1 00:00:00,000 --> 00:00:00,890 2 00:00:00,890 --> 00:00:03,835 >> [Jwe mizik] 3 00:00:03,835 --> 00:00:10,597 4 00:00:10,597 --> 00:00:12,030 >> Oratè 1: Tout dwa, tout moun. 5 00:00:12,030 --> 00:00:14,330 Byenveni nan dènye seksyon ou avè m '. 6 00:00:14,330 --> 00:00:16,160 Li te byen semès la. 7 00:00:16,160 --> 00:00:21,290 Mwen pa ka kwè sa a se, tankou, semèn 12 oswa 11, yon bagay tankou sa. 8 00:00:21,290 --> 00:00:24,520 Men, paske li nan dènye nou an seksyon, nou gen anpil bagay nan sirèt. 9 00:00:24,520 --> 00:00:27,090 Men, mwen pral eseye ak preparasyon ou kòm byen ke mwen 10 00:00:27,090 --> 00:00:30,270 kapab pou egzamen ou nan Mèkredi. 11 00:00:30,270 --> 00:00:34,060 Se konsa, pwobableman pa pi bon fason yo, tankou, fen seksyon ak revizyon egzamen. 12 00:00:34,060 --> 00:00:35,630 Men, nou pral eseye, epi fè li plezi. 13 00:00:35,630 --> 00:00:36,720 Apre sa, nan toujou sirèt. 14 00:00:36,720 --> 00:00:39,070 Se konsa, èspere ke, ki pral fè li pi byen. 15 00:00:39,070 --> 00:00:43,800 >> Egzamen ou a pral yo dwe trè anpil menm bagay la kòm egzamen zewo. 16 00:00:43,800 --> 00:00:46,840 Li nan pral fè a fòma menm, menm longè. 17 00:00:46,840 --> 00:00:50,065 Ou pral nan chanm yo gaye toupatou atravè lakou lekòl la, paske gen 18 00:00:50,065 --> 00:00:54,660 yo se fèmen nan 900 nan nou, epi nou pa kapab tout kenbe ou nan chanm tankou sa a. 19 00:00:54,660 --> 00:00:58,610 Se konsa, asire w ke ou gade nan tout nan Kwiz Youn dokiman an 20 00:00:58,610 --> 00:01:02,410 sou entènèt la nan cs50.harvard.edu aswè a oswa demen swa. 21 00:01:02,410 --> 00:01:06,070 Asire ou ke ou konnen ki kote w ap prale a, ki sa ou bezwen pote. 22 00:01:06,070 --> 00:01:10,052 Vrèman, ou jis bezwen pote tèt ou ak yon kreyon, epi ou ta dwe amann. 23 00:01:10,052 --> 00:01:11,760 Kesyon yo poze yo pral anpil menm bagay la. 24 00:01:11,760 --> 00:01:15,250 Gen ap pwobableman ap yon koup repons ochwa yo, yon koup kout repons, 25 00:01:15,250 --> 00:01:22,610 kèk kodaj, petèt kèk vre / fo, matche kalite bagay sa yo. 26 00:01:22,610 --> 00:01:27,790 Se konsa, ou pa ta dwe twò etone pou fòma a. 27 00:01:27,790 --> 00:01:31,380 >> Kisa ki ka etone se nan longè, ki, nan ane anvan, 28 00:01:31,380 --> 00:01:32,970 te pi lontan ankò. 29 00:01:32,970 --> 00:01:38,060 Nan ane m 'yo, mwen pa gen yon zanmi sèl ke mwen sonje fini egzamen an. 30 00:01:38,060 --> 00:01:41,100 Te gen tankou miltip Paj rete vid. 31 00:01:41,100 --> 00:01:43,710 Se konsa, longè a ka kalite disorienting 32 00:01:43,710 --> 00:01:47,554 jis paske nan kèk ane, li gen te pi lontan ankò pase egzamen Youn. 33 00:01:47,554 --> 00:01:49,720 Mwen pa gen okenn lide ki sa li la pral fè tankou ane sa a, 34 00:01:49,720 --> 00:01:51,640 men li la yon bagay yo dwe okouran de. 35 00:01:51,640 --> 00:01:53,390 >> Anplis de sa, nan moun yo gen tandans difficulty-- 36 00:01:53,390 --> 00:01:56,660 jwenn egzamen Youn pi plis difisil pase egzamen zewo. 37 00:01:56,660 --> 00:01:58,590 Yon fwa ankò, ou konnen, si w ap kalite ap mache 38 00:01:58,590 --> 00:02:01,590 soti santi yon ti kras alèz paske ou pa t 'fè kòm byen ke ou te panse 39 00:02:01,590 --> 00:02:04,430 ou ta oswa ou santi ou tankou ou pa t ' fè kòm byen ke ou te fè sou egzamen Youn, 40 00:02:04,430 --> 00:02:07,429 sonje ke gen yo se pwobableman yon anpil nan lòt moun santi ke fason. 