale bagay sa yo soti nan yon nivo segondè, epi
asire w ke ou konnen ki kote w ap ale.

243
00:09:57,540 --> 00:09:59,940
Epi si w ap fin,
chita ak yon moun

244
00:09:59,940 --> 00:10:03,340
ak mache yo nan etap pa etap
ki sa ki kòd ou a sipoze fè.

245
00:10:03,340 --> 00:10:07,940
Epi nèf fwa soti nan 10, ou pral
tankou, oh, mwen bliye yon si kondisyon

246
00:10:07,940 --> 00:10:12,420
oswa mwen bliye yon virgules isit la oswa
Mwen à mal sa a varyab.

247
00:10:12,420 --> 00:10:15,740
Se konsa, moun yo se konsèy mwen an pou siksè.

248
00:10:15,740 --> 00:10:19,820
>> Se konsa, depi sou mwatye nan ou gade
tankou ou ale super seksyon,

249
00:10:19,820 --> 00:10:24,080
Mwen jis ale trè
yon ti tan ale nan pasan,

250
00:10:24,080 --> 00:10:26,650
ki te pa sou ajanda orijinal nou an.

251
00:10:26,650 --> 00:10:28,190
Men, yo yo se reyèlman enpòtan.

252
00:10:28,190 --> 00:10:30,250
Se konsa, mwen pral kalite
nan vitès nan sa yo

253
00:10:30,250 --> 00:10:32,860
anvan nou jwenn nan seksyon aktyèl nou yo.

254
00:10:32,860 --> 00:10:36,269
Mwen anvan m 'fè sa, ki genyen
nenpòt ki questions-- logistics,

255
00:10:36,269 --> 00:10:38,060
pèsonèlman, ki gen la
nenpòt lòt bagay ou vle

256
00:10:38,060 --> 00:10:40,990
konnen sou m 'oswa sou
seksyon oswa klas an jeneral?

257
00:10:40,990 --> 00:10:43,195

258
00:10:43,195 --> 00:10:43,880
Tout sa ki bon?

259
00:10:43,880 --> 00:10:45,300
OK, fre.

260
00:10:45,300 --> 00:10:46,781

261
00:10:46,781 --> 00:10:47,280
Lovely.

262
00:10:47,280 --> 00:10:50,071
>> Se konsa, ou nèg ta dwe loops-- tout
rekonèt sa yo moso nan grate.

263
00:10:50,071 --> 00:10:51,310

264
00:10:51,310 --> 00:10:55,220
Se konsa, pasan yo se fondamantalman jis
yon fason pou nou fè yon bagay

265
00:10:55,220 --> 00:10:58,900
kèk kantite fwa, kèk repete
aksyon ki baze sou kèk kondisyonèl.

266
00:10:58,900 --> 00:11:00,140

267
00:11:00,140 --> 00:11:02,090
Se konsa, nou gen twa kalite diferan.

268
00:11:02,090 --> 00:11:04,860
Nou gen pou bouk, pandan y ap, epi fè-pandan y ap.

269
00:11:04,860 --> 00:11:06,430

270
00:11:06,430 --> 00:11:11,320
>> Se konsa, pou loops-- nou jis gen yon trè
Layout jeneral isit la nan yon riban pou.

271
00:11:11,320 --> 00:11:16,110
Lè sa a se gwo pou lè ou konnen ki jan
anpil fwa yon bagay bezwen yo egzekite.

272
00:11:16,110 --> 00:11:17,040

273
00:11:17,040 --> 00:11:18,790
Lè nou pale sou la
lòt pasan, ou pral

274
00:11:18,790 --> 00:11:20,650
wè poukisa sa a, se yon distenksyon enpòtan.

275
00:11:20,650 --> 00:11:22,530
Men, pou pasan yo se pou yon bagay ansanm.

276
00:11:22,530 --> 00:11:24,590
Ou konnen ou ka swa
kalkile kantite a

277
00:11:24,590 --> 00:11:29,230
oswa ou konnen ki kantite fwa ou
vle sa a repete nan kòmansman an.

278
00:11:29,230 --> 00:11:32,220
>> Se konsa, si ou wè la a, nou
gen jis yon kalite jeneral

279
00:11:32,220 --> 00:11:34,480
nan fondasyon kilè eskèlèt
pou yon riban pou isit la.

280
00:11:34,480 --> 00:11:38,080
Se konsa, pou-inisyalizasyon, sa a se kote
varyab ou yo inisyalizèd.

281
00:11:38,080 --> 00:11:41,915
Ak Mario, mwen si ke ou nèg te fè
yon bagay tankou int mwen egal 0.

282
00:11:41,915 --> 00:11:42,920

283
00:11:42,920 --> 00:11:44,710
Sa a kote ki ta rive nan ble.

284
00:11:44,710 --> 00:11:48,290
Ou gen eta sante ou, ki
se sa ki tcheke chak fwa.

285
00:11:48,290 --> 00:11:52,410
Si kondisyon sa a se vre, Lè sa a,
rès la nan kòd la ègzekutra.

286
00:11:52,410 --> 00:11:54,749
Lè sa a, li pral kouri again-- epi mande.

287
00:11:54,749 --> 00:11:57,290
Lè sa a, nou gen aktyalizasyon, kote
w ap à varyab ou yo.

288
00:11:57,290 --> 00:12:01,410
Se konsa, ankò, ak tankou Mario, mwen si ke
ou nèg te fè yon bagay tankou mwen plis plis.

289
00:12:01,410 --> 00:12:04,640
Se konsa, chak fwa bouk la
kouri, mwen te resevwa mete ajou konsa

290
00:12:04,640 --> 00:12:09,370
ki lè nou te tcheke li kont
kèk kondisyon, li te chanje.

291
00:12:09,370 --> 00:12:12,570
>> Paske si ou jis
gen yon varyab estatik,

292
00:12:12,570 --> 00:12:15,567
si li ègzekutra premye fwa a, li la
jis ale nan egzekite enfiniman.

293
00:12:15,567 --> 00:12:18,025
Se konsa, ou gen asire w ke ou
aktyalizasyon varyab ou byen.

294
00:12:18,025 --> 00:12:19,350

295
00:12:19,350 --> 00:12:23,890
Apre sa, nou menm tou nou gen jis yon
reprezantasyon vizyèl la.

296
00:12:23,890 --> 00:12:24,930
Tout moun sa ki bon?

297
00:12:24,930 --> 00:12:25,630
Pou pasan.

298
00:12:25,630 --> 00:12:27,540
Ta dwe gen pou wè sa yo nan pset ou yo.

299
00:12:27,540 --> 00:12:28,840
Fre.

300
00:12:28,840 --> 00:12:31,870
>> Se konsa, isit la nan jis yon egzanp fasil.

301
00:12:31,870 --> 00:12:32,860
Enprime Sa a se CS50!

302
00:12:32,860 --> 00:12:33,360
10 fwa.

303
00:12:33,360 --> 00:12:34,850

304
00:12:34,850 --> 00:12:37,906
Se konsa, nou gen inisyalizasyon nou an,
jan nou wè a, ak int mwen

305
00:12:37,906 --> 00:12:41,280
egal 0, pou mwen se mwens
pase 10, ak mwen plis plis.

306
00:12:41,280 --> 00:12:43,090

307
00:12:43,090 --> 00:12:44,540
Epi li pral enprime ki 10 fwa.

308
00:12:44,540 --> 00:12:46,230

309
00:12:46,230 --> 00:12:56,781
>> Se konsa, pandan loops-- pandan y ap pasan yo
gwo lè ou fè pa nesesèman

310
00:12:56,781 --> 00:12:59,530
gen konnen konbyen fwa li nan
pral mete ajou depi nan konmansman an.

311
00:12:59,530 --> 00:13:00,640

312
00:13:00,640 --> 00:13:02,580
Ou jis gen kèk
kondisyon ki nan w tcheke yo.

313
00:13:02,580 --> 00:13:09,550
Lè sa a ta ka yon bagay tankou while--
kite a pran yon egzanp soti nan pset ou yo.

314
00:13:09,550 --> 00:13:12,540
Si Mario, ou eseye
D 'yon chif negatif.

315
00:13:12,540 --> 00:13:13,270
Dwa?

316
00:13:13,270 --> 00:13:15,460
Ou te sipoze
re-rapid itilizatè ou yo.

317
00:13:15,460 --> 00:13:20,890
Se konsa, ou ka di, byen, si entrain yo itilizatè
yon bagay mwens pase zewo, re-èd memwa

318
00:13:20,890 --> 00:13:21,390
yo.

319
00:13:21,390 --> 00:13:23,890
E mwen panse ke ki ta ka gen
te yon bagay ki kèk nan nou

320
00:13:23,890 --> 00:13:24,660
yo itilize nan kòd ou a.

321
00:13:24,660 --> 00:13:26,270
>> Se konsa, li nan yon bagay ki senp.

322
00:13:26,270 --> 00:13:28,490
Ou gen ti tan, kèk
kondisyonèl ki tcheke

323
00:13:28,490 --> 00:13:30,460
chak fwa kòd la ale nan egzekite.

324
00:13:30,460 --> 00:13:32,660
Si li evalye vre, nou kouri li.

325
00:13:32,660 --> 00:13:33,820
Sinon nou pa fè sa.

326
00:13:33,820 --> 00:13:35,650
Ak sa ki nan vrèman
important-- yon bagay mwen

327
00:13:35,650 --> 00:13:38,155
panse ke David te pale osijè de
nan lecture-- yo aparèy òtopedik yo.

328
00:13:38,155 --> 00:13:40,760

329
00:13:40,760 --> 00:13:42,930
Kèlkeswa nan ki nan la
aparèy òtopedik se sa ki egzekite.

330
00:13:42,930 --> 00:13:45,850
Si ou ta bliye moun
aparèy òtopedik, li nan sèlman pral

331
00:13:45,850 --> 00:13:48,800
yo dwe liy lan dirèkteman
apre pandan y ap nan te egzekite.

332
00:13:48,800 --> 00:13:51,040
>> Se konsa, si ou gen twa
bagay sa yo ke yo sipoze

333
00:13:51,040 --> 00:13:54,020
rive lè sa a
kondisyon evalye vre,

334
00:13:54,020 --> 00:13:58,040
epi ou pa gen sa yo aparèy òtopedik, se sèlman
premye bagay la ki pral rive.

335
00:13:58,040 --> 00:14:01,510
Se konsa, dwe pran anpil konpetan nan
kote ou te mete aparèy òtopedik ou yo.

336
00:14:01,510 --> 00:14:04,880
Si ou bwa avèk style50,
sa a pral definitivman ede ou.

337
00:14:04,880 --> 00:14:06,220

338
00:14:06,220 --> 00:14:06,760
Fre.

339
00:14:06,760 --> 00:14:10,835
>> Se konsa, sa a se yon dekont soti nan 10 a zewo.

340
00:14:10,835 --> 00:14:12,380

341
00:14:12,380 --> 00:14:16,210
Ak jan ou wè la a, nou inisyalize
kèk vann san preskripsyon deyò nan li.

342
00:14:16,210 --> 00:14:19,250
Youn nan bagay sa a, se diferan se
nou pa ap inisyalizin varyab nou an

343
00:14:19,250 --> 00:14:20,300
ki nan riban pandan y ap nou an.

344
00:14:20,300 --> 00:14:22,150
Li nan inisyalizèd deyò nan li.

345
00:14:22,150 --> 00:14:25,480
Nou yo se tou senpleman jis mete nan
kondisyon an pou pandan y ap nou an.

346
00:14:25,480 --> 00:14:28,630
Se konsa, nan ka sa a, li la pandan y ap
konte pi gran pase zewo.

347
00:14:28,630 --> 00:14:35,134
E nou enprime soti sa ki konte nou an, se,
ak Lè sa a nou dekrwasans varyab nou an.

348
00:14:35,134 --> 00:14:36,800
Epi sa a, tou yon lòt bagay a yon avi.

349
00:14:36,800 --> 00:14:40,440
Aktyalizasyon nou pa rive nan
ki premye pati nan riban an pandan y ap.

350
00:14:40,440 --> 00:14:44,255
Li pral aktyèlman rive nan
aparèy òtopedik yo, kò a nan tèks ou yo.

351
00:14:44,255 --> 00:14:46,820

352
00:14:46,820 --> 00:14:51,860
>> Se konsa,-pandan y ap loops-- fè-pandan y ap pasan
yo se gwo pou itilizatè validation.

353
00:14:51,860 --> 00:14:54,820
Se konsa, kèk nan ou ta ka genyen
tou yo itilize sa a nan pset ou yo.

354
00:14:54,820 --> 00:14:59,960
Ou ka di, fè, tankou,
mande itilizatè a pou D '.

355
00:14:59,960 --> 00:15:04,690
Lè sa a, pandan y ap, tankou, nan
D 'se mwens pase kèk nimewo.

356
00:15:04,690 --> 00:15:10,700
>> Se konsa, pou yon ka eksplisit ak Mario, li
ta dwe fè printf, antre nan yon nonb antye relatif,

357
00:15:10,700 --> 00:15:13,820
ak Lè sa a kèk nonb antye relatif egal GetInt.

358
00:15:13,820 --> 00:15:17,060
Lè sa a, li pral aktyèlman
egzekite ki kòd premye.

359
00:15:17,060 --> 00:15:19,120
Ou ap gen aktyèlman
kèk sòt de nonb antye relatif.

360
00:15:19,120 --> 00:15:23,380
Lè sa a, ou ta ka di, pandan y ap
ki nonb antye relatif se mwens pase zewo.

361
00:15:23,380 --> 00:15:26,120
Se konsa, sa li a pral fè se li nan
ale nan egzekite omwen yon fwa.

362
00:15:26,120 --> 00:15:27,536
Li nan ale nan tcheke kondisyon an.

363
00:15:27,536 --> 00:15:29,690
Si kondisyon an se
vre, li pral kouri ankò.

364
00:15:29,690 --> 00:15:32,900
>> Se konsa, fè-pandan y ap pasan yo
gwo pou itilizatè validation,

365
00:15:32,900 --> 00:15:36,770
paske ou konnen kòd la
ki pral egzekite omwen

366
00:15:36,770 --> 00:15:39,720
yon fwa, Lè nou konsidere ke ak
pandan y ap pasan, ou pa ap

367
00:15:39,720 --> 00:15:41,630
garanti ke li nan
ale nan egzekite yon fwa.

368
00:15:41,630 --> 00:15:45,330
Li nan ale nan tcheke kondisyon an
premye ak Lè sa a, deside egzekite li,

369
00:15:45,330 --> 00:15:48,350
pandan y ap yon fè-pandan y ap
egzekite kòd la premye

370
00:15:48,350 --> 00:15:51,110
ak Lè sa a tcheke yo wè si wi ou non
ou bezwen repete l '.

371
00:15:51,110 --> 00:15:52,985
Èske sa distenksyon
fè sans a tout moun?

372
00:15:52,985 --> 00:15:53,680

373
00:15:53,680 --> 00:15:54,180
OK.

374
00:15:54,180 --> 00:15:55,651

375
00:15:55,651 --> 00:15:56,150
Fre.

376
00:15:56,150 --> 00:15:57,380

377
00:15:57,380 --> 00:15:59,800
>> Se konsa, nan ka sa a, sa a se kalite
nan sa m 'te pale sou,

378
00:15:59,800 --> 00:16:02,210
sa a re-envit jiskaske ou
jwenn yon nimewo ki pozitif.

379
00:16:02,210 --> 00:16:05,060
Se konsa, nou konnen ke printf
"Antre nan yon chif pozitif"

380
00:16:05,060 --> 00:16:08,720
ak aktyèlman mande pou ki
D 'pral rive omwen yon fwa.

381
00:16:08,720 --> 00:16:12,650
Si itilizatè a se sa ki mal ak kenbe
k ap antre nan yon chif negatif, ki moun ki

382
00:16:12,650 --> 00:16:14,210
konnen ki jan anpil fwa li pral egzekite.

383
00:16:14,210 --> 00:16:17,500
Men, se sa a kòd garanti
al touye omwen yon fwa.

384
00:16:17,500 --> 00:16:20,040
Ak Se poutèt sa li nan gwo
pou validation opinyon.

385
00:16:20,040 --> 00:16:22,300
Epi w ap sèvi ak sa byen yon ti jan.

386
00:16:22,300 --> 00:16:23,870

387
00:16:23,870 --> 00:16:25,830
>> Tout dwa, nenpòt kesyon byen lwen tèlman?

388
00:16:25,830 --> 00:16:27,080

389
00:16:27,080 --> 00:16:28,030
Nou tout se bon?

390
00:16:28,030 --> 00:16:29,513
Èske mwen pale twò vit?

391
00:16:29,513 --> 00:16:30,520

392
00:16:30,520 --> 00:16:31,130
Nou bon?

393
00:16:31,130 --> 00:16:31,630
OK.

394
00:16:31,630 --> 00:16:32,960

395
00:16:32,960 --> 00:16:33,800
Awesome

396
00:16:33,800 --> 00:16:35,841
>> Se konsa, nou ap ale nan ale pi devan
epi pale sou ranje.