41 00:02:07,429 --> 00:02:09,800 Mwen te definitivman youn nan moun sa yo. 42 00:02:09,800 --> 00:02:11,770 Kwiz yon sèl, tankou, jete m 'pou yon riban. 43 00:02:11,770 --> 00:02:14,540 Ak zanmi m 'gen sa a gwo foto nan yo nan JP lik 44 00:02:14,540 --> 00:02:17,834 kalite ak sa yo gwo sundaes, yo te tankou, egzamen Youn, 45 00:02:17,834 --> 00:02:19,250 ak kap tankou yo ap nan dlo nan je. 46 00:02:19,250 --> 00:02:21,860 >> Se konsa, li yon santiman jeneral. 47 00:02:21,860 --> 00:02:25,257 Li se yon egzamen difisil, li nan yon egzamen difisil. 48 00:02:25,257 --> 00:02:28,340 Li evidan, si ou soti epi ou santi tankou ou lanse li, gwo pou ou. 49 00:02:28,340 --> 00:02:32,050 Men, konnen ke w ap pwobableman not-- ou se prèske pi definitivman pa 50 00:02:32,050 --> 00:02:36,020 pou kont li si ou mache soti santi tankou, eh, pwobableman te kapab yo vin miyò. 51 00:02:36,020 --> 00:02:37,003 Li nan difisil. 52 00:02:37,003 --> 00:02:37,503 Milimèt-HM. 53 00:02:37,503 --> 00:02:39,120 >> ODYANS: Konbyen se li vo nan relasyon ak yon [fèbl]? 54 00:02:39,120 --> 00:02:40,411 >> Oratè 1: Li nan vo menm bagay la. 55 00:02:40,411 --> 00:02:41,730 Yeah. 56 00:02:41,730 --> 00:02:45,150 Men, ankò, li la tou pral fè afekte pa ki jan rès la nan klas la 57 00:02:45,150 --> 00:02:48,766 fè sa, ki jan ou fè seksyon, ki jan ou te amelyore sou tan. 58 00:02:48,766 --> 00:02:50,390 Koreksyon se yon ti kras nan yon bwat nwa. 59 00:02:50,390 --> 00:02:54,310 Se konsa, sa kantite aktyèl la oswa pousantaj ou jwenn 60 00:02:54,310 --> 00:02:56,790 se pa nesesèman renmen dirèkteman Koehle ak klas ki 61 00:02:56,790 --> 00:02:57,790 w ap ale nan jwenn. 62 00:02:57,790 --> 00:03:00,210 Genyen yon anpil nan faktè ki ale nan li. 63 00:03:00,210 --> 00:03:04,090 >> Se konsa, avèk sa, nou ap ale nan ale nan kèk revizyon egzamen. 64 00:03:04,090 --> 00:03:07,600 Mwen jis ale nan kouri sa a tankou dènye fwa pou ou guys. 65 00:03:07,600 --> 00:03:10,960 Mwen gen tout repons yo egzamen Youn nan dènye ane yo. 66 00:03:10,960 --> 00:03:14,260 Se konsa, si ou nèg vle rale ki moute sou òdinatè pwòp ou a, 67 00:03:14,260 --> 00:03:18,100 si ou te pran egzamen sa a anvan epi ou gen kesyon, 68 00:03:18,100 --> 00:03:20,090 Mwen te panse nou te kapab jis ale nan kèk 69 00:03:20,090 --> 00:03:22,380 nan yo menm ki pi difisil sou sa. 70 00:03:22,380 --> 00:03:25,810 Se konsa, nou ka pale sou li, petèt jwenn yon ti kras pi plis insight 71 00:03:25,810 --> 00:03:29,260 nan entwisyon nan dèyè kèk nan kesyon sa yo, ki jan yo apwòch yo. 72 00:03:29,260 --> 00:03:34,420 >> Osi byen, tankou dènye fwa, Mwen gen yon pil 100-glise 73 00:03:34,420 --> 00:03:37,760 ki gen fondamantalman tout nan glisad yo ke mwen 74 00:03:37,760 --> 00:03:40,360 te pare pou anvan yo seksyon depi dènye ou mwen quiz-- 75 00:03:40,360 --> 00:03:41,540 gen nan pil sa a. 76 00:03:41,540 --> 00:03:43,960 Se konsa, nou ka ale nan anyen bèl anpil 77 00:03:43,960 --> 00:03:46,450 ke nou te pale osijè de davans ke petèt ou 78 00:03:46,450 --> 00:03:49,130 vle yon ti kras pi plis klarifikasyon sou. 79 00:03:49,130 --> 00:03:50,320 Nou te ka fè sa an premye. 