397
00:16:35,841 --> 00:16:36,660

398
00:16:36,660 --> 00:16:37,600
Fre.

399
00:16:37,600 --> 00:16:40,700
Se konsa, ranje yo fondamantalman
jis estrikti done

400
00:16:40,700 --> 00:16:43,260
ki pèmèt nou nan magazen
bagay sa yo nan kalite la menm.

401
00:16:43,260 --> 00:16:47,920
Se konsa, si ou te janm gen yon etalaj, li nan
swa jis ale nan gen antye

402
00:16:47,920 --> 00:16:51,590
oswa li jis ale nan gen flote
oswa li jis ale nan gen charaktèr.

403
00:16:51,590 --> 00:16:55,440
Ou pa ap ale nan gen yon int ak
yon Char ak yon flote ak yon doub.

404
00:16:55,440 --> 00:16:56,850
Youn nan bagay.

405
00:16:56,850 --> 00:17:00,810
Matris yo se jis yon sèl gwosè,
oswa yo ap jis yon sèl kalite.

406
00:17:00,810 --> 00:17:05,679
>> Se konsa, isit la nou gen yon etalaj de gwosè
twa ak twa nonm antye relatif nan li.

407
00:17:05,679 --> 00:17:07,970
Yo te kapab flote, men nou ap
pral di antye yo ap.

408
00:17:07,970 --> 00:17:09,310

409
00:17:09,310 --> 00:17:16,970
Se konsa, yon sèl bagay yo reyalize se ke ranje
se yon gwosè seri lè ou inisyalize

410
00:17:16,970 --> 00:17:22,285
yo, epi yo pa yo easily--
depi ou tout yo gen mwens konfòtab,

411
00:17:22,285 --> 00:17:25,034
ou ta dwe jis panse a yo kòm
pa te kapab pou yon ekstansyon pou nan gwosè.

412
00:17:25,034 --> 00:17:26,119

413
00:17:26,119 --> 00:17:28,740
Sepandan gwo ou mete deyò
etalaj ou nan kòmansman an,

414
00:17:28,740 --> 00:17:31,070
sa a, se gwosè a li a pral
yo rete, paske ranje

415
00:17:31,070 --> 00:17:33,070
yo se blòk kontinyèl nan memwa.

416
00:17:33,070 --> 00:17:34,007

417
00:17:34,007 --> 00:17:35,840
Men, lè ou nèg jwenn
nan yon ti jan ti kras pi plis

418
00:17:35,840 --> 00:17:40,820
nan ki jan nan memwa aktyèlman mete deyò sou
disk ak nan pil wòch la ak chemine a,

419
00:17:40,820 --> 00:17:42,220
li pral fè yon ti kras pi plis sans.

420
00:17:42,220 --> 00:17:48,310
>> Men, ou ta ka jis panse a tankou, li la
jis yon ranje nan espas sou ki gen kapasite ou.

421
00:17:48,310 --> 00:17:52,540
Epi ou pa ka garanti ke gen nan
pral fè espas gratis apre li.

422
00:17:52,540 --> 00:17:55,290
Ou te kapab inisyalize yon etalaj
nan twa ak Lè sa a petèt ou

423
00:17:55,290 --> 00:17:59,190
inisyalize yon lòt etalaj nan senk
pita, ak li a dwa apre sa.

424
00:17:59,190 --> 00:18:04,000
Se konsa, si ou te ale plas sot pase yo
twa nan ke premye etalaj,

425
00:18:04,000 --> 00:18:06,370
ou ta dwe ekri
sou yon lòt bagay.

426
00:18:06,370 --> 00:18:10,390
Se konsa, ranje are-- pou ou nèg, jis
panse a yo kòm yon gwosè fiks yo.

427
00:18:10,390 --> 00:18:12,700

428
00:18:12,700 --> 00:18:16,890
>> Se konsa, kreye yon array-- w ap ale
bezwen fè sa byen yon ti jan.

429
00:18:16,890 --> 00:18:18,240

430
00:18:18,240 --> 00:18:22,080
Se konsa, nan menm fason an ke nou gen yon
estrikti jeneral pou nou an pou pasan,

431
00:18:22,080 --> 00:18:24,910
nou gen yon jeneral bèl
estrikti pou etalaj nou an.

432
00:18:24,910 --> 00:18:28,430
Yo paske yo te nan yon sèl kalite, tout nan
eleman nan yon etalaj se nan yon sèl kalite,

433
00:18:28,430 --> 00:18:30,950
ou bezwen inisyalize
ki sa sa di ki kalite se.

434
00:18:30,950 --> 00:18:33,804
>> Se konsa, jan ou wè la a, nou gen yon
bèl ti done bracket kalite.

435
00:18:33,804 --> 00:18:35,970
Se konsa, si nou ap kreye yon int
etalaj, ki pral Int.

436
00:18:35,970 --> 00:18:38,830
Si nou ap kreye yon Char
etalaj, li pral Char.

437
00:18:38,830 --> 00:18:41,890
Si nou ap kreye yon fisèl
etalaj, li pral fisèl.

438
00:18:41,890 --> 00:18:45,140
Lè sa a, non an nan etalaj ou a,
tou sa ou ta renmen li nan dwe.

439
00:18:45,140 --> 00:18:51,750
Se konsa, petèt li nan nòt egzamen oswa petèt
li nan elèv oswa petèt li nan sirèt.

440
00:18:51,750 --> 00:18:54,440
Kèlkeswa sa ou deside nan non ou
etalaj, se sa ki li pral.

441
00:18:54,440 --> 00:18:57,260
>> Lè sa a, nan parantèz, ou pral
gen gwosè a ke ou vle.

442
00:18:57,260 --> 00:19:01,350
Se konsa, yo se nou estoke 10 elèv oswa
yo nou estoke 15 kalite sirèt?

443
00:19:01,350 --> 00:19:03,200

444
00:19:03,200 --> 00:19:03,920
Ki sa ki pa.

445
00:19:03,920 --> 00:19:06,830
Se konsa, nan egzanp nou an isit la,
nou ap kreye yon etalaj

446
00:19:06,830 --> 00:19:10,100
nan gwosè twa, ki ou nèg
wè dwa isit la sou bò dwat la.

447
00:19:10,100 --> 00:19:11,350

448
00:19:11,350 --> 00:19:15,990
Men, lè nou premye inisyalize
li, tout bagay se mete a zewo.

449
00:19:15,990 --> 00:19:18,970
Se konsa, li jis te panse
de tankou yon adwaz vid.

450
00:19:18,970 --> 00:19:22,550
Nou gen tout espas sa yo, nou gen tout
bwat sa yo nou te kapab mete done nou an nan,

451
00:19:22,550 --> 00:19:25,530
men yo ap jis vid
pou tan an ke yo te.

452
00:19:25,530 --> 00:19:28,700
>> Se konsa, si nou vle aktyèlman
plase yo valè sa yo,

453
00:19:28,700 --> 00:19:33,050
nou fè sa kòm dwa anba isit la montre.

454
00:19:33,050 --> 00:19:39,170
Se konsa, ou gen tou sa non an nan ou
etalaj se ak Lè sa a sa ki endèks ou vle.

455
00:19:39,170 --> 00:19:43,070
Se konsa, endèks la jis refere a,
tankou, ki sa plas nou ap chèche a.

456
00:19:43,070 --> 00:19:47,830
Ak yon bagay enpòtan a yon avi
se ke ranje yo zewo-Catalogue.

457
00:19:47,830 --> 00:19:53,160
Se konsa, si nou vle espas nan premye nan memwa
nan etalaj nou an, li nan pral fè zewo.

458
00:19:53,160 --> 00:19:54,740
Si nou vle dezyèm lan, li pral fè yon sèl.

459
00:19:54,740 --> 00:19:56,198
Si nou vle twazyèm lan, li pral de.

460
00:19:56,198 --> 00:19:57,820
Se konsa, sou ak pou fè.

461
00:19:57,820 --> 00:20:02,130
>> Ki se tou poukisa, konvansyonèl,
lè nou fè pou loops-- mwen si ke

462
00:20:02,130 --> 00:20:05,030
ou nèg te mande, poukisa
nou kòmanse nan 0 kont 1?

463
00:20:05,030 --> 00:20:09,909
Epi sa a, paske lè nou tranzisyon
nan lè l sèvi avèk ranje, li kat kòrèkteman.

464
00:20:09,909 --> 00:20:11,700
Se konsa, si ou vle
repekte nan yon etalaj, li

465
00:20:11,700 --> 00:20:14,830
fè yon anpil plis sans nan
fè mwen egal 0, paske nou

466
00:20:14,830 --> 00:20:17,940
konnen ki pral koresponn
nan plas la an premye nan memwa.

467
00:20:17,940 --> 00:20:18,990

468
00:20:18,990 --> 00:20:19,990
Tout moun bon ak sa?

469
00:20:19,990 --> 00:20:21,060

470
00:20:21,060 --> 00:20:21,560
Fre.

471
00:20:21,560 --> 00:20:26,240
>> Lè sa a, sou anba a isit la se jis
yon lòt fason yo inisyalize yon etalaj.

472
00:20:26,240 --> 00:20:29,590
Ou toujou gen ou
kalite done ak non an,

473
00:20:29,590 --> 00:20:31,960
men olye pou yo aktyèlman
mete yon gwosè nan la,

474
00:20:31,960 --> 00:20:33,830
ou ka jis fè parantèz vid.

475
00:20:33,830 --> 00:20:36,350
Lè sa a, ak sa yo Curly
aparèy òtopedik nan pati anba a,

476
00:20:36,350 --> 00:20:40,270
ou ka jis opinyon done yo ki
ou vle separe pa vigil.

477
00:20:40,270 --> 00:20:43,070
Epi sa pral otomatikman
di, OK, mwen wè

478
00:20:43,070 --> 00:20:47,300
ke ou gen twa
bagay sa yo nan aparèy òtopedik sa yo.

479
00:20:47,300 --> 00:20:51,410
Se konsa, mwen konnen se mwen bezwen asiyen twa
blòk nan memwa ak Lè sa a, magazen sa yo.

480
00:20:51,410 --> 00:20:55,300

481
00:20:55,300 --> 00:21:01,670
>> Se konsa, vèsyon an premye ou ta ka itilize
si w ap mande itilizatè ou nan D '

482
00:21:01,670 --> 00:21:04,770
valè pou ke ou ka
repekte nan etalaj la

483
00:21:04,770 --> 00:21:07,660
ak ask-- jwenn kèk Int D 'yo.

484
00:21:07,660 --> 00:21:10,500
Si ou konnen valè yo davans,
li fè yon anpil plis sans

485
00:21:10,500 --> 00:21:12,110
yo sèvi ak fason, dezyèm lan.

486
00:21:12,110 --> 00:21:17,270
Men, nan pifò ka, ou pa ta ka konnen
sa valè sa yo yo pral yo dwe.

487
00:21:17,270 --> 00:21:19,060

488
00:21:19,060 --> 00:21:19,560
Fre.

489
00:21:19,560 --> 00:21:20,393
Nenpòt lòt kesyon?

490
00:21:20,393 --> 00:21:21,206

491
00:21:21,206 --> 00:21:21,705
Byen.

492
00:21:21,705 --> 00:21:25,960

493
00:21:25,960 --> 00:21:30,370
>> Se konsa, gen aksè nan elements-- se konsa yon sèl
nan bagay ki gwo sou ranje

494
00:21:30,370 --> 00:21:33,310
se yo ke yo yo se o aza
aksè, sa vle di ou

495
00:21:33,310 --> 00:21:36,010
pa gen gade nan chak blòk.

496
00:21:36,010 --> 00:21:38,150
Si ou konnen ke ou
vle sa ki nan nan blòk de,

497
00:21:38,150 --> 00:21:40,820
ou ka jis di, ban m 'bloke de.

498
00:21:40,820 --> 00:21:44,160
Epi sa a, poukisa sa yo
endis yo, se pou enpòtan,

499
00:21:44,160 --> 00:21:46,220
e ke sa a ki jan nou aktyèlman jwenn aksè nan yo.

500
00:21:46,220 --> 00:21:50,660
Se konsa, nan ka sa a, kòm nou te wè anvan lè
nou te plase valè, nan yon sèl nan

501
00:21:50,660 --> 00:21:55,360
anvan, nou te gen non ak nan
endèks nou te vle aksè, dwa?

502
00:21:55,360 --> 00:21:59,370
Se konsa, nan menm fason an, ki nan tout sa nou
fè yo aktyèlman rale ke soti done.

503
00:21:59,370 --> 00:22:02,940
Nou gen non an ak nou
gen endèks la ke nou vle.

504
00:22:02,940 --> 00:22:06,710
>> Se konsa, nan ka sa a, pou nan bouk
desann isit la nan pati anba a, nenpòt moun

505
00:22:06,710 --> 00:22:09,060
konnen ki sa li ap fè,
ki sa li ta enprime soti?

506
00:22:09,060 --> 00:22:13,771

507
00:22:13,771 --> 00:22:14,270
Mmhmm?

508
00:22:14,270 --> 00:22:17,790

509
00:22:17,790 --> 00:22:18,520
Egzakteman.

510
00:22:18,520 --> 00:22:20,130
Se konsa, yeah, li jis iteration nan.

511
00:22:20,130 --> 00:22:23,410
mwen ki egal a zero-- nou ka mache
nan kòd la jis byen vit.

512
00:22:23,410 --> 00:22:26,680
mwen ki egal a zewo, mwen se mwens
pase twa nan pwen sa a, dwa?

513
00:22:26,680 --> 00:22:27,780
Se konsa, ki chèk soti.

514
00:22:27,780 --> 00:22:33,370
Epi nou di, OK, ekri ak lèt ​​detache f
tou sa se nan tanperati mwen.

515
00:22:33,370 --> 00:22:37,990
mwen se zewo dwa isit la lè nou premye
repekte, se konsa nou ale nan premye plas sa a,

516
00:22:37,990 --> 00:22:40,840
epi nou di, OK, 65 se nan
Nimewo nou vle enprime soti.

517
00:22:40,840 --> 00:22:43,570
Se konsa, li pral enprime soti 65
ak Lè sa a fè yon liy nouvo.

518
00:22:43,570 --> 00:22:46,550
mwen pral mete ajou, se konsa li simagri 87.

519
00:22:46,550 --> 00:22:48,780
Li dènye nouvèl ankò, epi li pral enprime 30.

520
00:22:48,780 --> 00:22:49,810

521
00:22:49,810 --> 00:22:50,630
Tout moun fre?

522
00:22:50,630 --> 00:22:51,630

523
00:22:51,630 --> 00:22:52,130
Awesome.

524
00:22:52,130 --> 00:22:54,340

525
00:22:54,340 --> 00:22:54,840
>> Tout dwa.

526
00:22:54,840 --> 00:22:57,710
Se konsa, isit la nan yon sèl kalite
Bagay mwen te di ki jan

527
00:22:57,710 --> 00:23:00,020
ou ka kenbe tras nan
nòt yon moun nan e poukisa

528
00:23:00,020 --> 00:23:03,300
ou ta itilize premye a
fason pou inisyalizin li

529
00:23:03,300 --> 00:23:04,890
olye pou yo ke dezyèm fason.

530
00:23:04,890 --> 00:23:06,620
Lè sa a jis ale nan.

531
00:23:06,620 --> 00:23:08,945
Ak Avi nou gen yon gwosè klas nan 30.

532
00:23:08,945 --> 00:23:10,690

533
00:23:10,690 --> 00:23:15,770
Epi nou ap inisyalizin sa a
etalaj de antye se sa ki nan gwosè 30.

534
00:23:15,770 --> 00:23:18,070
Lè sa a, nou ap iteration
a epi nou ap

535
00:23:18,070 --> 00:23:20,910
mande itilizatè a D '
nòt pou chak nan sa yo

536
00:23:20,910 --> 00:23:23,700
ak Lè sa a plase li nan
yon kote espesifik nan memwa

537
00:23:23,700 --> 00:23:24,860
yon kote nan ki etalaj.

538
00:23:24,860 --> 00:23:26,700

539
00:23:26,700 --> 00:23:27,890
Cool?

540
00:23:27,890 --> 00:23:29,650
ki fè sans a tout moun?

541
00:23:29,650 --> 00:23:30,150
Mmhmm?

542
00:23:30,150 --> 00:23:32,910

543
00:23:32,910 --> 00:23:40,360
>> Se konsa, hashtag defini gwosè klas
30 se yon direktiv preproseseur,

544
00:23:40,360 --> 00:23:43,780
ki jis vle di li gets-- li gen
fè tankou pwosesis la élaboration.

545
00:23:43,780 --> 00:23:47,595
Ou ka panse a li
kòm yon varyab mondyal.

546
00:23:47,595 --> 00:23:49,260

547
00:23:49,260 --> 00:23:53,030
Fason nou fè li se
typically-- li pèmèt kòd ou a

548
00:23:53,030 --> 00:23:54,770
yo dwe pi fasil chanje.