80 00:03:50,320 --> 00:03:52,567 >> Men, otreman, mwen super kè kontan jis yo kalite travay 81 00:03:52,567 --> 00:03:53,900 nan pwoblèm sa yo avèk ou. 82 00:03:53,900 --> 00:03:58,700 Apre sa, mwen se vrèman la a yo konsantre sou sa ou nèg panse 83 00:03:58,700 --> 00:04:01,466 ta dwe pi enpòtan yo konsantre sou. 84 00:04:01,466 --> 00:04:03,466 Tankou, evidamman, nan tout bagay sa a se enpòtan. 85 00:04:03,466 --> 00:04:07,444 86 00:04:07,444 --> 00:04:10,610 Espesyalman kòm nou ale nan egzamen Youn, Mwen pral definitivman pwen soti bagay sa yo tankou, 87 00:04:10,610 --> 00:04:13,380 oh, sa a ta kapab yon bagay ou reyèlman vle konnen 88 00:04:13,380 --> 00:04:15,170 oswa ou vle gen sou fèy twonpe ou. 89 00:04:15,170 --> 00:04:18,100 Mwen pral di ou bagay sa yo jan nou kalite ale nan. 90 00:04:18,100 --> 00:04:22,079 >> Se konsa, sou ki nòt, yo gen nenpòt bagay ke ou nèg ta renmen ale sou? 91 00:04:22,079 --> 00:04:26,050 Epitou, si mwen pa genyen li nan pil m 'yo, nou ka rale moute yon bagay sou entènèt la, 92 00:04:26,050 --> 00:04:28,340 oubyen nou ka eseye, epi fè moute yon egzanp sou vole a. 93 00:04:28,340 --> 00:04:32,756 Men, nenpòt konsèp ke ou nèg yo se yon ti kras mou sou. 94 00:04:32,756 --> 00:04:33,880 [? Brian,?] Ou te have-- 95 00:04:33,880 --> 00:04:36,134 >> ODYANS: Oh, se li kimilatif? 96 00:04:36,134 --> 00:04:38,300 Tankou, se bagay la sou egzamen Zewo pral fè sou isit la? 97 00:04:38,300 --> 00:04:41,100 >> Oratè 1: Li nan kimilatif, men li la pi plis 98 00:04:41,100 --> 00:04:44,330 nan yon anfaz sou bagay depi dènye egzamen ou yo. 99 00:04:44,330 --> 00:04:48,410 Se konsa, evidamman, ou nèg gen te aprann enfòmasyon sou varyab, ak pasan, 100 00:04:48,410 --> 00:04:49,380 ak kondisyonal. 101 00:04:49,380 --> 00:04:52,030 Epi li pa nan renmen moun jis ale, paske yo ap 102 00:04:52,030 --> 00:04:55,210 evidamman nannan nan tout bagay lòt bagay ki nou te aprann kounye a. 103 00:04:55,210 --> 00:04:58,560 104 00:04:58,560 --> 00:05:01,260 >> Gen ta kapab yon kesyon sou kalite yo, oswa gen 105 00:05:01,260 --> 00:05:03,710 ta kapab yon kesyon sou rechèch diferan. 106 00:05:03,710 --> 00:05:07,000 Oswa ka gen yon koup kesyon sou petèt yon bagay ou 107 00:05:07,000 --> 00:05:09,230 ki gen fè ak konpile oswa erè diferan. 108 00:05:09,230 --> 00:05:12,360 Men, si ou te gade Kwiz Youn nan ane pase a, 109 00:05:12,360 --> 00:05:15,870 ou pral avi ke li se anpil konsantre sou bagay sa yo 110 00:05:15,870 --> 00:05:18,710 ki te rive depi dènye egzamen ou yo. 111 00:05:18,710 --> 00:05:20,270 >> Poukisa se ke pòt toujou fèmen? 112 00:05:20,270 --> 00:05:21,555 Li reyèlman nwi mwen. 113 00:05:21,555 --> 00:05:25,310 Paske mwen toujou eseye yo ale nan li. 114 00:05:25,310 --> 00:05:28,450 >> Se konsa, sa a, se bèl anpil ki jan egzamen an pral. 115 00:05:28,450 --> 00:05:32,360 Se konsa, yo gen nenpòt konsèp ki ou nèg ta renmen ale sou? 116 00:05:32,360 --> 00:05:35,210 Oswa nou ka sote dwat nan jis gade nan egzamen Youn 117 00:05:35,210 --> 00:05:39,570 soti nan ane pase ak kalite pral nan kesyon pratik la. 118 00:05:39,570 --> 00:05:41,220 Nou kapab tou chanje retounen ak lide. 119 00:05:41,220 --> 00:05:43,130 Sa a se pa yon sòt yon sèl-fwa de bagay sa. 120 00:05:43,130 --> 00:05:46,367 121 00:05:46,367 --> 00:05:46,950 Nenpòt kesyon? 