549
00:23:54,770 --> 00:23:59,480
Se konsa, kite a di ke gwosè klas nou an
toudenkou ale soti nan 30 a 15,

550
00:23:59,480 --> 00:24:03,930
si mwen pa t 'defini li fason sa a, mwen ta
gen yo ale nan pwogram mwen an tout antye

551
00:24:03,930 --> 00:24:07,420
ak chanje chak egzanp nan 30 a 15.

552
00:24:07,420 --> 00:24:11,590
Men, ak sa a, mwen jwenn yo chanje yon sèl
plas, ak tout bagay chanjman lòt bagay.

553
00:24:11,590 --> 00:24:14,930
>> Si ou janm vle fè
yon regle defini nan yon ka

554
00:24:14,930 --> 00:24:19,020
kote w ap kenbe tras nan kèk
mete nimewo nan nòt pou yon klas

555
00:24:19,020 --> 00:24:23,250
oswa w ap lè l sèvi avèk yon nimewo
ke yo pral itilize, tankou,

556
00:24:23,250 --> 00:24:27,740
nan tout yon pwogram trè long, li nan
pi bon yo defini ke nan kòmansman an

557
00:24:27,740 --> 00:24:34,440
se konsa ke si tout tan tout tan li chanje, ou jwenn
chanje yon sèl plas olye pou yo 100.

558
00:24:34,440 --> 00:24:34,940
Wi?

559
00:24:34,940 --> 00:24:39,830
>> ELÈV: Ant fè sa ak jis
deklare [fèbl] sou nan tèt la.

560
00:24:39,830 --> 00:24:42,470
>> ALLISON BUCHHOLTZ-AU: Se konsa, li
te fè ak efficient--

561
00:24:42,470 --> 00:24:45,460
li nan kalite deyò sijè ki abòde lan
ki sa nou ka kouvri nan seksyon sa a.

562
00:24:45,460 --> 00:24:49,236
Li te gen fè plis ak efikasite
ak ki jan bagay sa yo aktyèlman

563
00:24:49,236 --> 00:24:50,485
travay nan pwosesis la élaboration.

564
00:24:50,485 --> 00:24:52,590

565
00:24:52,590 --> 00:24:55,006
Si ou vle vrèman konnen
sou li, mwen se kè kontan yo voye ba ou

566
00:24:55,006 --> 00:24:56,450
yon imel ak resous sou li.

567
00:24:56,450 --> 00:24:57,810

568
00:24:57,810 --> 00:25:03,880
Hash defini gen tandans ka
pi pito pou bagay sa yo.

569
00:25:03,880 --> 00:25:06,380
Epi kòm ou kòd plis, ou
kalite aprann nuans yo

570
00:25:06,380 --> 00:25:09,135
a lè ou ta dwe sèvi ak yon
mondyal kont regle la defini.

571
00:25:09,135 --> 00:25:11,010
Men, pou tan an ke yo te,
ou pa vrèman gen

572
00:25:11,010 --> 00:25:13,290
enkyete sou li se
ke repons lan kout.

573
00:25:13,290 --> 00:25:15,360

574
00:25:15,360 --> 00:25:16,360
Tout moun bon ak sa?

575
00:25:16,360 --> 00:25:18,151
Epi tou, si ou vle
yo sèvi ak yon regle defini,

576
00:25:18,151 --> 00:25:21,120
li vrèman enpòtan a yon avi
ke non a yo ta dwe nan tout kapsil.

577
00:25:21,120 --> 00:25:22,210

578
00:25:22,210 --> 00:25:24,674
Nou pa jis ap fè
SIZE KLAS yo dwe dramatik.

579
00:25:24,674 --> 00:25:26,090
Li ta aktyèlman ap nan tout kapsil.

580
00:25:26,090 --> 00:25:27,880

581
00:25:27,880 --> 00:25:28,610
Fre.

582
00:25:28,610 --> 00:25:30,130
Nenpòt lòt bagay la?

583
00:25:30,130 --> 00:25:31,190
Nou bon?

584
00:25:31,190 --> 00:25:32,220
Lovely.

585
00:25:32,220 --> 00:25:32,720
Byenveni.

586
00:25:32,720 --> 00:25:34,240

587
00:25:34,240 --> 00:25:38,495
>> OK, se konsa mwen vle ou nèg pran yon gade
nan nivo sa a ak wè si ou ka jwenn pinèz la.

588
00:25:38,495 --> 00:25:45,580

589
00:25:45,580 --> 00:25:46,507
Mwen pral ba w yon allusion.

590
00:25:46,507 --> 00:25:47,840
Li nan yon kote nan ke pou-bouk.

591
00:25:47,840 --> 00:25:53,070

592
00:25:53,070 --> 00:25:53,665
Mmhmm?

593
00:25:53,665 --> 00:25:55,704
>> ELÈV: Yo ta dwe mwens pase egal a 2.

594
00:25:55,704 --> 00:25:56,920

595
00:25:56,920 --> 00:26:01,094
>> ALLISON: Se konsa, li te kapab fè mwens pase oswa
egal a 2, oswa li te kapab fè mwens pase 3.

596
00:26:01,094 --> 00:26:02,510
Ak sa ki nan rezònman an pou sa?

597
00:26:02,510 --> 00:26:05,135
>> ELÈV: [fèbl a], 0, 1, 2.

598
00:26:05,135 --> 00:26:06,080
>> ALLISON: Egzakteman.

599
00:26:06,080 --> 00:26:12,180
Se konsa, nan yon etalaj de gwosè n, nou
sèlman gen endis nan n mwens 1.

600
00:26:12,180 --> 00:26:13,700

601
00:26:13,700 --> 00:26:14,200
Fre.

602
00:26:14,200 --> 00:26:15,091

603
00:26:15,091 --> 00:26:17,840
Lè sa a, nou ka jwenn vrèman fou
epi pou yo jwenn ranje milti-dimansyon.

604
00:26:17,840 --> 00:26:19,340

605
00:26:19,340 --> 00:26:23,960
Youn nan pwoblèm yo lè m 'pran l' nan m '
ane egzije ranje milti-dimansyon,

606
00:26:23,960 --> 00:26:28,720
e mwen panse youn nan yo ta ka mande pou
li ane sa a, se konsa dwe konfòtab.

607
00:26:28,720 --> 00:26:30,140
Vlope tèt ou bò kote l 'kounye a.

608
00:26:30,140 --> 00:26:33,087
Tounen Li ap vin nan ante
ou, men nan yon fason fre.

609
00:26:33,087 --> 00:26:35,420
Se konsa, ou ka vrèman jis panse
nan ranje milti-dimansyon

610
00:26:35,420 --> 00:26:36,870
kòm ranje nan ranje.

611
00:26:36,870 --> 00:26:38,060

612
00:26:38,060 --> 00:26:43,809
Se konsa, ou ka kalite panse a tèt sa a
ranje kòm moso nan premye nan memwa.

613
00:26:43,809 --> 00:26:45,600
Lè sa a se yon sèl la
dezyèm ti moso nan memwa,

614
00:26:45,600 --> 00:26:47,570
ak dènye ranje a se nan
twazyèm ti moso nan memwa.

615
00:26:47,570 --> 00:26:50,740
E nan lespas de sa, gen nan yon etalaj.

616
00:26:50,740 --> 00:26:53,250
Men, nan kou, li pi fasil
dekri tankou sa a.

617
00:26:53,250 --> 00:26:55,610
>> Se konsa, ou inisyalize li menm jan an.

618
00:26:55,610 --> 00:26:57,290

619
00:26:57,290 --> 00:27:01,610
Sa a se yon karaktè
tablo nan twa pa twa.

620
00:27:01,610 --> 00:27:04,180
Se konsa, ou gen twa ranje
ak twa kolòn.

621
00:27:04,180 --> 00:27:06,760
Nou ap reprezante li nan fason sa.

622
00:27:06,760 --> 00:27:11,800
Epi ou ta gen aksè a li nan
menm jan, kolòn pa ranje.

623
00:27:11,800 --> 00:27:14,840
Se konsa, 1,1 jan nou wè isit la.

624
00:27:14,840 --> 00:27:18,730
Nou bay yon zewo, zewo moute a.

625
00:27:18,730 --> 00:27:21,900
2,0 0,2 ak.

626
00:27:21,900 --> 00:27:26,900
Se konsa, ou ta jis jwenn aksè them-- si
nenpòt moun ki nan janm fè aljèb lineyè,

627
00:27:26,900 --> 00:27:31,580
menm fason an ou gen aksè yon eleman nan
yon matris, li nan lide a menm isit la.

628
00:27:31,580 --> 00:27:33,030
Se konsa, ou ka gen rapò l 'tounen nan matematik.

629
00:27:33,030 --> 00:27:34,130

630
00:27:34,130 --> 00:27:36,380
Ou pa gen enkyete twò
anpil sou sa a kounye a.

631
00:27:36,380 --> 00:27:38,671
Li nan bon gen ekspoze,
konnen ke ou ka fè li.

632
00:27:38,671 --> 00:27:42,700
Ou ka kreye kèk
fou number-- ou kapab

633
00:27:42,700 --> 00:27:44,750
kreye ranje fou se
tout mwen pral di yo.

634
00:27:44,750 --> 00:27:45,250
[Fèbl]

635
00:27:45,250 --> 00:27:46,585

636
00:27:46,585 --> 00:27:48,460
Li vin yon ti kras fou,
men li la vrèman fre.

637
00:27:48,460 --> 00:27:50,020

638
00:27:50,020 --> 00:27:50,670
Awesome.

639
00:27:50,670 --> 00:27:52,550
>> Lè sa a,, konsa nou gen yon egzanp isit la.

640
00:27:52,550 --> 00:27:54,165
Li kalkile yon longè fisèl.

641
00:27:54,165 --> 00:27:55,210

642
00:27:55,210 --> 00:27:59,670
Se konsa, ki jan anpil moun te konnen ke
strings yo ke w ap lè l sèvi avèk

643
00:27:59,670 --> 00:28:01,265
yo se jis ranje nan karaktè?

644
00:28:01,265 --> 00:28:03,670

645
00:28:03,670 --> 00:28:04,655
OK, yeah.

646
00:28:04,655 --> 00:28:08,000
Se konsa, ou nèg ka panse ke ou pa gen
itilize ranje anvan, men nenpòt ki lè

647
00:28:08,000 --> 00:28:10,740
ou itilize getstring nan la
CSView bibliyotèk, w ap

648
00:28:10,740 --> 00:28:14,690
aktyèlman jis mande pou
yon etalaj de karaktè.

649
00:28:14,690 --> 00:28:17,450
Epi nou ap pran swen nan tout
ke nan do ki fin an pou ou.

650
00:28:17,450 --> 00:28:20,184
Men, ou te lè l sèvi avèk
ranje depi ou te kòmanse.

651
00:28:20,184 --> 00:28:21,350
Ou jis pa t 'konnen li ankò.

652
00:28:21,350 --> 00:28:22,420

653
00:28:22,420 --> 00:28:28,390
>> Chak fwa ou gen yon etalaj karaktè
oswa yon etalaj ki nan estoke yon fisèl,

654
00:28:28,390 --> 00:28:32,050
bagay la pase se toujou sa ki nan
rele yon nil Terminator, ki

655
00:28:32,050 --> 00:28:33,830
se sa a dwa isit la.

656
00:28:33,830 --> 00:28:37,300
E ke se nan fen
tout pawòl ki w ap estoke.

657
00:28:37,300 --> 00:28:41,170
Se konsa, si nou vle konnen nan soti
longè yon fisèl, nou ka di,

658
00:28:41,170 --> 00:28:45,320
byen, ou konnen, nan
sa nan ke blòk

659
00:28:45,320 --> 00:28:46,867
se pa egal a Terminator nil nou an.

660
00:28:46,867 --> 00:28:49,450
Sa vle di ke gen kèk
N. gen ke nou aktyèlman

661
00:28:49,450 --> 00:28:51,540
pran swen sou sa a, se yon pati nan mo a.

662
00:28:51,540 --> 00:28:52,665
Ou ogmante longè ou yo.

663
00:28:52,665 --> 00:28:55,540
Lè sa a, lè nou aktyèlman jwenn
fen a nan pawòl Bondye a, li pral mete fen nan

664
00:28:55,540 --> 00:28:58,790
epi li pral retounen longè nou an pou nou.

665
00:28:58,790 --> 00:29:00,098
Mmhmm?

666
00:29:00,098 --> 00:29:02,906
>> ELÈV: Èske espas ki la
konte kòm Terminator a nil?

667
00:29:02,906 --> 00:29:04,780
ALLISON: Se konsa, yon espas se
pa yon Terminator nil.

668
00:29:04,780 --> 00:29:10,590
Se konsa, si ou gen yon espas multiple--
se aktyèlman yon valè ASCII espesifik.

669
00:29:10,590 --> 00:29:11,719

670
00:29:11,719 --> 00:29:13,552
ELÈV: Ki sa ki nan nan
esklamasyon egal ankò?

671
00:29:13,552 --> 00:29:17,080
ALLISON: Se konsa, sa a se ki sa ou, al gade nan.

672
00:29:17,080 --> 00:29:21,220
Si ou janm tande m 'nan lè biwo louvri,
Mwen toujou rele l ', tankou, Bang egal.

673
00:29:21,220 --> 00:29:23,520
Se konsa, bang se pa.

674
00:29:23,520 --> 00:29:25,370
Se konsa, sa a se pa egal.

675
00:29:25,370 --> 00:29:28,480

676
00:29:28,480 --> 00:29:32,290
Se konsa, si w ap eseye
wè si gen yon bagay nan fo,

677
00:29:32,290 --> 00:29:35,915
ou konnen toujou fè, tou sa Bang
varyab la se, ak si li nan fo,

678
00:29:35,915 --> 00:29:38,540
li evalye vre epi ou
ka fè fre bagay ak sa.

679
00:29:38,540 --> 00:29:39,830

680
00:29:39,830 --> 00:29:40,675
Plis sou sa pita.

681
00:29:40,675 --> 00:29:42,090

682
00:29:42,090 --> 00:29:42,590
Fre.

683
00:29:42,590 --> 00:29:44,260
Tout bon a?

684
00:29:44,260 --> 00:29:44,760
Awesome.

685
00:29:44,760 --> 00:29:48,045
>> Se konsa, kounye a li lè mesye ou a
travay, depi mwen te pale.

686
00:29:48,045 --> 00:29:49,220

687
00:29:49,220 --> 00:29:53,200
Se konsa, mwen vle nou jis kreye yon etalaj
ak nonm antye relatif yo yonn, de, ak twa,

688
00:29:53,200 --> 00:29:54,660
ak Lè sa a fè yo enprime deyò.

689
00:29:54,660 --> 00:29:58,050
Ou pa bezwen fè, tankou,
prensipal yo, bla, bla, bla, kèlkeswa sa.

690
00:29:58,050 --> 00:30:00,840
Mwen jis vle ou a inisyalize
etalaj la ak Lè sa a kreye

691
00:30:00,840 --> 00:30:04,790
yon riban pou ekri ak lèt ​​detache yo out--
oswa yon riban pandan y ap, moute nan ou.

692
00:30:04,790 --> 00:30:07,600
>> Mwen pral jis ba ou yon koup
minit nan travay sou sa.

693
00:30:07,600 --> 00:30:09,320
Mwen pral pran yon ti repo vwa mwen.

694
00:30:09,320 --> 00:30:13,290
Si w gen nenpòt kesyon, Mwen kontan
vini alantou epi pale ak ou guys.

695
00:30:13,290 --> 00:30:15,290
Santi yo lib yo pale youn ak lòt.

696
00:30:15,290 --> 00:30:16,125
Jwenn plis sirèt.

697
00:30:16,125 --> 00:30:17,181

698
00:30:17,181 --> 00:30:18,930
An reyalite, mwen pral jis
mache otou ak sirèt.

699
00:30:18,930 --> 00:30:19,600
Ki jan nan sa?

700
00:30:19,600 --> 00:30:22,974

701
00:30:22,974 --> 00:30:23,938
>> ou vle nenpòt ki?

702
00:30:23,938 --> 00:30:34,703

703
00:30:34,703 --> 00:30:36,675
Nenpòt lòt moun nan sal sa a vle sirèt?

704
00:30:36,675 --> 00:30:47,030

705
00:30:47,030 --> 00:30:49,206
Ou kapab tou pran plis pase yon sèl, guys.

706
00:30:49,206 --> 00:30:50,330
Pran yon ti ponyen si ou vle.

707
00:30:50,330 --> 00:30:52,690

708
00:30:52,690 --> 00:30:53,190
Me osi byen.

709
00:30:53,190 --> 00:30:54,929

710
00:30:54,929 --> 00:30:55,720
Tout lòt moun sa ki bon?

711
00:30:55,720 --> 00:30:57,561

712
00:30:57,561 --> 00:30:58,060
OK.