122 00:05:46,950 --> 00:05:49,688 123 00:05:49,688 --> 00:05:50,188 Wi. 124 00:05:50,188 --> 00:05:51,950 >> ODYANS: Èske mwen mande yon kesyon sou another-- 125 00:05:51,950 --> 00:05:52,950 >> Oratè 1: Yon lòt yon sèl? 126 00:05:52,950 --> 00:05:54,500 >> ODYANS: Sa a se soti nan yon lòt ane. 127 00:05:54,500 --> 00:05:54,756 >> Oratè 1: Yeah. 128 00:05:54,756 --> 00:05:56,068 Nou kapab tou fè yon lòt ane. 129 00:05:56,068 --> 00:05:57,820 >> ODYANS: OK. 130 00:05:57,820 --> 00:05:58,710 Se konsa, sou 2011. 131 00:05:58,710 --> 00:06:00,135 >> Oratè 1: 2011. 132 00:06:00,135 --> 00:06:02,880 Ooh, sa ki te ane a anvan m '. 133 00:06:02,880 --> 00:06:04,032 Kite m 'rale sa a leve. 134 00:06:04,032 --> 00:06:04,934 >> ODYANS: Mwen panse ke. 135 00:06:04,934 --> 00:06:07,920 136 00:06:07,920 --> 00:06:12,842 >> Oratè 1: Aspè sa a rapò se voye m 'la. 137 00:06:12,842 --> 00:06:14,435 >> ODYANS: 11 ak 12. 138 00:06:14,435 --> 00:06:16,637 >> Oratè 1: 11 ak 12. 139 00:06:16,637 --> 00:06:17,415 OK. 140 00:06:17,415 --> 00:06:18,790 Oke, isit la, poukisa pa nou fè sa? 141 00:06:18,790 --> 00:06:22,390 Ou guys-- tout moun jis pran yon koup nan minit yo gade atravè ti tès. 142 00:06:22,390 --> 00:06:23,759 Epitou, n ap konpile yon lis. 143 00:06:23,759 --> 00:06:25,050 Lè sa a, nou pral ale nan yo. 144 00:06:25,050 --> 00:06:25,990 Tout dwa? 145 00:06:25,990 --> 00:06:28,530 Pandan ke mwen jwenn yon pakèt moun nan bagay sa a fè fè a. 146 00:06:28,530 --> 00:06:29,440 OK. 147 00:06:29,440 --> 00:06:31,850 Mwen jis ale nan ekri bagay sa yo desann sou papye. 148 00:06:31,850 --> 00:06:47,460 149 00:06:47,460 --> 00:07:36,009 >> 2011, 11 ak 12? 150 00:07:36,009 --> 00:07:38,880 Mwen jis ale nan chanje ekspozisyon sa a. 151 00:07:38,880 --> 00:07:39,380 OK. 152 00:07:39,380 --> 00:07:40,320 Sa a pi byen. 153 00:07:40,320 --> 00:07:45,490 154 00:07:45,490 --> 00:07:47,700 Sa a sou. 155 00:07:47,700 --> 00:08:04,632 156 00:08:04,632 --> 00:08:06,130 Tout dwa. 157 00:08:06,130 --> 00:08:08,590 >> Nenpòt lòt moun gen nenpòt ki yo ta renmen kòmanse ak? 158 00:08:08,590 --> 00:08:11,270 159 00:08:11,270 --> 00:08:20,360 Epitou, bliye di, si ou vle plis nan yon pakèt moun sou moun ap pale nan ou 160 00:08:20,360 --> 00:08:23,182 ak jis ban nou yon krak kou nan sis semèn ki sot pase yo, 161 00:08:23,182 --> 00:08:24,890 nou ap kouri yon revizyon sesyon soti nan 7:00 162 00:08:24,890 --> 00:08:29,580 8:30 aswè a nan Nòdwès B103, ki tou te pase 163 00:08:29,580 --> 00:08:34,219 dènye fwa, kote li k ap pase yo gen m ', Ana, Daven, ak Gabe 164 00:08:34,219 --> 00:08:38,799 ak Rob kalite ede soti nan la bò liy nan jis kalite voye tout 165 00:08:38,799 --> 00:08:41,630 enfòmasyon nan ke ou ta ka vle gen sou fèy twonpe ou, 166 00:08:41,630 --> 00:08:43,101 koupe, konnen an jeneral la. 167 00:08:43,101 --> 00:08:44,600 ODYANS: Sa a tou sou entènèt, dwa? 168 00:08:44,600 --> 00:08:45,766 Oratè 1: Li la tou sou entènèt. 169 00:08:45,766 --> 00:08:48,500 Se konsa, ou ka tou rete soti nan sa a move tan icky, ale nan dòtwa ou, 170 00:08:48,500 --> 00:08:50,620 ak ap viv-kouran li si ou ta renmen. 171 00:08:50,620 --> 00:08:52,420 Mwen si ke yon anpil nan people-- Mwen konnen mwen ta 172 00:08:52,420 --> 00:08:55,541 gen fè sa si m 'te nan soulye ou yo. 173 00:08:55,541 --> 00:08:56,040 OK. 174 00:08:56,040 --> 00:08:59,152 Se konsa, poukisa pa nou kòmanse with-- pandan w ap guys-- èspere ke, 175 00:08:59,152 --> 00:09:00,110 w ap chèche a. 176 00:09:00,110 --> 00:09:03,068 Si ou pa, mwen ta ka jis kòmanse travay nan bagay sa yo diferan sou egzamen Youn 177 00:09:03,068 --> 00:09:05,490 soti nan ane pase sof si ou gen kesyon espesifik. 