713
00:30:58,060 --> 00:31:02,750

714
00:31:02,750 --> 00:31:07,290
>> Epitou, mwen pral yo kreye
yon anonim Fòm Google,

715
00:31:07,290 --> 00:31:09,830
epi ou nèg ka jis soumèt
fidbak apre chak seksyon

716
00:31:09,830 --> 00:31:14,115
si gen nan yon bagay ou vle
amelyore sou oswa yon bagay ou vle fè.

717
00:31:14,115 --> 00:31:17,135
Si mwen se yon ti kras twò peppy
pou ou, mwen ka ton li desann.

718
00:31:17,135 --> 00:31:18,510

719
00:31:18,510 --> 00:31:20,885
Mwen pral kreye ki epi voye ki
soti nan nou tout apre sa.

720
00:31:20,885 --> 00:32:39,420

721
00:32:39,420 --> 00:32:40,020
>> Tout dwa.

722
00:32:40,020 --> 00:32:41,050
Se konsa, kite la kòmanse piti.

723
00:32:41,050 --> 00:32:42,740
Ki jan nou ta inisyalize etalaj nou an?

724
00:32:42,740 --> 00:32:49,690

725
00:32:49,690 --> 00:32:51,670
Ki sa ki nan kalite la nan etalaj nou an?

726
00:32:51,670 --> 00:32:52,410
Yon int, dwa?

727
00:32:52,410 --> 00:32:54,740
OK, se konsa ki sa ou vle
yo rele etalaj ou a?

728
00:32:54,740 --> 00:32:57,880

729
00:32:57,880 --> 00:32:59,230
Int etalaj, fre.

730
00:32:59,230 --> 00:33:04,200
Tout dwa, konsa nou gen int etalaj int
egal, ak sa nou genyen apre sa?

731
00:33:04,200 --> 00:33:07,009

732
00:33:07,009 --> 00:33:08,259
ELÈV: [fèbl] parantèz.

733
00:33:08,259 --> 00:33:09,140
ALLISON: aparèy òtopedik.

734
00:33:09,140 --> 00:33:10,330

735
00:33:10,330 --> 00:33:11,775
Lè sa a, andedan aparèy òtopedik yo?

736
00:33:11,775 --> 00:33:14,360

737
00:33:14,360 --> 00:33:16,830
Youn vigil vigil de twa.

738
00:33:16,830 --> 00:33:17,330
Fre.

739
00:33:17,330 --> 00:33:18,660
Se konsa, sa a, se tout dwa.

740
00:33:18,660 --> 00:33:21,480
Se konsa, kounye a nou gen nou an pou riban.

741
00:33:21,480 --> 00:33:24,180
Se konsa, nan premye pati nan nou an
pou riban, sa nou genyen?

742
00:33:24,180 --> 00:33:25,796

743
00:33:25,796 --> 00:33:27,420
>> ELÈV: mwen egal 0?

744
00:33:27,420 --> 00:33:31,400
>> ALLISON: Se konsa, int mwen egal 0,
ak Lè sa a ki sa ki kondisyon nou an?

745
00:33:31,400 --> 00:33:33,750

746
00:33:33,750 --> 00:33:36,120
Ki sa ki nan mwen pral yo dwe mwens pase?

747
00:33:36,120 --> 00:33:39,510
Mwens pase twa, ak
ki jan nou nou mete ajou mwen?

748
00:33:39,510 --> 00:33:41,630
mwen plis plis, à li pa youn.

749
00:33:41,630 --> 00:33:46,150
Lè sa a, nou ap ale nan gen
kèk printf nan nonb antye relatif la,

750
00:33:46,150 --> 00:33:49,530
ak sa ki ki sot pase a
pati sa a, se aktyèlman

751
00:33:49,530 --> 00:33:51,370
pral di ki sa nou ta dwe enprime?

752
00:33:51,370 --> 00:33:55,610

753
00:33:55,610 --> 00:33:59,120
Li ta non an nan la
etalaj, ki se etalaj int, dwa?

754
00:33:59,120 --> 00:34:01,090
Ak sa ki nan nan parantèz yo nan etalaj int?

755
00:34:01,090 --> 00:34:02,540

756
00:34:02,540 --> 00:34:03,640
mwen.

757
00:34:03,640 --> 00:34:06,550
[? Se konsa, mwen?] Rele m '
egzanp, men gen ou ale.

758
00:34:06,550 --> 00:34:07,939

759
00:34:07,939 --> 00:34:08,480
Se pa ke move.

760
00:34:08,480 --> 00:34:09,250
Tout moun sa ki bon?

761
00:34:09,250 --> 00:34:10,220

762
00:34:10,220 --> 00:34:10,719
Fre.

763
00:34:10,719 --> 00:34:12,949

764
00:34:12,949 --> 00:34:14,340
>> Se konsa, nou ap fè ak ranje yo.

765
00:34:14,340 --> 00:34:15,190
Congrats.

766
00:34:15,190 --> 00:34:18,274
Ou jere yo répétèr
nan tout the-- repons lan se wi?

767
00:34:18,274 --> 00:34:19,705
>> ELÈV: [fèbl]

768
00:34:19,705 --> 00:34:20,659
>> ALLISON: Wi.

769
00:34:20,659 --> 00:34:26,383

770
00:34:26,383 --> 00:34:27,798
>> ELÈV: Mwen gen yon kesyon.

771
00:34:27,798 --> 00:34:30,288
Èske ou sipoze indent aparèy òtopedik yo?

772
00:34:30,288 --> 00:34:34,150
>> ALLISON: Se konsa, aparèy òtopedik yo ta dwe liy moute
ak pou riban, ak Lè sa a tout bagay la

773
00:34:34,150 --> 00:34:35,699
andedan aparèy òtopedik yo ta dwe utilize.

774
00:34:35,699 --> 00:34:37,824
>> ELÈV: OK, yo ta dwe nan
pou riban dwe utilize?

775
00:34:37,824 --> 00:34:41,159
>> ALLISON: pou riban fè a pa
bezwen yo dwe utilize nan pwen sa.

776
00:34:41,159 --> 00:34:46,750
Si ou te nan prensipal la, si nou
aktyèlman te gen yon fonksyon prensipal isit la,

777
00:34:46,750 --> 00:34:48,929
li ta utilize soti nan prensipal la.

778
00:34:48,929 --> 00:34:52,590
Men, nan ka sa a, li la amann.

779
00:34:52,590 --> 00:34:53,354
Wi, kesyon.

780
00:34:53,354 --> 00:34:55,687
>> ELÈV: ou bezwen gen
parantèz yo apre egzanp?

781
00:34:55,687 --> 00:34:59,050

782
00:34:59,050 --> 00:35:01,260
>> ALLISON: Wi, si w ap
inisyalizin li fason sa.

783
00:35:01,260 --> 00:35:03,430

784
00:35:03,430 --> 00:35:06,860
Se konsa, sonje, sa a se dezyèm lan
fason pou inisyalizin yon etalaj kote

785
00:35:06,860 --> 00:35:10,680
nou gen aparèy òtopedik yo ak Lè sa a aktyèl nou an
done separe pa vigil nan.

786
00:35:10,680 --> 00:35:14,700

787
00:35:14,700 --> 00:35:17,281
>> ELÈV: Mwen te panse te gen
parantèz pou sa egzanp.

788
00:35:17,281 --> 00:35:19,010
>> ALLISON: Non, yo ap aparèy òtopedik.

789
00:35:19,010 --> 00:35:20,039
Yo ap aparèy òtopedik.

790
00:35:20,039 --> 00:35:22,330
Si w ap inisyalizin li
ke dezyèm fason, li nan aparèy òtopedik.

791
00:35:22,330 --> 00:35:28,780
Si nou te vle di, int example-- si
nou jis te vle yon etalaj vid pou antye,

792
00:35:28,780 --> 00:35:32,270
li ta Int egzanp parantèz twa.

793
00:35:32,270 --> 00:35:34,670
Parantèz yo reprezante gwosè a.

794
00:35:34,670 --> 00:35:36,720
Lè ou gen aparèy òtopedik,
li nan done yo reyèl

795
00:35:36,720 --> 00:35:39,244
w ap mete nan li nan fason sa.

796
00:35:39,244 --> 00:35:40,535
Nou ka woulo liv tounen reyèlman vit.

797
00:35:40,535 --> 00:35:42,370

798
00:35:42,370 --> 00:35:48,010
>> Se konsa, nan yon sèl sa a, sa a se jis nou an
premye etalaj, inisyalizasyon.

799
00:35:48,010 --> 00:35:51,640
Ak isit la, nou se endividyèlman
plase tach yo:

800
00:35:51,640 --> 00:35:56,730
kidonk sa a reprezante endèks la nan nou an
etalaj, ki se poukisa nou gen parantèz.

801
00:35:56,730 --> 00:36:01,630
Men, isit la, si ou remake, nou te
kite parantèz nou an san yo pa yon gwosè,

802
00:36:01,630 --> 00:36:05,969
epi nou inisyalize li ak nan
done aktyèl tout-an-yon sèl ak aparèy òtopedik.

803
00:36:05,969 --> 00:36:08,260
ELÈV: Se konsa, poukisa pa nou gen
parantèz nan egzanp sa a?

804
00:36:08,260 --> 00:36:11,030
ALLISON: Se konsa, nan ki pati?

805
00:36:11,030 --> 00:36:14,645
ELÈV: pa Èske nou
di, parantèz egzanp Int

806
00:36:14,645 --> 00:36:19,710
egal aparèy òtopedik [fèbl]
parantèz pou egzanp.

807
00:36:19,710 --> 00:36:20,900
>> ALLISON: Oh, regrèt.

808
00:36:20,900 --> 00:36:21,560
Ou se dwa.

809
00:36:21,560 --> 00:36:22,690
Nou gen parantèz la.

810
00:36:22,690 --> 00:36:23,486
Mesye Padon, move m 'yo.

811
00:36:23,486 --> 00:36:25,150

812
00:36:25,150 --> 00:36:27,560
Wi, ou ta dwe gen
parantèz apre egzanp.

813
00:36:27,560 --> 00:36:28,850
Ou se absoliman dwat.

814
00:36:28,850 --> 00:36:29,750
>> ELÈV: [fèbl] pa fè li.

815
00:36:29,750 --> 00:36:31,270
>> ALLISON: Non, ou gen gen
parantèz, paske otreman li nan

816
00:36:31,270 --> 00:36:32,810
pa ale nan deklare yon etalaj.

817
00:36:32,810 --> 00:36:33,685
ELÈV: [fèbl].

818
00:36:33,685 --> 00:36:34,200
Regrèt sou sa.

819
00:36:34,200 --> 00:36:36,200
>> ALLISON: Padon, ou bezwen
parantèz apre egzanp.

820
00:36:36,200 --> 00:36:36,620

821
00:36:36,620 --> 00:36:37,120
Typo.

822
00:36:37,120 --> 00:36:40,650

823
00:36:40,650 --> 00:36:43,160
Bon trape, lò zetwal pou ou.

824
00:36:43,160 --> 00:36:47,730
Epitou, si ou ap mande yon kesyon, si
ou nèg ta jis di m 'non ou,

825
00:36:47,730 --> 00:36:48,570
Mwen ta renmen sa.

826
00:36:48,570 --> 00:36:50,630
Mwen ta renmen pou kapab
konnen tout non ou.

827
00:36:50,630 --> 00:36:53,187
Mwen pa pwal a frèt
rele w, mwen aktyèlman

828
00:36:53,187 --> 00:36:54,520
jis vle konnen non ou.

829
00:36:54,520 --> 00:36:57,530
Se konsa, tanpri aktyèlman di m 'non ou.

830
00:36:57,530 --> 00:36:58,426
>> Leya: Leya.

831
00:36:58,426 --> 00:36:59,340
>> ALLISON: Leya.

832
00:36:59,340 --> 00:37:03,960
OK, se konsa functions-- mwen konnen nan kout
yo te pale sou sa a pandan konferans.

833
00:37:03,960 --> 00:37:07,590
Se konsa, fonksyon yo se kalite jis
tankou ti kras mòde-gwosè bagay sa yo

834
00:37:07,590 --> 00:37:11,525
kote ou pase nan entrain, yon bagay
majik k ap pase, epi ou jwenn rezilta.

835
00:37:11,525 --> 00:37:12,680

836
00:37:12,680 --> 00:37:13,180
Fre.

837
00:37:13,180 --> 00:37:15,013
Se konsa, ou aktyèlman itilize yon
anpil nan sa yo deja.

838
00:37:15,013 --> 00:37:15,970

839
00:37:15,970 --> 00:37:18,840
Jwenn Int, jwenn fisèl, ekri ak lèt ​​detache f.

840
00:37:18,840 --> 00:37:21,790
Sa yo se tout fonksyon
kote ou jis rele yo,

841
00:37:21,790 --> 00:37:24,370
gen nan anpil bagay majik
ap pase nan background nan

842
00:37:24,370 --> 00:37:27,390
ke ou pa nesesèman wè,
epi ou jwenn konnen ki sa ki ou vle.

843
00:37:27,390 --> 00:37:30,280
Oswa omwen ou jwenn
sa ou espere ou vle.

844
00:37:30,280 --> 00:37:31,920

845
00:37:31,920 --> 00:37:35,620
>> Ak fondamantalman pwen an nan fonksyon,
ak youn nan tèm prensipal yo nan CS,

846
00:37:35,620 --> 00:37:38,700
se kraze kòd ou a
an moso metrize.

847
00:37:38,700 --> 00:37:41,520
Lè ou kòmanse ekri
sa yo pwogram reyèlman long,

848
00:37:41,520 --> 00:37:44,970
oswa nan grafouyen lè ou te gen
ide sa a Grand pou yon jwèt,

849
00:37:44,970 --> 00:37:48,070
ou bezwen pou kapab kraze li
desann nan, tankou, OK, ki jan mwen kòmanse?

850
00:37:48,070 --> 00:37:50,470
Ki sa ki moso yo ti kras ki mwen bezwen?

851
00:37:50,470 --> 00:37:53,320
Oh, mwen bezwen mande a
itilizatè pou yon bagay.

852
00:37:53,320 --> 00:37:54,830
Koulye a, mwen bezwen enprime yon bagay.

853
00:37:54,830 --> 00:37:56,590
Oh, mwen bezwen kalkile valè sa a.

854
00:37:56,590 --> 00:38:00,050
>> Epi aprann kouman kraze moute ou
Kòd ak pwoblèm yo gwo ou

855
00:38:00,050 --> 00:38:02,740
gen nan sa yo ti moso
ak kreye fonksyon

856
00:38:02,740 --> 00:38:05,330
se aktyèlman youn nan la
pilye gwo nan CS.

857
00:38:05,330 --> 00:38:06,440

858
00:38:06,440 --> 00:38:11,740
Se konsa, ou ka panse a yon fonksyon menm jan
tankou yon bwat nwa, yon bwat nwa majik,

859
00:38:11,740 --> 00:38:15,030
ke ou mete bagay sa yo nan
epi ou jwenn kèk pwodiksyon.

860
00:38:15,030 --> 00:38:16,290

861
00:38:16,290 --> 00:38:19,460
Ak rès la nan pwogram nan
pa bezwen nesesèman konnen

862
00:38:19,460 --> 00:38:21,150
sa k ap pase nan ki bwat nwa.

863
00:38:21,150 --> 00:38:24,190
Tout li gen sousi pou se sa ki
ale nan ak sa soti.

864
00:38:24,190 --> 00:38:26,230

865
00:38:26,230 --> 00:38:26,730
Fre.

866
00:38:26,730 --> 00:38:27,820
>> Se konsa, poukisa fonksyon?

867
00:38:27,820 --> 00:38:33,240
Organization-- jan mwen te di, lè w ap
fè fas ak baz Kòd gwo anpil,

868
00:38:33,240 --> 00:38:37,357
ki jan ou òganize Kòd ou yo pral
pi fasil si ou itilize fonksyon.

869
00:38:37,357 --> 00:38:39,190
Paske ou pral kapab
yo dwe, tankou, OK sa a,

870
00:38:39,190 --> 00:38:41,849
se sa ki fonksyon sa a fè ak
isit la nan sa yon lòt yon sèl fè.

871
00:38:41,849 --> 00:38:43,890
Epi ou ka fasilman wè
ki jan yo tout anfòm yo ansanm.

872
00:38:43,890 --> 00:38:45,590

873
00:38:45,590 --> 00:38:48,210
Se konsa, kraze l 'kanpe nan tout
sa yo subparts metrize.

874
00:38:48,210 --> 00:38:51,860
>> Se konsa, simplification-- mwen si ke ou nèg
tout wè sa, jan mwen te di, ak grafonyen moun.

875
00:38:51,860 --> 00:38:53,230

876
00:38:53,230 --> 00:38:56,790
Ou gen ide sa a Grand, ak
w ap tankou, ki jan fè tout travay sa a?

877
00:38:56,790 --> 00:38:59,710
Men, si ou apwòch li
parselèr, ou di, OK,

878
00:38:59,710 --> 00:39:03,650
ki jan mwen fè yon sèl luten
flote nan tout ekran an?