178 00:09:05,490 --> 00:09:09,740 >> Nou pral kòmanse ak sa a kesyon isit la sou pil. 179 00:09:09,740 --> 00:09:17,940 Se konsa, tout moun sonje kalite ki sa yon chemine se? 180 00:09:17,940 --> 00:09:21,760 Ki jan nou yo gen tandans to-- ka nenpòt moun ki jis bay m 'yon deskripsyon jeneral nan yon pil? 181 00:09:21,760 --> 00:09:23,300 Yon kalite estrikti done. 182 00:09:23,300 --> 00:09:23,900 OK. 183 00:09:23,900 --> 00:09:25,650 Se konsa, li nan youn nan la estrikti done ke nou 184 00:09:25,650 --> 00:09:30,620 espere ou yo dwe abitye with-- tankou pil, ranje, ke moun kap kriye, pou fè. 185 00:09:30,620 --> 00:09:31,120 Wi. 186 00:09:31,120 --> 00:09:33,005 >> ODYANS: Tankou Premye Nan, Siyati Out, yon bagay. 187 00:09:33,005 --> 00:09:34,810 >> Oratè 1: Li nan premye nan, pase soti. 188 00:09:34,810 --> 00:09:35,310 Egzakteman. 189 00:09:35,310 --> 00:09:37,830 Se konsa, yon pil se egzakteman ki sa nou gen tandans panse 190 00:09:37,830 --> 00:09:39,720 sou lè nou panse nan yon pil nan bagay sa yo. 191 00:09:39,720 --> 00:09:41,024 Se konsa, yon pil nan plak. 192 00:09:41,024 --> 00:09:43,440 Plak la premye ou mete desann ki pral yo dwe nan pati anba a, 193 00:09:43,440 --> 00:09:45,981 epi li nan pral fè dènye a yon sèl ke ou retire nan fen an. 194 00:09:45,981 --> 00:09:47,180 Paske yo pile. 195 00:09:47,180 --> 00:09:50,390 >> Epi ou pran yon sèl la soti nan pati anba a, tipikman, bagay sa yo aksidan epi kase. 196 00:09:50,390 --> 00:09:53,150 Se konsa, pil ou ka panse a jis tankou yon pil nan plak. 197 00:09:53,150 --> 00:09:57,707 Oswa egzanp lan nou toujou renmen itilize se nan koulwa yo D, ou gen plato yo, 198 00:09:57,707 --> 00:09:59,790 yo tout ap anpile moute, epi ou pran nan tèt la. 199 00:09:59,790 --> 00:10:02,880 Se konsa, youn nan dènye nan se premye yon sèl soti nan. 200 00:10:02,880 --> 00:10:03,580 OK. 201 00:10:03,580 --> 00:10:08,850 >> Se konsa, nan ka a isit la, nou wè nou en-mwen mande 202 00:10:08,850 --> 00:10:14,050 si mwen ka aktyèlman rale nan yon ti kras. 203 00:10:14,050 --> 00:10:15,730 Se konsa, nou gen sa a struct isit la. 204 00:10:15,730 --> 00:10:16,520 Dwa? 205 00:10:16,520 --> 00:10:20,160 Se konsa, ou gen kèk struct ki gen kèk Int nimewo nan kapasite. 206 00:10:20,160 --> 00:10:22,960 Se konsa, sa nou panse ki reprezante? 207 00:10:22,960 --> 00:10:26,190 Sa a se yon etalaj ak gwosè kapasite. 208 00:10:26,190 --> 00:10:31,750 >> Se konsa, sa a vrèman reprezante chemine nou an an jeneral. 209 00:10:31,750 --> 00:10:35,980 Chemine nou an se vrèman jis yon etalaj ak kèk nimewo seri 210 00:10:35,980 --> 00:10:39,040 ki se max li yo, se sa ki, kapasite li yo. 211 00:10:39,040 --> 00:10:43,050 Lè sa a, nou gen kèk gwosè int, ki pral swiv gwosè a nan chemine nou an 212 00:10:43,050 --> 00:10:44,990 nan tout kou a nan lè nou ap lè l sèvi avèk li. 213 00:10:44,990 --> 00:10:45,490 OK? 214 00:10:45,490 --> 00:10:50,620 215 00:10:50,620 --> 00:10:55,850 >> Nan ka sa a dwa isit la, nou di ke nou an te gwosè chemine te inisyalizèd a 0. 216 00:10:55,850 --> 00:10:58,190 Se konsa, nou gen yon chemine vid kounye a. 217 00:10:58,190 --> 00:11:01,760 Lè sa a, nou vle ranpli aplikasyon an nan pòp 218 00:11:01,760 --> 00:11:05,520 tankou ke li retounen Int la nan tèt la. 219 00:11:05,520 --> 00:11:08,150 Lè sa a, si li nan vid, li retounen negatif 1. 