879
00:39:03,650 --> 00:39:04,805
Sa se yon ti jan pi fasil.

880
00:39:04,805 --> 00:39:06,000

881
00:39:06,000 --> 00:39:09,590
Se konsa, bon pou sèvi ak fè fonksyon
kòd ou a pi fasil li.

882
00:39:09,590 --> 00:39:13,800
Li fè li pi fasil yo debug ki kòm
ou jwenn yo nan aparèy televisyon HD pita pwoblèm ou an,

883
00:39:13,800 --> 00:39:15,900
w ap ale nan reyèlman
vle yo dwe kapab fè.

884
00:39:15,900 --> 00:39:17,900
Apre sa, yo ap tou pi fasil
nan konsepsyon ak aplike.

885
00:39:17,900 --> 00:39:21,100
Ou ka Kòd moute yon ti
fonksyone relativman byen vit

886
00:39:21,100 --> 00:39:25,260
ak asire w ke li ap travay kont ap
yo kreye pwogram lontan antye sa a

887
00:39:25,260 --> 00:39:28,960
ak Lè sa a kalite ale nan ak
wè sa ki nan k ap travay ak sa ki nan pa.

888
00:39:28,960 --> 00:39:30,300
>> Lè sa a, reutilizabilite.

889
00:39:30,300 --> 00:39:33,380
Se konsa, fonksyon sèlman bezwen
Ou dwe ekri yon fwa,

890
00:39:33,380 --> 00:39:35,586
ak Lè sa a ou ka sèvi ak yo
kòm anpil fwa ke posib.

891
00:39:35,586 --> 00:39:37,210
Se konsa, li, tankou, ekolojik-zanmi nan yon sans.

892
00:39:37,210 --> 00:39:39,660

893
00:39:39,660 --> 00:39:42,070
Si ou te gen bagay sa yo tankou
ekri ak lèt ​​detache f, kote ou

894
00:39:42,070 --> 00:39:47,420
te gen yo ekri soti majik la ki ale
sou dèyè enprime f chak fwa yon sèl

895
00:39:47,420 --> 00:39:51,040
ou te vle ekri ak lèt ​​detache yon bagay, ou
ta dwe trè malad epi fatige nan li

896
00:39:51,040 --> 00:39:51,650
nan fen an.

897
00:39:51,650 --> 00:39:52,660

898
00:39:52,660 --> 00:39:55,292
>> Youn nan bagay sa yo ke ou pral
aprann nan pita klas CS,

899
00:39:55,292 --> 00:39:57,000
oswa yon sèl nan pi bon an
moso nan konsèy mwen jwenn

900
00:39:57,000 --> 00:40:00,870
se, si w ap kopye ak kole
Kòd, li ta pwobableman gen yon fonksyon.

901
00:40:00,870 --> 00:40:01,880

902
00:40:01,880 --> 00:40:06,007
Si ou gen menm bagay la tou egzak
liy tout nan tout kòd ou a,

903
00:40:06,007 --> 00:40:08,090
si ou faktè yo soti,
kòd ou ta pwobableman

904
00:40:08,090 --> 00:40:11,860
dwe, tankou, senk fwa pi kout
yo epi yo dwe pi plis fasil li.

905
00:40:11,860 --> 00:40:15,230
Ak olye pou yo ap eseye rézoudr
tout bagay sa yo diferan kote kote bagay sa yo

906
00:40:15,230 --> 00:40:18,021
ta ka ale mal, ou gen yon fonksyon
ke ou jwenn yo rézoudr.

907
00:40:18,021 --> 00:40:19,230

908
00:40:19,230 --> 00:40:21,890
Apre sa, mwen pwomèt, yon anpil nan sa a
ta ka sanble kalite abstrè, koulye a,

909
00:40:21,890 --> 00:40:24,620
men kòm ou jwenn yo nan pita
epi pita pwoblèm kouche,

910
00:40:24,620 --> 00:40:28,950
li pral fè yon anpil plis sans
ak reyèlman ka kondi kay la.

911
00:40:28,950 --> 00:40:31,775
Èske gen nenpòt kesyon
sou fonksyon byen lwen tèlman?

912
00:40:31,775 --> 00:40:32,650
Poukisa nou ap lè l sèvi avèk yo?

913
00:40:32,650 --> 00:40:34,775
Mwen konnen nou pa gen vinn
nan courageux a nitty ankò.

914
00:40:34,775 --> 00:40:40,610
Se konsa, defini yon fonksyon jis tankou
ranje, nou bezwen kèk sòt of-- sa a

915
00:40:40,610 --> 00:40:41,860
se jis pwodiksyon an jeneral.

916
00:40:41,860 --> 00:40:45,110
Se konsa, sa a se yon fonksyon sa a, se
jis ale nan kib kèk D '.

917
00:40:45,110 --> 00:40:50,120
Yo, epi sou pwochen paj la, aktyèlman, nou gen
tout bagay sa yo ti kras pè isit la.

918
00:40:50,120 --> 00:40:52,420
Se konsa, tout moun ka li
sa, soti nan kiryozite?

919
00:40:52,420 --> 00:40:55,050
Mwen konnen koulè wouj violèt a ak nwa
ta kapab yon ti kras difisil.

920
00:40:55,050 --> 00:41:00,730
>> Men, bagay sa yo gwo know-- konsa premye a
yon sèl dwa isit la se tip retounen nou an.

921
00:41:00,730 --> 00:41:05,270
Se konsa, sa ap pale de pwodiksyon an
nan fonksyon sa a lè, nan ka sa a,

922
00:41:05,270 --> 00:41:08,990
nou mete nan kèk nimewo, ki sa nou ap
ap resevwa se ke Gleason kantite.

923
00:41:08,990 --> 00:41:11,090
Se konsa, li ta dwe yon int nan ka sa a.

924
00:41:11,090 --> 00:41:14,055
Petèt li ta dwe yon doub oswa
yon lòt bagay pita, men nan ka sa a,

925
00:41:14,055 --> 00:41:14,555
li nan yon int.

926
00:41:14,555 --> 00:41:15,620

927
00:41:15,620 --> 00:41:19,440
>> Avèk c, ou toujou bezwen yon kalite retou.

928
00:41:19,440 --> 00:41:20,267
Li pral yon int.

929
00:41:20,267 --> 00:41:20,975
Li pral yon flote.

930
00:41:20,975 --> 00:41:22,180
Li pral gen yon doub.

931
00:41:22,180 --> 00:41:25,370
Men, ou gen presize ki sa
fonksyon sa a ki pral retounen.

932
00:41:25,370 --> 00:41:26,480

933
00:41:26,480 --> 00:41:29,170
Sinon li pral rele nan
ou, epi li pa pral konpile.

934
00:41:29,170 --> 00:41:30,462
Ou pral tris, epi mwen pral gen lapenn.

935
00:41:30,462 --> 00:41:31,420
Lè li nan jis pa bon.

936
00:41:31,420 --> 00:41:31,940
OK.

937
00:41:31,940 --> 00:41:34,290
>> Lè sa a, nou gen non fonksyon nou an.

938
00:41:34,290 --> 00:41:38,440
Ak jan ou ka wè isit la, ak c
gen nan sa a paradigm trè ki konsistan.

939
00:41:38,440 --> 00:41:42,630
Ki sa ki nan kalite ou, sa ki nan non an,
ak Lè sa a kèk lòt bagay nan fen an.

940
00:41:42,630 --> 00:41:45,550
Se konsa, nou gen kalite retounen nou an,
non fonksyon nou an, epi Lè sa a,

941
00:41:45,550 --> 00:41:49,320
nou gen header nou ak
lis paramèt nou an.

942
00:41:49,320 --> 00:41:52,080
>> Se konsa, lis la paramèt se, ki sa ki
sa a fonksyon pral pran nan?

943
00:41:52,080 --> 00:41:56,360
Yon lis paramèt se tou senpleman yon
synonym pou, ki sa yo entrain nou an?

944
00:41:56,360 --> 00:42:00,230
Ak nan menm fason an ke nou
gen defini fonksyon nou an

945
00:42:00,230 --> 00:42:03,210
epi remèt li yon retou
tape, yo chak nan entrain nou an

946
00:42:03,210 --> 00:42:05,350
bezwen gen yon kalite asosye ak li.

947
00:42:05,350 --> 00:42:08,850
Se konsa, nou konnen ki sa fonksyon nou an
ka aktyèlman travay avèk yo.

948
00:42:08,850 --> 00:42:11,290
>> Se konsa, nan ka sa a, nou gen kèk D 'Int.

949
00:42:11,290 --> 00:42:14,660
Se konsa, ankò, li pral kalite a
ak sa ou ap rele li.

950
00:42:14,660 --> 00:42:16,500

951
00:42:16,500 --> 00:42:19,040
Epi lè sa a, menm jan ou wè
isit la, nou gen kò nou an.

952
00:42:19,040 --> 00:42:23,600
Se konsa, nou gen kèk pwodiksyon Int, ki
se jis fwa D 'nou an tèt li

953
00:42:23,600 --> 00:42:25,810
fwa tèt li, ki jis kib li.

954
00:42:25,810 --> 00:42:27,610
Lè sa a, nou retounen ke randman.

955
00:42:27,610 --> 00:42:32,140
>> Se konsa, kòm ou wè la a, nou gen yon
Int fwa yon int fwa yon int,

956
00:42:32,140 --> 00:42:35,420
se konsa li retounen yon int, ki
ki te deklare a.

957
00:42:35,420 --> 00:42:38,240
Se konsa, tout bagay se limenm.

958
00:42:38,240 --> 00:42:39,210
Tout nan kè kontan.

959
00:42:39,210 --> 00:42:40,250
Fonksyon ou a ap kouri.

960
00:42:40,250 --> 00:42:41,192

961
00:42:41,192 --> 00:42:42,650
Lè sa a se jis bagay la an jeneral.

962
00:42:42,650 --> 00:42:46,750
Se konsa, toujou gen kalite retou,
non, ak lis paramèt ou yo.

963
00:42:46,750 --> 00:42:48,830
Chak bagay nan ou
lis paramèt, oswa D ',

964
00:42:48,830 --> 00:42:51,410
bezwen gen yon kalite asosye ak li.

965
00:42:51,410 --> 00:42:54,210
Lè sa a, ou gen ou
kò isit la ak tou sa

966
00:42:54,210 --> 00:42:55,590
ou vle fè ak konsèy ou yo.

967
00:42:55,590 --> 00:42:57,390

968
00:42:57,390 --> 00:43:00,410
>> Lè sa a, evidamman ou
vle retounen yon bagay.

969
00:43:00,410 --> 00:43:02,630
Pafwa fonksyon pral jis retounen.

970
00:43:02,630 --> 00:43:06,090
Yo pa aktyèlman retounen
yon bagay pou ou yo sèvi ak.

971
00:43:06,090 --> 00:43:08,660
Men, ou gen retounen nan kèk fason.

972
00:43:08,660 --> 00:43:12,900
Men, lè ou ap fè
fonksyon pwòp ou a,

973
00:43:12,900 --> 00:43:15,430
nou ka jwenn nan ki yon ti kras pi fon.

974
00:43:15,430 --> 00:43:18,880
Pèsonèlman, si ou vle, gen yon anpil
nan bagay diferan ou ta ka fè a.

975
00:43:18,880 --> 00:43:21,350

976
00:43:21,350 --> 00:43:22,140
Tout moun sa ki bon?

977
00:43:22,140 --> 00:43:25,900
Nenpòt bagay sou lis sa a ke ou vle m '
ale sou, ke ou pa t 'konprann?

978
00:43:25,900 --> 00:43:27,204

979
00:43:27,204 --> 00:43:28,120
Tout moun nan bon a?

980
00:43:28,120 --> 00:43:29,071

981
00:43:29,071 --> 00:43:29,570
Fre.

982
00:43:29,570 --> 00:43:31,350

983
00:43:31,350 --> 00:43:32,120
Awesome.

984
00:43:32,120 --> 00:43:34,700
>> OK, se konsa nou ap mete
tout ansanm sa a kounye a.

985
00:43:34,700 --> 00:43:35,720

986
00:43:35,720 --> 00:43:41,201
Se konsa, nou gen kèk D 'kib Int, se konsa
sa a se yon pwogram konplè isit la.

987
00:43:41,201 --> 00:43:42,950
Up jouk koulye a, mwen te
kalite te ban nou

988
00:43:42,950 --> 00:43:45,699
mesye koupe ki ta ka
dwe ale nan yon pwogram.

989
00:43:45,699 --> 00:43:47,240
Nou te jis te gade nan fonksyon.

990
00:43:47,240 --> 00:43:48,448
Men, isit la nan yon pwogram antye.

991
00:43:48,448 --> 00:43:49,400

992
00:43:49,400 --> 00:43:53,690
Se konsa, kouman anpil nan nou sonje nan
pwototip mo nan konferans?

993
00:43:53,690 --> 00:43:54,750

994
00:43:54,750 --> 00:43:55,300
Fre.

995
00:43:55,300 --> 00:43:55,890
Nou te gen yon sèl.

996
00:43:55,890 --> 00:43:57,160

997
00:43:57,160 --> 00:43:58,110
Ki sa ki nan non ou?

998
00:43:58,110 --> 00:43:58,850
>> Stèf: stèf.

999
00:43:58,850 --> 00:43:59,475
>> ALLISON: stèf?

1000
00:43:59,475 --> 00:44:01,030
OK, pè.

1001
00:44:01,030 --> 00:44:03,310
Se konsa, ou sonje sa yon pwototip se?

1002
00:44:03,310 --> 00:44:04,651

1003
00:44:04,651 --> 00:44:10,230
>> ELÈV: Ou di [fèbl]
ou anvan ou aktyèlman fè fas ak li.

1004
00:44:10,230 --> 00:44:11,700
>> ALLISON: ou sonje poukisa?

1005
00:44:11,700 --> 00:44:13,158
>> ELÈV: No

1006
00:44:13,158 --> 00:44:14,620
>> ALLISON: OK.

1007
00:44:14,620 --> 00:44:16,090
Gold zetwal.

1008
00:44:16,090 --> 00:44:19,470
Se konsa, wi, yon pwototip nou gen
davans, paske otreman,

1009
00:44:19,470 --> 00:44:21,260
du nou an ki pral rele nan nou.

1010
00:44:21,260 --> 00:44:24,294
Li nan ale nan di, OK,
ki sa ki fonksyon kib sa a?

1011
00:44:24,294 --> 00:44:26,460
Tankou, ou literalman gen
te di m 'pa gen anyen sou sa a.

1012
00:44:26,460 --> 00:44:28,110
Se tankou lè ou
mache nan yon sal klas,

1013
00:44:28,110 --> 00:44:29,320
ak yon moun nan tankou,
gen nan yon egzamen jodi a.

1014
00:44:29,320 --> 00:44:31,380
Epi w ap tankou, ou
pa janm te di m 'sou sa a.

1015
00:44:31,380 --> 00:44:32,930
Mwen pa kontan ak nou.

1016
00:44:32,930 --> 00:44:34,300

1017
00:44:34,300 --> 00:44:37,020
Pwototip a se fondamantalman tankou
progranm ou di, gade.

1018
00:44:37,020 --> 00:44:37,900
Tèt moute.

1019
00:44:37,900 --> 00:44:39,570
Gen k ap pase yo dwe yon egzamen sou jou sa a.

1020
00:44:39,570 --> 00:44:41,420
pa toune fou lè ou jwenn nan li.

1021
00:44:41,420 --> 00:44:42,690
W ap ale nan dwe amann.

1022
00:44:42,690 --> 00:44:48,170
>> Se konsa, tout pwototip a se di
prensipal yo, mwen pral sèvi avèk fonksyon sa a.

1023
00:44:48,170 --> 00:44:51,010
Mwen te pwomèt mwen defini li pita.

1024
00:44:51,010 --> 00:44:52,260
pa toune fou nan m '.

1025
00:44:52,260 --> 00:44:54,750
Jis konpile epi fè sa m 'di ou.

1026
00:44:54,750 --> 00:44:58,880
Se konsa, nou gen pwototip a gen
jis fè du nou an kè kontan.

1027
00:44:58,880 --> 00:45:04,360
Lè li nan fondamantalman yon pwomès ki
ou te defini fonksyon sa a pita

1028
00:45:04,360 --> 00:45:07,960
ak ke ou ap pa sèlman rele
bagay sa a o aza ke li

1029
00:45:07,960 --> 00:45:10,070
pa konnen ki sa w ap
yo pral fè.

1030
00:45:10,070 --> 00:45:11,910
>> Se konsa, nan ka sa a, nou gen prensipal isit la.

1031
00:45:11,910 --> 00:45:14,660
Nou inisyalize kèk nonb antye relatif x.

1032
00:45:14,660 --> 00:45:15,620
Sa a de.

1033
00:45:15,620 --> 00:45:17,510
Nou pral enprime soti sa ki x se.

1034
00:45:17,510 --> 00:45:18,800
Nou pral kib x.