220 00:11:08,150 --> 00:11:09,320 OK? 221 00:11:09,320 --> 00:11:12,646 Se konsa, mwen vle ou nèg jis panse sou sa nou ta ka fè a. 222 00:11:12,646 --> 00:11:15,020 Ki sa ki ta dwe youn nan premye a bagay nou ta vle yo tcheke? 223 00:11:15,020 --> 00:11:17,986 224 00:11:17,986 --> 00:11:19,110 Genyen yon gwo bagay isit la. 225 00:11:19,110 --> 00:11:24,700 Chak fwa li says-- si gen nan tout tan tout tan gen kèk Si deklarasyon, tankou "Si chemine a vid," 226 00:11:24,700 --> 00:11:29,330 oswa "Si sa a retounen nil," oswa "Si sa a se tou sa" - regrèt. 227 00:11:29,330 --> 00:11:30,710 >> ODYANS: Ekri yon deklarasyon Si. 228 00:11:30,710 --> 00:11:31,000 >> Oratè 1: Dwa. 229 00:11:31,000 --> 00:11:31,500 Ou te kapab ekri yon deklarasyon Si. 230 00:11:31,500 --> 00:11:34,100 Epi sa a, pwobableman youn nan la premye bagay ou vle tcheke. 231 00:11:34,100 --> 00:11:34,599 OK. 232 00:11:34,599 --> 00:11:36,940 Chak fwa yo ba ou kalite tankou yon ka kwen 233 00:11:36,940 --> 00:11:39,150 tankou sa a, sa a, se tipikman youn nan bagay ki premye 234 00:11:39,150 --> 00:11:41,200 w ap ale nan tcheke nan kòd ou a. 235 00:11:41,200 --> 00:11:44,220 >> Epitou, yon bagay yo rekonèt pou egzamen an 236 00:11:44,220 --> 00:11:48,870 se si ou gen yon fason rezèvwa fè yon bagay, ekri li desann. 237 00:11:48,870 --> 00:11:52,220 Paske nou pa ap korije ou sou konsepsyon, nou ap 238 00:11:52,220 --> 00:11:54,840 korije ou sou Correct pou ti tès. 239 00:11:54,840 --> 00:11:59,970 Se konsa, menm si ou konnen ke li nan yon super move fason yo fè yon bagay men li ap travay, 240 00:11:59,970 --> 00:12:03,290 ekri li, OK? 241 00:12:03,290 --> 00:12:06,520 >> Literalman, mwen te wè timoun dènye year-- si ou gade nan yon sèl ane pase a, 242 00:12:06,520 --> 00:12:08,180 yo ap tankou, fè piramid la Mario. 243 00:12:08,180 --> 00:12:12,482 Apre sa, yo literalman jis te fè "ekri ak lèt ​​detache, regle, ekri ak lèt ​​detache, regle, regle, ekri ak lèt ​​detache, regle, 244 00:12:12,482 --> 00:12:13,242 regle, regle. " 245 00:12:13,242 --> 00:12:14,040 Men, li la kòrèk. 246 00:12:14,040 --> 00:12:18,490 Li sa nou rakonte l 'bay, se konsa ou pa ka pran pwen an. 247 00:12:18,490 --> 00:12:20,487 Si w ap desann nan la fil, evidamman, ou 248 00:12:20,487 --> 00:12:23,820 vle jwenn yon solisyon plis elegant, ak solisyon an plis elegant pwal pwobableman 249 00:12:23,820 --> 00:12:27,292 gen mwens kòd, ki vle di ou pwobableman gen yon chans ki pi wo nan ke yo te dwat. 250 00:12:27,292 --> 00:12:29,750 Men, si w ap tankou, ou konnen ki sa, pa gen okenn, mwen pa gen tan, mwen 251 00:12:29,750 --> 00:12:32,640 konnen sa a se yon solisyon, li pa pi bon an, ekri li. 252 00:12:32,640 --> 00:12:36,130 Epi ou ka menm ekri sou la bò, mwen konnen sa a se terib, 253 00:12:36,130 --> 00:12:38,135 Men, mwen konnen li fonksyone. 