1035
00:45:18,800 --> 00:45:21,520
Kòm ou wè, nou gen nou an
deklarasyon fonksyon

1036
00:45:21,520 --> 00:45:23,770
desann isit la ke nou
te pale osijè de deja.

1037
00:45:23,770 --> 00:45:28,260
Li pral kib x, ak Lè sa a, si nou
sonje, fonksyon an kib aktyèlman

1038
00:45:28,260 --> 00:45:31,340
retounen yon nonb antye relatif
nou, ki se ki estoke

1039
00:45:31,340 --> 00:45:35,860
nan x ankò pou nou ka enprime
soti uit, oswa kib x kounye a.

1040
00:45:35,860 --> 00:45:37,170

1041
00:45:37,170 --> 00:45:38,920
ki fè sans a tout moun?

1042
00:45:38,920 --> 00:45:40,360
Nou bon?

1043
00:45:40,360 --> 00:45:41,160
Tout dwa.

1044
00:45:41,160 --> 00:45:41,660
Awesome.

1045
00:45:41,660 --> 00:45:45,540

1046
00:45:45,540 --> 00:45:46,840
>> Tout dwa.

1047
00:45:46,840 --> 00:45:50,879
Konbyen nan ou nèg
sonje sa a se konsa sa a

1048
00:45:50,879 --> 00:45:52,670
se fondamantalman jis ou
chemine ak pil wòch ou,

1049
00:45:52,670 --> 00:45:56,510
jis yon vizyalizasyon nan
ki jan memwa ki estoke isit la.

1050
00:45:56,510 --> 00:45:58,200

1051
00:45:58,200 --> 00:46:01,400
Se konsa, nou jis vle fè
asire w ke ou konprann

1052
00:46:01,400 --> 00:46:03,680
ki jan sa yo yo reprezante nan memwa.

1053
00:46:03,680 --> 00:46:07,670
Si ou pran kou tankou
CS61 ak lòt bagay pita,

1054
00:46:07,670 --> 00:46:10,570
ou jwenn yo aprann sa a byen lwen plis
nan pwofondè, epi li vrèman fre.

1055
00:46:10,570 --> 00:46:11,730
Mwen trè rekòmande pou li.

1056
00:46:11,730 --> 00:46:12,740

1057
00:46:12,740 --> 00:46:14,720
Men, pou kounye a, Mwen pral ba
ou BECA a laj

1058
00:46:14,720 --> 00:46:16,950
se konsa ou pa bezwen
konnen courageux a nitty.

1059
00:46:16,950 --> 00:46:20,820
>> Se konsa, tèt la jis yon segman tèks ki
gen zewo yo reyèl ak moun yo,

1060
00:46:20,820 --> 00:46:23,740
binè la pou sa.

1061
00:46:23,740 --> 00:46:27,510
Lè sa a se itilize pou estoke
varyab mondyal si ou gen nenpòt.

1062
00:46:27,510 --> 00:46:28,870

1063
00:46:28,870 --> 00:46:32,240
Kòm ou deplase desann, nou
gen, menm jan ou wè la a,

1064
00:46:32,240 --> 00:46:34,670
done inisyalizèd, uninitialized
done, ak Lè sa a pil wòch.

1065
00:46:34,670 --> 00:46:35,800

1066
00:46:35,800 --> 00:46:38,584
>> Se konsa, nou pa reyèlman pale
sou pil wòch la kounye a.

1067
00:46:38,584 --> 00:46:39,500
Nou pral ale nan li pita.

1068
00:46:39,500 --> 00:46:40,762

1069
00:46:40,762 --> 00:46:42,970
Pou kounye a, mwen jis ale nan
balanse men m 'yo epi yo dwe tankou,

1070
00:46:42,970 --> 00:46:44,553
ou pa bezwen konnen sou sa a kounye a.

1071
00:46:44,553 --> 00:46:46,100

1072
00:46:46,100 --> 00:46:49,060
Men, nou pral pale yon ti kras
ti jan sou pil la.

1073
00:46:49,060 --> 00:46:53,050
Se konsa, chemine a se where-- nou gen rale nan.

1074
00:46:53,050 --> 00:46:58,590
Sa a se aktyèlman ki jan pwogram nan
nou jis gade rive nan memwa.

1075
00:46:58,590 --> 00:47:01,630
>> Se konsa, sa k ap pase se, chak
fwa nou rele yon fonksyon,

1076
00:47:01,630 --> 00:47:04,180
nou jwenn sa ki rele yon pil
ankadreman, ki se youn nan sa yo.

1077
00:47:04,180 --> 00:47:05,870
Se konsa, paramèt prensipal la.

1078
00:47:05,870 --> 00:47:07,944
Se konsa, sa yo se bagay sa yo
ke nou pase nan prensipal la.

1079
00:47:07,944 --> 00:47:11,110
Se konsa, yo ap dwa isit la nan pati anba a,
paske se sa premye bagay la nou rele.

1080
00:47:11,110 --> 00:47:13,401
Lè sa a, nou jwenn yo nan prensipal
moun nan lokalite, ak lè nou di ke,

1081
00:47:13,401 --> 00:47:15,970
nou vle di varyab yo lokal yo
ki yo estoke nan prensipal la.

1082
00:47:15,970 --> 00:47:19,950

1083
00:47:19,950 --> 00:47:23,620
Se konsa, moun nan lokalite isit la ta dwe, tankou,
x se egal a de nan ka sa a.

1084
00:47:23,620 --> 00:47:26,350
Paske ki nan lokalize prensipal la.

1085
00:47:26,350 --> 00:47:29,745
tout moun sonje sijè ki abòde,
ale sou ke nan konferans?

1086
00:47:29,745 --> 00:47:31,517

1087
00:47:31,517 --> 00:47:32,017
OK.

1088
00:47:32,017 --> 00:47:36,110
Se konsa, jis varyab yo ki
yo inisyalizèd nan prensipal la.

1089
00:47:36,110 --> 00:47:38,550
Se konsa, sa a, se rezon sa a genyen prensipal [? chan. ?]

1090
00:47:38,550 --> 00:47:40,390
>> Lè sa a, ki nan prensipal la, nou rele kib.

1091
00:47:40,390 --> 00:47:41,000
Dwa?

1092
00:47:41,000 --> 00:47:44,510
Se konsa, nou jwenn yon lòt ankadreman
ak paramèt kib la.

1093
00:47:44,510 --> 00:47:47,050
Se konsa, nan ka sa a, kib la
paramèt yo kounye a se

1094
00:47:47,050 --> 00:47:50,800
x la ke nou te pase nan,
de la ke nou te pase nan.

1095
00:47:50,800 --> 00:47:55,320
Lè sa a, moun nan lokalite kib a, ki se
kote aktyèl la cubing k ap pase.

1096
00:47:55,320 --> 00:47:56,450
Lè sa a, li retounen.

1097
00:47:56,450 --> 00:48:02,120
>> Se konsa, sa k ap pase se ke kib aktyèlman fè
ki sa li la sipoze fè, li retounen.

1098
00:48:02,120 --> 00:48:07,020
Lè li retounen, sa a ankadreman kite,
, li tounen li yo desann nan prensipal la.

1099
00:48:07,020 --> 00:48:09,160
Lè sa a, ki nan prensipal la, nou
ka aktyèlman enprime li.

1100
00:48:09,160 --> 00:48:10,840

1101
00:48:10,840 --> 00:48:14,500
Se konsa, lè w ap retounen yon bagay,
lè fonksyon ou retounen,

1102
00:48:14,500 --> 00:48:19,900
li a tankou pase sou valè sa yo
ankadreman an anba a li ak Lè sa a kite.

1103
00:48:19,900 --> 00:48:22,200
Ak bagay sa yo gen al touye yo nan lòd.

1104
00:48:22,200 --> 00:48:25,550
>> Men, lè ou jwenn yo pi gwo pwogram,
nou ka fè pi fre ak pi konplike

1105
00:48:25,550 --> 00:48:26,470
dyagram.

1106
00:48:26,470 --> 00:48:29,070
Men, pou kounye a, sa a se
jis yon rezime jeneral

1107
00:48:29,070 --> 00:48:31,110
kidonk, ou gen kalite yon
konpreyansyon yo genyen sou sa ki

1108
00:48:31,110 --> 00:48:35,160
k ap pase lè w ap rele yon fonksyon
ak ki jan ki aktyèlman sanble nan memwa.

1109
00:48:35,160 --> 00:48:37,230

1110
00:48:37,230 --> 00:48:37,770
Cool?

1111
00:48:37,770 --> 00:48:38,353
Tout moun sa ki bon?

1112
00:48:38,353 --> 00:48:39,920

1113
00:48:39,920 --> 00:48:40,420
Awesome.

1114
00:48:40,420 --> 00:48:42,070

1115
00:48:42,070 --> 00:48:50,575
>> Se konsa, sa a se youn ki se
jis ap eseye swap bagay sa yo.

1116
00:48:50,575 --> 00:48:52,260

1117
00:48:52,260 --> 00:48:54,930
Kòm nou wè isit la, nou gen
pwototip fonksyon nou an

1118
00:48:54,930 --> 00:48:56,900
se konsa ke du nou yo pa rele nan nou.

1119
00:48:56,900 --> 00:48:59,220
Nou gen kèk prensipal yo, epi nou
vle chanje x ak y.

1120
00:48:59,220 --> 00:49:00,320

1121
00:49:00,320 --> 00:49:04,129
Yo pa te fè sa a Demo
nan konferans ankò, gen yo?

1122
00:49:04,129 --> 00:49:04,670
Yo pa gen?

1123
00:49:04,670 --> 00:49:05,900
OK.

1124
00:49:05,900 --> 00:49:08,450
Se konsa, nou ap ale nan ale
sou sa a trè yon ti tan.

1125
00:49:08,450 --> 00:49:12,210
Ou ap jwenn nan egzanp sa a plis
nan pwofondè, mwen panse, semèn sa a.

1126
00:49:12,210 --> 00:49:15,680
Lè sa a, semèn pwochèn nou kapab reyèlman
plonje nan poukisa sa a pa travay.

1127
00:49:15,680 --> 00:49:18,810
>> Se konsa, nou gen anile sa a
fonksyon isit lan-- swap.

1128
00:49:18,810 --> 00:49:20,720
Se konsa, anile jis vle di ke
pa gen anyen ki retounen.

1129
00:49:20,720 --> 00:49:22,000

1130
00:49:22,000 --> 00:49:24,110
Epi nou gen swap Int yon ak int b.

1131
00:49:24,110 --> 00:49:27,046
Epi nou gen kèk pou yon ti tan
varyab ki nan yon.

1132
00:49:27,046 --> 00:49:30,050
yon vin asiyen nan b, ak Lè sa a,
b vin asiyen nan temp la

1133
00:49:30,050 --> 00:49:32,235
se konsa ke a ak b a
valè yo kounye a se chanje.

1134
00:49:32,235 --> 00:49:33,510

1135
00:49:33,510 --> 00:49:36,030
>> Men,, trase atè ou ta di, sa a pa travay.

1136
00:49:36,030 --> 00:49:37,390

1137
00:49:37,390 --> 00:49:42,380
Ak yon pati nan li aktyèlman gen
fè ak lefèt ke yon

1138
00:49:42,380 --> 00:49:48,800
ak b isit la, sa yo ki jwenn te pase nan
isit la, yo aktyèlman kopi x ak y.

1139
00:49:48,800 --> 00:49:53,220
Se konsa, lè fonksyon an aktyèlman retounen,
li switch kopi yo men se pa

1140
00:49:53,220 --> 00:49:55,960
x aktyèl la ak y nan.

1141
00:49:55,960 --> 00:50:02,370
Se konsa, yon fason yo reflechi sou li se
that-- pretann sa yo, se swap.

1142
00:50:02,370 --> 00:50:03,130
OK?

1143
00:50:03,130 --> 00:50:05,390
Se konsa, nan prensipal yo, nou gen x ak y inisyalizèd.

1144
00:50:05,390 --> 00:50:06,530

1145
00:50:06,530 --> 00:50:10,760
Men, lè nou aktyèlman ale moute
ankadreman sa yo ak swap,

1146
00:50:10,760 --> 00:50:15,740
nou ap pase valè yo sou
nan li, epi yo ap inisyalizèd.

1147
00:50:15,740 --> 00:50:18,570
>> Apre sa, yo sèlman janm viv isit la menm.

1148
00:50:18,570 --> 00:50:19,796
Se konsa, yon ak b viv isit la.

1149
00:50:19,796 --> 00:50:20,670
Apre sa, yo jwenn échanges.

1150
00:50:20,670 --> 00:50:21,870

1151
00:50:21,870 --> 00:50:26,190
Men, lè nou retounen, nou pa fè sa
fè anyen ak yon ak b. yon

1152
00:50:26,190 --> 00:50:28,980
ak b konje ak fonksyon nou an.

1153
00:50:28,980 --> 00:50:30,850
Se konsa, x ak y rete menm bagay la.

1154
00:50:30,850 --> 00:50:31,960

1155
00:50:31,960 --> 00:50:39,665
Ou ap jwenn plis nan ki jan yo ranje sa ki epi
ki jan nou aktyèlman fè fas ak sa pita.

1156
00:50:39,665 --> 00:50:40,750

1157
00:50:40,750 --> 00:50:43,740
>> Men, li la jis yon sèl bagay
kalite kenbe nan tèt ou.

1158
00:50:43,740 --> 00:50:45,270
Sèvi ak li pou lavni.

1159
00:50:45,270 --> 00:50:48,050
Pa enkyete w si ki pa te fè
tout sans nan nan mond lan.

1160
00:50:48,050 --> 00:50:49,510

1161
00:50:49,510 --> 00:50:51,440
Yo se kopi se bagay ki pi gwo.

1162
00:50:51,440 --> 00:50:54,580
Si w ap ale nan pran anyen
lwen sa, ou te pase nan kopi.

1163
00:50:54,580 --> 00:50:56,410
Se konsa, orijinal yo rete menm jan an.

1164
00:50:56,410 --> 00:50:58,170

1165
00:50:58,170 --> 00:50:58,770
Tout moun sa ki bon?

1166
00:50:58,770 --> 00:51:00,280

1167
00:51:00,280 --> 00:51:00,930
Fre.

1168
00:51:00,930 --> 00:51:02,295
>> Se konsa, lòd-liy agiman.

1169
00:51:02,295 --> 00:51:03,520

1170
00:51:03,520 --> 00:51:07,630
Mwen si ke depi nan konmansman an ou nèg tout
te gen moun gwo, tankou, int ki vid yo prensipal la.

1171
00:51:07,630 --> 00:51:09,517
Epi w ap tankou, OK fre.

1172
00:51:09,517 --> 00:51:10,350
Mwen pa reyèlman sousye.

1173
00:51:10,350 --> 00:51:12,360
Sa a se jis sa mwen te vle ekri.

1174
00:51:12,360 --> 00:51:16,349
Men, nan nouvo pwogram ou an,
espesyalman nan sa a pset,

1175
00:51:16,349 --> 00:51:17,890
ak poukisa ki gen la lakre sou tè a?

1176
00:51:17,890 --> 00:51:19,640

1177
00:51:19,640 --> 00:51:22,680
>> Avèk pset pwochèn ou an, w ap
ale nan dwe wè sa a.

1178
00:51:22,680 --> 00:51:26,130
Int prensipal yo, Int ARG c,
arc ak fisèl v, parantèz.

1179
00:51:26,130 --> 00:51:28,770
Se konsa, soti nan sa ki nou jis
aprann jodi a, sa ki

1180
00:51:28,770 --> 00:51:32,190
nou panse ke dezyèm paramèt
oswa ki eleman dezyèm se isit la?

1181
00:51:32,190 --> 00:51:34,830

1182
00:51:34,830 --> 00:51:35,824
Li nan yon etalaj.

1183
00:51:35,824 --> 00:51:36,615
Ki kalite etalaj?

1184
00:51:36,615 --> 00:51:38,430

1185
00:51:38,430 --> 00:51:40,690
Etalaj fisèl, wi.

1186
00:51:40,690 --> 00:51:41,980
Fre.

1187
00:51:41,980 --> 00:51:45,320
Se konsa, lè sa a jan w ap ale
yo dwe deklare sa yo kounye a.

1188
00:51:45,320 --> 00:51:48,570
>> nenpòt moun ki sonje
sa ki sa yo kanpe pou?

1189
00:51:48,570 --> 00:51:52,551

1190
00:51:52,551 --> 00:51:53,050
Pa gen?

1191
00:51:53,050 --> 00:51:54,020

1192
00:51:54,020 --> 00:51:54,520
Hmm?

1193
00:51:54,520 --> 00:51:55,640
>> ELÈV: ARG c.

1194
00:51:55,640 --> 00:51:56,961

1195
00:51:56,961 --> 00:51:58,950
>> ALLISON: Se konsa, ARG c kenbe yon vann san preskripsyon.

1196
00:51:58,950 --> 00:51:59,450
Li nan yon int.

1197
00:51:59,450 --> 00:52:00,615
Li se yon nimewo, dwa?

1198
00:52:00,615 --> 00:52:02,240
Se konsa, ki sa ou panse ke nimewo se nan?

1199
00:52:02,240 --> 00:52:08,260

1200
00:52:08,260 --> 00:52:08,760
Yeah.

1201
00:52:08,760 --> 00:52:11,450
Se konsa, ARG c se nimewo a nan strings
ki fè moute liy lan lòd.

1202
00:52:11,450 --> 00:52:12,560

1203
00:52:12,560 --> 00:52:18,499
Se konsa, si nou te do-- aktyèlman,
gen yo se egzanp apre sa a,

1204
00:52:18,499 --> 00:52:19,790
Se konsa, mwen pa pral jwenn devan yo nan tèt mwen.

1205
00:52:19,790 --> 00:52:21,299

1206
00:52:21,299 --> 00:52:23,840
Li nan yon nimewo nan strings ki
jis fè moute liy lòd ou yo.

1207
00:52:23,840 --> 00:52:35,080
>> Se konsa, lè ou fè sa, tankou, dot koupe Mario,
sa a, se yon sèl fisèl ki fè l 'kanpe.

1208
00:52:35,080 --> 00:52:38,520
Nan pyès sa a, ou pral aktyèlman ap
manje bagay sa yo nan liy la bay lòd,

1209
00:52:38,520 --> 00:52:41,750
jan mwen si ke ou nèg ki
te li wè a espèk.

1210
00:52:41,750 --> 00:52:44,470
Se konsa, nan ka sa yo, petèt ou pral
gen de oswa twa agiman.

1211
00:52:44,470 --> 00:52:45,652

1212
00:52:45,652 --> 00:52:48,360
Li nan ale nan gen yon bagay ki itil yo sèvi ak.

1213
00:52:48,360 --> 00:52:51,500
>> Lè sa a, ARG v, kòm nou te di,
se jis yon etalaj fisèl.

1214
00:52:51,500 --> 00:52:57,000
Se konsa, ki aktyèlman estoke sa
ou D 'nan liy lan lòd.

1215
00:52:57,000 --> 00:52:59,960
Se konsa, nou gen sa yo.

1216
00:52:59,960 --> 00:53:02,850
Ou gen kèk koupe dot
kopi infile outfile.

1217
00:53:02,850 --> 00:53:06,670
Se konsa, si c ARG se nimewo a nan strings
ke nou ap pase nan yo lòd, ki

1218
00:53:06,670 --> 00:53:09,080
liy, ki sa ki ARG nou an c nan ka sa a?

1219
00:53:09,080 --> 00:53:14,520

1220
00:53:14,520 --> 00:53:15,850
Twa.

1221
00:53:15,850 --> 00:53:16,690
Egzakteman.

1222
00:53:16,690 --> 00:53:20,086
>> Se konsa, sa ki nan ARG v nan zewo?

1223
00:53:20,086 --> 00:53:21,710
Se konsa, sa ki nan premye bagay la nou te ki estoke?

1224
00:53:21,710 --> 00:53:24,640

1225
00:53:24,640 --> 00:53:26,290
Dot koupe kopi, egzakteman.

1226
00:53:26,290 --> 00:53:28,065
Lè sa a, dezyèm lan ta dwe infile.

1227
00:53:28,065 --> 00:53:29,290

1228
00:53:29,290 --> 00:53:30,930
Twazyèm lan ta dwe outfile.

1229
00:53:30,930 --> 00:53:32,390
Se konsa, sa ki sou ARG v twa?

1230
00:53:32,390 --> 00:53:35,810

1231
00:53:35,810 --> 00:53:39,370
Li ta nil, paske sa a, se
nan fen etalaj nou an, dwa?

1232
00:53:39,370 --> 00:53:40,600

1233
00:53:40,600 --> 00:53:41,460
Fre.

1234
00:53:41,460 --> 00:53:44,500
>> Lè sa a, sa ki sou yon sèl nan sizyèm?

1235
00:53:44,500 --> 00:53:45,900
Li nan kalite yon kesyon Trick.

1236
00:53:45,900 --> 00:53:46,400
Ich.

1237
00:53:46,400 --> 00:53:49,027

1238
00:53:49,027 --> 00:53:49,943
nou konnen sa li ye?

1239
00:53:49,943 --> 00:53:50,960

1240
00:53:50,960 --> 00:53:51,690
Li nan endefini.

1241
00:53:51,690 --> 00:53:53,170
Nou pa gen okenn lide ki sa ki te kapab.

1242
00:53:53,170 --> 00:53:57,000
Li nan tou sa ki dwat
apre etalaj la nan memwa,

1243
00:53:57,000 --> 00:54:00,220
epi nou pa gen okenn siy ki sa ki se.

1244
00:54:00,220 --> 00:54:03,500
Lè li nan danjere nan manyen moun
bagay sa yo, paske pou tout ou konnen,

1245
00:54:03,500 --> 00:54:07,080
li nan kèk pati nan memwa ke ou
pa ta dwe gen aksè oswa nil.

1246
00:54:07,080 --> 00:54:09,000
Epi li ka fè bagay sa yo fou.

1247
00:54:09,000 --> 00:54:11,690
Yo rele li sou-Indexing
ou mare yo etalaj ou yo.

1248
00:54:11,690 --> 00:54:14,785
pa ale deyò avèk limit yo nan ou
etalaj, oswa move bagay ka rive.

1249
00:54:14,785 --> 00:54:16,274

1250
00:54:16,274 --> 00:54:18,940
Ou vini retounen lakay yo epi, tankou, lwa yo
nan fizik yo te detwi

1251
00:54:18,940 --> 00:54:19,481
oswa yon bagay.

1252
00:54:19,481 --> 00:54:21,021

1253
00:54:21,021 --> 00:54:21,520
Fre.

1254
00:54:21,520 --> 00:54:22,895
ki fè sans a tout moun?

1255
00:54:22,895 --> 00:54:23,810

1256
00:54:23,810 --> 00:54:25,025
Pa twò move.

1257
00:54:25,025 --> 00:54:28,926
>> Se konsa, kounye a, tout moun nan
pati pi renmen, revizyon pset.

1258
00:54:28,926 --> 00:54:29,426
Ye!

1259
00:54:29,426 --> 00:54:30,530

1260
00:54:30,530 --> 00:54:31,030
OK.

1261
00:54:31,030 --> 00:54:33,830
Se konsa, pou moun nan nou ki
pa te li espèk a pset,

1262
00:54:33,830 --> 00:54:36,790
w ap fè kèk vrèman
bagay fre ak chifreman.

1263
00:54:36,790 --> 00:54:39,360
W ap ale nan kreye yon ceasar
Kriptaj ak yon Vigenere kriptaj.

1264
00:54:39,360 --> 00:54:42,000

1265
00:54:42,000 --> 00:54:45,480
Ou ta dwe definitivman li nan
espèk yo wè ki jan moun travay.

1266
00:54:45,480 --> 00:54:49,650
Men, si w ap gen nenpòt ki pwoblèm sou
ki sa li ta dwe aktyèlman ap fè,

1267
00:54:49,650 --> 00:54:52,920
tanpri vini pale ak m ',
voye yon imèl ba m 'oswa tèks m'.

1268
00:54:52,920 --> 00:54:53,420
Mwen se alantou.

1269
00:54:53,420 --> 00:54:54,780

1270
00:54:54,780 --> 00:54:57,070
>> Se konsa, gen twa prensipal
bagay isit la ke nou

1271
00:54:57,070 --> 00:55:00,440
vle pale about-- jis kalite
nan yon ekstansyon pou konferans.

1272
00:55:00,440 --> 00:55:03,645
Bagay sa yo ke ou pa ta ka konnen
sou, sijesyon ak zouti itil.

1273
00:55:03,645 --> 00:55:05,520
Se konsa, nou ap ale nan fè yon
revizyon rapid nan ASCII,

1274
00:55:05,520 --> 00:55:10,420
paske sa k ap pase yo dwe Super
enpòtan pou kriptaj Vigenere la.

1275
00:55:10,420 --> 00:55:11,809

1276
00:55:11,809 --> 00:55:14,100
Nou pral konvèsyon nan
entrain liy lòd, ki

1277
00:55:14,100 --> 00:55:17,160
pral trè itil pou Seza tande kòz kriptaj.

1278
00:55:17,160 --> 00:55:18,133
Lè sa a, modulo.

1279
00:55:18,133 --> 00:55:20,220

1280
00:55:20,220 --> 00:55:21,210
Fre.

1281
00:55:21,210 --> 00:55:24,005
>> Se konsa, ASCII kat karaktè yo chif yo.

1282
00:55:24,005 --> 00:55:25,270

1283
00:55:25,270 --> 00:55:26,365
Sa se yon gwo tablo.

1284
00:55:26,365 --> 00:55:28,115
Ou ta dwe gen sa a
siye yon kote.

1285
00:55:28,115 --> 00:55:29,310

1286
00:55:29,310 --> 00:55:33,250
Ou pral vle li pou
premye ou mitan-tèm.

1287
00:55:33,250 --> 00:55:36,320
Mwen se trè asire w tout moun gen sa a
tablo sou fèy mitan-tèm yo.

1288
00:55:36,320 --> 00:55:37,810
Se konsa, aprann li.

1289
00:55:37,810 --> 00:55:38,410
Renmen li.

1290
00:55:38,410 --> 00:55:39,740
Kenbe li sou la men.

1291
00:55:39,740 --> 00:55:41,210
Li pral itil.

1292
00:55:41,210 --> 00:55:45,630
>> Apre sa, tout li se se yon kodaj
ki kat alfabetik, nimerik,

1293
00:55:45,630 --> 00:55:47,740
ak lòt karaktè
nimewo pou òdinatè nou yo.

1294
00:55:47,740 --> 00:55:49,947
Paske nan kou, nan la
fen, tout sa nou sere

1295
00:55:49,947 --> 00:55:52,030
ki pral jwenn konvèti
desann nan zero ak moun yo,

1296
00:55:52,030 --> 00:55:55,200
konsa nou bezwen kèk fason yo reprezante nan
tèks ak karaktè ke nou ap tout

1297
00:55:55,200 --> 00:55:59,105
itilize yo wè kòm kèk sòt de kantite.

1298
00:55:59,105 --> 00:56:00,370

1299
00:56:00,370 --> 00:56:05,880
>> Se konsa, jan nou wè isit la, nou gen
majuskul A, ki se dwa gen.

1300
00:56:05,880 --> 00:56:06,555
Li nan 65.

1301
00:56:06,555 --> 00:56:07,570

1302
00:56:07,570 --> 00:56:09,660
Ak miniskil A se 97.

1303
00:56:09,660 --> 00:56:13,170
Se konsa, ou kapab konnen out--
jan mwen te di pi bonè,

1304
00:56:13,170 --> 00:56:16,532
si ou te gen etalaj de miltip
strings, ki sa chak nan yo

1305
00:56:16,532 --> 00:56:17,490
gen yon Terminator nil.

1306
00:56:17,490 --> 00:56:18,480
Li ta yon espas.

1307
00:56:18,480 --> 00:56:22,581
Espas gen special-- pwòp li yo
Mwen bliye kote li se isit la.

1308
00:56:22,581 --> 00:56:23,080
Ah.

1309
00:56:23,080 --> 00:56:24,700
32 se espas ki la.

1310
00:56:24,700 --> 00:56:27,090
Se konsa, tout bagay kat nan li.

1311
00:56:27,090 --> 00:56:28,680

1312
00:56:28,680 --> 00:56:29,740
>> Se konsa, nou gen ASCII matematik.

1313
00:56:29,740 --> 00:56:31,080

1314
00:56:31,080 --> 00:56:34,290
Pro tip-- nan Vigenere a,
ou ta ka dwe tante

1315
00:56:34,290 --> 00:56:39,480
konvèti nimewo ou nan nonm antye yo,
men li la aktyèlman pi bon pratik

1316
00:56:39,480 --> 00:56:43,860
pou kapab sèvi ak nan
karaktè tankou sa a

1317
00:56:43,860 --> 00:56:45,820
lè w ap aktyèlman manipile yo.

1318
00:56:45,820 --> 00:56:48,950
Se konsa, si ou vle sèvi ak nimewo, ou kapab.

1319
00:56:48,950 --> 00:56:55,260
Men, yon pi bon fason, oswa yon fason ki
nou gen tandans renmen ou nèg fè li,

1320
00:56:55,260 --> 00:56:57,830
se fason sa a kote w ap
aktyèlman soustraksyon karaktè.

1321
00:56:57,830 --> 00:56:58,840

1322
00:56:58,840 --> 00:57:02,830
>> Se konsa, mwen vle ou nèg
kalite figi sa yo soti.

1323
00:57:02,830 --> 00:57:05,070
Poukisa nou pa ou eseye chak youn ak lòt?

1324
00:57:05,070 --> 00:57:07,580

1325
00:57:07,580 --> 00:57:09,830
Se konsa, fè yon sèl la an premye,
twazyèm yon sèl, ak yon sèl la senkyèm.

1326
00:57:09,830 --> 00:57:11,160

1327
00:57:11,160 --> 00:57:15,000
Paske mwen vle asire w ke nou pale
sou tout bagay nou bezwen pale sou.

1328
00:57:15,000 --> 00:57:17,410

1329
00:57:17,410 --> 00:57:20,259
Mwen jis pral di, youn nan la
bagay enpòtan to-- oh tann,

1330
00:57:20,259 --> 00:57:21,550
ou nèg pa gen pou wè yon sèl sa a.

1331
00:57:21,550 --> 00:57:23,710
OK konsa fè twa a an premye.

1332
00:57:23,710 --> 00:57:24,430
Se pou nou fè sa.

1333
00:57:24,430 --> 00:57:25,971
Paske nou gen pale sou modulo.

1334
00:57:25,971 --> 00:57:27,810

1335
00:57:27,810 --> 00:57:28,310
Mwen konnen.

1336
00:57:28,310 --> 00:57:28,851
Matematik se difisil.

1337
00:57:28,851 --> 00:57:29,870

1338
00:57:29,870 --> 00:57:30,980
Ou ka itilize yon kalkilatris.

1339
00:57:30,980 --> 00:57:31,580
Li nan OK.

1340
00:57:31,580 --> 00:57:37,464

1341
00:57:37,464 --> 00:57:40,380
Oswa rale moute yon tablo ASCII, paske
w ap pwobableman ale nan vle sa.

1342
00:57:40,380 --> 00:58:03,660

1343
00:58:03,660 --> 00:58:04,820
>> Fre.

1344
00:58:04,820 --> 00:58:07,960
Se konsa, mwen ap byen vit mache
ou nèg nan sa yo.

1345
00:58:07,960 --> 00:58:11,120
Se konsa, moun ki te tab ASCII rale moute?

1346
00:58:11,120 --> 00:58:15,645
Ki sa ki se nimerik nou an
Nimewo pou miniskil A?

1347
00:58:15,645 --> 00:58:16,270
ELÈV: Sèt.

1348
00:58:16,270 --> 00:58:19,420

1349
00:58:19,420 --> 00:58:24,550
>> ALLISON: Se konsa, miniskil A se
97 ak majuskul A se 65.

1350
00:58:24,550 --> 00:58:26,390
Se konsa, 97 mwens 65?

1351
00:58:26,390 --> 00:58:27,782

1352
00:58:27,782 --> 00:58:28,570
>> ODYANS: 32?

1353
00:58:28,570 --> 00:58:33,260

1354
00:58:33,260 --> 00:58:35,630
>> ALLISON: 62, yeah.

1355
00:58:35,630 --> 00:58:38,675
Se konsa, nan ka sa a, sa ki
li ta enprime soti?

1356
00:58:38,675 --> 00:58:40,360
Sa premye youn?

1357
00:58:40,360 --> 00:58:43,830
Si nou gen pousan d,
sa ki ta ki endike?

1358
00:58:43,830 --> 00:58:45,980

1359
00:58:45,980 --> 00:58:46,730
ELÈV: Yon nimewo.

1360
00:58:46,730 --> 00:58:48,604
ALLISON: Nou ap enprime
soti yon nimewo vrè.

1361
00:58:48,604 --> 00:58:50,770
Se konsa, nou ap aktyèlman pral
ekri ak lèt ​​detache soti 32 isit la.

1362
00:58:50,770 --> 00:58:56,360
Men, si sa a yo te pousan c,
32 ta ban nou yon espas.

1363
00:58:56,360 --> 00:58:57,700

1364
00:58:57,700 --> 00:59:01,670
Se konsa, konprann ke
karaktè ka enprime

1365
00:59:01,670 --> 00:59:06,140
tou de kòm nimewo ak kòm
karaktè yo reyèl

1366
00:59:06,140 --> 00:59:11,080
se reyèlman enpòtan, ak peye
atansyon a kalite yo reyèl

1367
00:59:11,080 --> 00:59:12,040
ke nou ap fè isit la.

1368
00:59:12,040 --> 00:59:14,520

1369
00:59:14,520 --> 00:59:15,020
Fre.

1370
00:59:15,020 --> 00:59:18,862
Se konsa, pou chak yon lòt nan sa yo,
kisa nou pral yo dwe enprime?