254 00:12:38,135 --> 00:12:39,320 Se konsa, jis yon tèt-up. 255 00:12:39,320 --> 00:12:39,820 OK. 256 00:12:39,820 --> 00:12:42,690 >> Se konsa, evidamman, premye bagay se deklarasyon Si sa a. 257 00:12:42,690 --> 00:12:45,320 Se konsa, sa nou panse sa a Si deklarasyon a pwal? 258 00:12:45,320 --> 00:12:50,860 Ak aktyèlman, kite m 'louvri moute gwo editè Sublime mwen. 259 00:12:50,860 --> 00:12:55,480 Mwen pral kòd sa a epi Lè sa a, montre ou nèg lè li fè. 260 00:12:55,480 --> 00:12:57,370 Se konsa, int pòp. 261 00:12:57,370 --> 00:13:02,260 262 00:13:02,260 --> 00:13:03,240 OK. 263 00:13:03,240 --> 00:13:07,330 Se konsa, si nou gen int sa a pòp void-- se konsa evidamman, 264 00:13:07,330 --> 00:13:13,270 sa a se kèk fonksyon ki pran nan pa gen anyen epi retounen yon nonb antye relatif, dwa? 265 00:13:13,270 --> 00:13:18,930 Se konsa, li jis ale nan pale sou chemine sa a ke nou te kreye. 266 00:13:18,930 --> 00:13:23,360 >> Se konsa, jis tradui sa a dènye fraz, "si chemine se vid, 267 00:13:23,360 --> 00:13:28,380 pòp ta dwe retounen negatif 1, "ki jan nou ta ka fè sa? 268 00:13:28,380 --> 00:13:30,250 Se konsa, Si ki sa? 269 00:13:30,250 --> 00:13:35,080 Kòman nou fè konnen chemine a se vid? 270 00:13:35,080 --> 00:13:36,800 Li nan gwosè jis egal 0. 271 00:13:36,800 --> 00:13:40,300 Stack.size egal 0. 272 00:13:40,300 --> 00:13:42,840 Epitou, mwen kalite ekri avèg isit la. 273 00:13:42,840 --> 00:13:49,550 Se konsa, si mwen fè nenpòt ki typos-- oh, tou bliye mansyone sa a. 274 00:13:49,550 --> 00:13:54,310 >> Semèn pase a, Mwen totalman kalkile ki pwoblèm nou an te la avèk JavaScript. 275 00:13:54,310 --> 00:13:57,270 pa kapitalize mwen ak D. Ou ta dwe sèlman 276 00:13:57,270 --> 00:14:00,070 kapitalize mwen epi pou yo jwenn eleman pa ID. 277 00:14:00,070 --> 00:14:02,170 Ak sa ki te erè a tout antye. 278 00:14:02,170 --> 00:14:05,700 Se konsa, si ou nèg tounen ladan l epi aktyèlman gade nan kòd m 'yo, 279 00:14:05,700 --> 00:14:09,590 si ou jis fè tout bagay yon miniskil d, "bliye eleman pa ID," 280 00:14:09,590 --> 00:14:10,410 li pral travay. 281 00:14:10,410 --> 00:14:12,823 Se konsa, jan mwen te pwomèt la, Mwen te trè fèmen. 282 00:14:12,823 --> 00:14:15,570 Mwen jis kapitalize yon bagay Mwen pa te sipoze, ki 283 00:14:15,570 --> 00:14:19,231 Mwen si ke ou nèg te gen nan dènye pset ou. 284 00:14:19,231 --> 00:14:22,750 >> Se konsa, si gwosè nou an egal 0, kisa nou sipoze fè? 285 00:14:22,750 --> 00:14:25,100 >> ODYANS: Retounen negatif 1. 286 00:14:25,100 --> 00:14:28,644 >> Oratè 1: Retounen negatif 1. 287 00:14:28,644 --> 00:14:29,450 Cool. 288 00:14:29,450 --> 00:14:33,050 Se konsa, kounye a ki sa nou fè? 289 00:14:33,050 --> 00:14:39,420 290 00:14:39,420 --> 00:14:41,730 Nou vle pòp yon bagay la. 291 00:14:41,730 --> 00:14:45,090 Koulye a, sa a se ka a kote nou gen yon bagay. 292 00:14:45,090 --> 00:14:48,686 Gwosè nou an se pi plis pase 1 oswa pi gran pase 0, dwa? 293 00:14:48,686 --> 00:14:50,060 Nou aktyèlman gen yon bagay la. 294 00:14:50,060 --> 00:14:54,390 Se konsa, sa nou vle fè se nou vle retounen isit la menm. 295 00:14:54,390 --> 00:14:58,860 Nou pral di nou vle retounen tèt chemine. 296 00:14:58,860 --> 00:15:00,940 OK? 297 00:15:00,940 --> 00:15:03,840 >> Se konsa, kouman ta ka nou fè sa? 298 00:15:03,840 --> 00:15:06,410 Ki jan nou retounen tèt la nan chemine a? 299 00:15:06,410 --> 00:15:09,700 Sonje byen, chemine nou an, se jis yon etalaj, dwa? 300 00:15:09,700 --> 00:15:12,690 Li te gen kèk kapasite ke nou te bay li. 301 00:15:12,690 --> 00:15:17,840 Kòm nou te mete bagay sa yo on-- oswa aktyèlman, nou ap ale nan ekri "pouse" apre sa a. 302 00:15:17,840 --> 00:15:21,563 Si bagay sa yo yo nan there-- petèt yon foto pral ede. 303 00:15:21,563 --> 00:15:30,845 304 00:15:30,845 --> 00:15:32,120 Hm, mwen renmen gwo lakre pi byen. 305 00:15:32,120 --> 00:15:35,920 306 00:15:35,920 --> 00:15:41,000 >> Se konsa, if-- epi ou ka jis panse a sa a kòm chemine nou an. 307 00:15:41,000 --> 00:15:48,510 Se konsa, sa a se 0, 1, 2. 