1371
00:59:18,862 --> 00:59:19,825
>> ELÈV: Yon karaktè.

1372
00:59:19,825 --> 00:59:20,830
>> ALLISON: Yon karaktè.

1373
00:59:20,830 --> 00:59:21,330
Fre.

1374
00:59:21,330 --> 00:59:24,260
Se konsa, si ou nèg vle konnen, ou
ka travay sa yo soti sou pwòp ou yo.

1375
00:59:24,260 --> 00:59:25,900
Si w ap gen pwoblèm, voye yon imèl ba m '.

1376
00:59:25,900 --> 00:59:28,950
Men, yonn nan dezyèm pral
enprime soti yon b miniskil.

1377
00:59:28,950 --> 00:59:32,910
Yon sèl nan twazyèm pral enprime soti yon
majuskul B. katriyèm youn nan pral enprime

1378
00:59:32,910 --> 00:59:36,410
soti yon majuskul C, ak nan
yon dènye pral yon miniskil A.

1379
00:59:36,410 --> 00:59:42,530
Ak dènye one-- a nou ap aktyèlman pral
jwenn nan ki sa sa pousan fou

1380
00:59:42,530 --> 00:59:45,020
siy menm vle di nan yon glisad koup.

1381
00:59:45,020 --> 00:59:46,667
Se konsa, eseye sa ki sou pwòp ou yo.

1382
00:59:46,667 --> 00:59:48,500
Si ou gen pwoblèm,
tanpri vini pale avè m '.

1383
00:59:48,500 --> 00:59:49,655

1384
00:59:49,655 --> 00:59:53,290
Si w ap tipikman nan Adams D sal,
ou pral pwobableman jwenn mwen alantou.

1385
00:59:53,290 --> 00:59:54,760

1386
00:59:54,760 --> 00:59:55,760
>> Se konsa, atwa.

1387
00:59:55,760 --> 00:59:59,660
Konbyen nan ou te wè sa a
fonksyon oswa tande pale de li nan tout?

1388
00:59:59,660 --> 01:00:00,380

1389
01:00:00,380 --> 01:00:00,880
Nenpòt moun ki?

1390
01:00:00,880 --> 01:00:02,100

1391
01:00:02,100 --> 01:00:02,600
Fre.

1392
01:00:02,600 --> 01:00:06,250
Se konsa, sa li aktyèlman vle di
pou se ASCII nonb antye relatif.

1393
01:00:06,250 --> 01:00:13,150
Se konsa, sa ou ka fè se, ak Seza,
pou moun ki li espèk a,

1394
01:00:13,150 --> 01:00:16,460
w ap ale nan fè Seza dot koupe
apre ou ekri pwogram ou an,

1395
01:00:16,460 --> 01:00:18,690
ak Lè sa a w ap ale nan
D 'kèk nimewo ke ou

1396
01:00:18,690 --> 01:00:24,780
vle programme mesaj sekrè ou a ak.

1397
01:00:24,780 --> 01:00:30,700
>> Men, si nou sonje, nan tout nou an
entrain yo estoke kòm strings.

1398
01:00:30,700 --> 01:00:31,390
Dwa?

1399
01:00:31,390 --> 01:00:35,160
Nou gen yon etalaj v ARG
ki se tout fisèl kalite.

1400
01:00:35,160 --> 01:00:37,870
Se konsa, si ou jis eseye
rale ke yon sèl, li ta

1401
01:00:37,870 --> 01:00:43,240
panse ke ke youn oswa kèlkeswa sa nimewo
ou te itilize se aktyèlman yon karaktè.

1402
01:00:43,240 --> 01:00:45,490
Se konsa, ou ap ale nan jwenn
kèk rezilta fou.

1403
01:00:45,490 --> 01:00:48,200
Se konsa, si ou aktyèlman vle
vire sa a nan yon nonb antye relatif

1404
01:00:48,200 --> 01:00:52,060
ke ou ka itilize yo manipile
pawòl ou oswa mesaj ou,

1405
01:00:52,060 --> 01:00:53,366
ou pral vle yo sèvi ak atwa.

1406
01:00:53,366 --> 01:00:56,320
atwa jis konvèti
fisèl ou a yon int.

1407
01:00:56,320 --> 01:01:04,530
>> Se konsa, si nou gen yon afè de 12, si nou rele
atwa sou 12, oswa kèlkeswa sa ki D 'se,

1408
01:01:04,530 --> 01:01:07,370
li pral aktyèlman retounen
ou nonb antye relatif la.

1409
01:01:07,370 --> 01:01:10,610
Pa pèsonaj la oswa fisèl la 12.

1410
01:01:10,610 --> 01:01:14,230
Ki, lè ou kòmanse
ajoute ke nan nimewo,

1411
01:01:14,230 --> 01:01:17,710
pral trè diferan,
paske fisèl la 12 se

1412
01:01:17,710 --> 01:01:21,210
kèk nimewo fou nan
ASCII, men nonb antye relatif la 12

1413
01:01:21,210 --> 01:01:23,390
se aktyèlman 12, ki se ki sa ou vle.

1414
01:01:23,390 --> 01:01:25,630
Se konsa, ou vle asire w ke yo sèvi ak atwa.

1415
01:01:25,630 --> 01:01:29,203
>> W ap ale nan vle sa a
nan Seza tande kòz, paske ou

1416
01:01:29,203 --> 01:01:32,520
bezwen int a apwovizyone pa la
itilizatè nan liy lan lòd.

1417
01:01:32,520 --> 01:01:35,230
Men, lè yo mete l 'nan yo lòd, ki
liy, li nan ki estoke kòm yon fisèl

1418
01:01:35,230 --> 01:01:35,813
yo kòmanse avèk yo.

1419
01:01:35,813 --> 01:01:36,950

1420
01:01:36,950 --> 01:01:38,210
ki fè sans?

1421
01:01:38,210 --> 01:01:40,590
Ou fè pa nesesèman
bezwen sa a pou Vigenere.

1422
01:01:40,590 --> 01:01:43,180
Avèk Vigenere, jan mwen te di
anvan, ou ta dwe eseye epi sèvi ak

1423
01:01:43,180 --> 01:01:46,600
ASCII matematik ki sanble pi plis tankou
sa a, kote ou ap aktyèlman

1424
01:01:46,600 --> 01:01:49,320
lè l sèvi avèk charaktèr yo ke nou ap ban nou.

1425
01:01:49,320 --> 01:01:50,970

1426
01:01:50,970 --> 01:01:51,470
Fre.

1427
01:01:51,470 --> 01:01:52,970

1428
01:01:52,970 --> 01:01:54,170
Tout moun bon a?

1429
01:01:54,170 --> 01:01:56,530

1430
01:01:56,530 --> 01:01:57,480
Awesome.

1431
01:01:57,480 --> 01:01:59,030
>> Se konsa, modulo.

1432
01:01:59,030 --> 01:02:01,950
Se konsa, sa si w ap bay
nimewo sa a gwo pou Seza tande kòz?

1433
01:02:01,950 --> 01:02:03,720

1434
01:02:03,720 --> 01:02:07,970
Ou gen ide sa a ki
si w ap nan Z epi w ap

1435
01:02:07,970 --> 01:02:11,020
bay yon nimewo de,
sa vle di ou need--

1436
01:02:11,020 --> 01:02:15,130
Z vin dezyèm nan
lèt apre tèt li, dwa?

1437
01:02:15,130 --> 01:02:20,800
Se konsa, ou bezwen yon jan kanmenm vlope toutotou,
ak modulo se yon fason a fè sa.

1438
01:02:20,800 --> 01:02:23,310
Se konsa, tout sa li fè se li
ba ou rès la

1439
01:02:23,310 --> 01:02:25,660
nan divizyon an nan la
premye nimewo pa, dezyèm lan.

1440
01:02:25,660 --> 01:02:28,660
Epi nou gen kèk egzanp
fè ki yon ti kras plis konkrè.

1441
01:02:28,660 --> 01:02:34,390
Men, fondamantalman, ou sèvi ak modulo lè ou
vle fè yon bagay vlope alantou.

1442
01:02:34,390 --> 01:02:36,950
>> Se konsa, si ou sèlman vle nan
nimewo yon sèl nan uit,

1443
01:02:36,950 --> 01:02:39,670
ou ka itilize sou nenpòt ki lòt modulo
nimewo, epi li pral toujou

1444
01:02:39,670 --> 01:02:42,960
retounen yon nimewo soti nan zewo rive uit.

1445
01:02:42,960 --> 01:02:48,750
Se konsa, kèk examples-- si
nou gen 55 modulo 10,

1446
01:02:48,750 --> 01:02:55,350
li jis ba ou rès la nan
55 divize pa 10, ki ta dwe 5.

1447
01:02:55,350 --> 01:02:56,440

1448
01:02:56,440 --> 01:03:02,470
Lè sa a, twa modulo senk,
nenpòt moun ki devine kisa ki ta dwe ye?

1449
01:03:02,470 --> 01:03:03,800

1450
01:03:03,800 --> 01:03:04,300
Twa.

1451
01:03:04,300 --> 01:03:05,570

1452
01:03:05,570 --> 01:03:10,910
>> Se konsa, si ou gen yon nimewo ki pi piti anvan
modulo a, li pa ka ale nan respire.

1453
01:03:10,910 --> 01:03:11,520
Li nan zewo.

1454
01:03:11,520 --> 01:03:14,090
Se konsa, li jis retounen nimewo a tèt li.

1455
01:03:14,090 --> 01:03:15,920
Se konsa, uit modulo uit ta dwe?

1456
01:03:15,920 --> 01:03:16,603
>> ELÈV: Zewo.

1457
01:03:16,603 --> 01:03:18,350
>> ALLISON: Zewo.

1458
01:03:18,350 --> 01:03:20,160
Paske li ale nan respire.

1459
01:03:20,160 --> 01:03:22,095
16 modulo 15?

1460
01:03:22,095 --> 01:03:23,660
>> ODYANS: Yon.

1461
01:03:23,660 --> 01:03:24,700
>> ALLISON: Cool.

1462
01:03:24,700 --> 01:03:29,280
Lè sa a, yon sèl sa a pase a se jis yo
montre you-- ou ka mande, OK,

1463
01:03:29,280 --> 01:03:31,800
sa ki nan lòd operasyon isit la?

1464
01:03:31,800 --> 01:03:33,100
Èske nou divize an premye?

1465
01:03:33,100 --> 01:03:34,570
Èske nou modulo premye?

1466
01:03:34,570 --> 01:03:38,730
Se konsa, modulo kenbe menm priyorite a
kòm divizyon oswa miltiplikasyon,

1467
01:03:38,730 --> 01:03:39,940
ak asosyatif gòch li yo.

1468
01:03:39,940 --> 01:03:41,730
Se konsa, li nan menm fason an.

1469
01:03:41,730 --> 01:03:46,520
Ou ta toujou fè parantèz,
Lè sa a, miltiplikasyon, divizyon,

1470
01:03:46,520 --> 01:03:49,570
ak modulo yo nan lòd de gòch a dwat.

1471
01:03:49,570 --> 01:03:51,050
Se konsa, estanda règ yo.

1472
01:03:51,050 --> 01:03:55,260
Jis mete l 'nan kategori a menm
kòm divizyon ak miltiplikasyon.

1473
01:03:55,260 --> 01:03:59,040
>> Se konsa, nan ka sa a, nou ta
gen 1 plis 2 ban nou 3.

1474
01:03:59,040 --> 01:04:02,210
Nou anpil anpil pitit ki pa 2, se konsa nou jwenn 6.

1475
01:04:02,210 --> 01:04:05,050
Nou modulo ki pa 2, ki ba nou?

1476
01:04:05,050 --> 01:04:06,042
>> ELÈV: 0.

1477
01:04:06,042 --> 01:04:07,430
>> ALLISON: 0.

1478
01:04:07,430 --> 01:04:10,270
Lè sa a, nou ajoute 2, se konsa nou
jwenn 2 nan ka sa a pase.

1479
01:04:10,270 --> 01:04:12,080

1480
01:04:12,080 --> 01:04:16,360
Se konsa, w ap modulo-- definitivman pral
dwe panse sou fason yo entegre

1481
01:04:16,360 --> 01:04:19,520
ke lè w ap vlope
alantou alfabè a.

1482
01:04:19,520 --> 01:04:24,210
Si w ap nan Z epi ou bezwen pou avanse pou pi
voye twa espas pou li ale nan C,

1483
01:04:24,210 --> 01:04:26,230
gen nan ke konsèp an antye
nan vlope alantou.

1484
01:04:26,230 --> 01:04:28,790
Se konsa, mwen pral kite li nan
ou nèg yo konnen

1485
01:04:28,790 --> 01:04:31,940
ki jan egzakteman w ap ale nan dwe lè l sèvi avèk li.

1486
01:04:31,940 --> 01:04:35,660
Men, definitivman yon zouti itil
pou pset ou semèn sa a.

1487
01:04:35,660 --> 01:04:36,910

1488
01:04:36,910 --> 01:04:37,730
Mwen vrèman renmen sa a.

1489
01:04:37,730 --> 01:04:39,480
Sa se youn nan pi renmen m 'psets.

1490
01:04:39,480 --> 01:04:41,230
Lè sa a, apre ou fin fè li,
si ou gen zanmi,

1491
01:04:41,230 --> 01:04:44,146
ou ka, tankou, voye chak sekrè lòt
mesaj, epi fè sèten li fonksyone.

1492
01:04:44,146 --> 01:04:45,695
Paske li pral dechifre li oswa kèlkeswa sa.

1493
01:04:45,695 --> 01:04:46,710

1494
01:04:46,710 --> 01:04:47,390
Anpil plezi.

1495
01:04:47,390 --> 01:04:48,840

1496
01:04:48,840 --> 01:04:51,220
>> E ke se nan fen seksyon.

1497
01:04:51,220 --> 01:04:52,430

1498
01:04:52,430 --> 01:04:54,040
Mwen fini bonè.

1499
01:04:54,040 --> 01:04:57,540
Mwen toujou gen 15 minit ak
ou nèg, se konsa si gen nan anyen

1500
01:04:57,540 --> 01:05:02,180
ke ou ta renmen ale sou
pi lwen, mwen ta gen kè kontan yo fè sa.

1501
01:05:02,180 --> 01:05:04,340
Nenpòt lòt kesyon sou
pset ou pou moun nan nou

1502
01:05:04,340 --> 01:05:06,355
ki moun ki te kòmanse oswa li espèk a.

1503
01:05:06,355 --> 01:05:07,870

1504
01:05:07,870 --> 01:05:12,060
Nenpòt bagay ki nou te pale
sou nan dènye zè yo

1505
01:05:12,060 --> 01:05:16,880
ak 15 minit ke ou ta renmen m '
kalite rearanje, mwen ta gen kè kontan yo.

1506
01:05:16,880 --> 01:05:20,790
Oswa nou ka rele li kit, epi ou ka
tout kite ak pran plis sirèt avèk ou

1507
01:05:20,790 --> 01:05:21,650
jan ou ale.

1508
01:05:21,650 --> 01:05:23,719

1509
01:05:23,719 --> 01:05:26,260
Men, si gen nenpòt ki pèsistan
kesyon, tanpri kite m 'konnen.

1510
01:05:26,260 --> 01:05:28,467
Ou kapab tou vini ak
pale ak m 'apre sa.

1511
01:05:28,467 --> 01:05:29,425
Mwen te pwomèt mwen pa mòde.

1512
01:05:29,425 --> 01:05:32,140

1513
01:05:32,140 --> 01:05:32,795
Nenpòt lòt bagay?

1514
01:05:32,795 --> 01:05:33,890

1515
01:05:33,890 --> 01:05:35,240
Tout moun nan bon?

1516
01:05:35,240 --> 01:05:37,540
Santi Tout moun nan tankou
yo ka okipe sa a pset?

1517
01:05:37,540 --> 01:05:38,820

1518
01:05:38,820 --> 01:05:42,405
W ap ale nan gen nèg amann.

1519
01:05:42,405 --> 01:05:43,905
Biwo èdtan ki genyen pou yon rezon.

1520
01:05:43,905 --> 01:05:45,930

1521
01:05:45,930 --> 01:05:46,460
Fre.

1522
01:05:46,460 --> 01:05:47,020
Byen.

1523
01:05:47,020 --> 01:05:49,680
>> Oke, nan ka sa a, mèsi
nou tout anpil pou vini yo.

1524
01:05:49,680 --> 01:05:50,940
Mwen espere wè ou an semèn pwochèn.

1525
01:05:50,940 --> 01:05:52,120
Va gen plis sirèt.

1526
01:05:52,120 --> 01:05:53,495
Ke ka gen lòt bagay fre.

1527
01:05:53,495 --> 01:05:55,010

1528
01:05:55,010 --> 01:05:59,090
Apre sa, mwen gade pou pi devan nan ap resevwa
yo konnen nou tout ki ane sa a.

1529
01:05:59,090 --> 01:06:00,320