308 00:15:48,510 --> 00:15:51,175 Mwen pa konnen poukisa bwat mwen ap resevwa pi piti. 309 00:15:51,175 --> 00:15:52,540 Men, gen. 310 00:15:52,540 --> 00:15:53,180 OK. 311 00:15:53,180 --> 00:15:59,960 >> Se konsa, sa a se kèk chemine ak yon kapasite de 5. 312 00:15:59,960 --> 00:16:04,470 Li kite yo di nou gen yon bagay isit la epi nou gen yon bagay isit la. 313 00:16:04,470 --> 00:16:10,840 Se konsa, nan pwen sa a, nou an gwosè ki egal a ki sa? 314 00:16:10,840 --> 00:16:12,720 2. 315 00:16:12,720 --> 00:16:15,370 Men, si nou vle pòp yon bagay koupe nan li, 316 00:16:15,370 --> 00:16:18,720 sa vle di nou vle jwenn m de sa a dwa isit la. 317 00:16:18,720 --> 00:16:21,300 OK? 318 00:16:21,300 --> 00:16:25,633 Se konsa, kouman nou ta retounen valè sa a? 319 00:16:25,633 --> 00:16:27,397 >> ODYANS: Size mwens 1. 320 00:16:27,397 --> 00:16:28,230 >> Oratè 1: Dwa. 321 00:16:28,230 --> 00:16:35,010 Se konsa, gwosè mwens 1, oswa ou ta ka fè gwosè mwens mwens. 322 00:16:35,010 --> 00:16:36,740 Men, nou pa ka jis fè gwosè. 323 00:16:36,740 --> 00:16:38,560 Li nan andedan yon struct, dwa? 324 00:16:38,560 --> 00:16:42,690 Se konsa, stack.struct. 325 00:16:42,690 --> 00:16:44,510 oswa stack.size. 326 00:16:44,510 --> 00:16:47,100 Sa a endèks nou an ki la a. 327 00:16:47,100 --> 00:16:48,070 OK? 328 00:16:48,070 --> 00:16:56,240 >> Lè sa a, si nou gade tounen nan struct nou an isit la, 329 00:16:56,240 --> 00:16:59,770 nou remake ke aktyèlman jwenn aksè etalaj la, 330 00:16:59,770 --> 00:17:04,920 nou bezwen fè stack.numbers yo aktyèlman jwenn aksè ki etalaj. 331 00:17:04,920 --> 00:17:09,859 332 00:17:09,859 --> 00:17:13,700 Se konsa, ki retounen tèt la nan chemine a. 333 00:17:13,700 --> 00:17:18,950 >> Men, yon bagay sa ki si ou nèg gade nan kle a repons, sa a se tout sa yo 334 00:17:18,950 --> 00:17:21,470 ba ou. 335 00:17:21,470 --> 00:17:22,640 Se konsa, sa a se li. 336 00:17:22,640 --> 00:17:27,450 Men, mwen ta ka diskite ke yo ap miss-- Ooh, pa sa mwen te vle. 337 00:17:27,450 --> 00:17:30,864 Mwen ta ka diskite ke yo ap manke yon bagay, because-- wi. 338 00:17:30,864 --> 00:17:32,030 ODYANS: Diminye gwosè a. 339 00:17:32,030 --> 00:17:32,738 Oratè 1: Dwa. 340 00:17:32,738 --> 00:17:34,634 Nou bezwen diminye gwosè nou an kounye a. 341 00:17:34,634 --> 00:17:36,550 Se konsa, sa ki nan difisil sou sa a se yon fwa ou retounen 342 00:17:36,550 --> 00:17:38,780 yon bagay, fonksyon ou a pral sòti, dwa? 343 00:17:38,780 --> 00:17:44,050 Se konsa, sa nou ta ka fè se aktyèlman diminye gwosè nou an premye. 344 00:17:44,050 --> 00:17:47,110 Lè sa a, nou ka jis stack.size. 345 00:17:47,110 --> 00:17:52,110 >> Nou ka jis itilize stack.size kòm endèks nou an, pa t 'kapab nou? 346 00:17:52,110 --> 00:17:55,650 Paske si stack.size se 2, nou dekrwasans li. 347 00:17:55,650 --> 00:17:58,520 Se konsa, li nan 1, ki se endis aktyèl nou yo. 348 00:17:58,520 --> 00:18:03,320 Yon fwa nou debarase m de sa a, nou aktyèlman sèlman gen yon sèl bagay nan etalaj nou an. 349 00:18:03,320 --> 00:18:04,204 Se konsa, li fè sa tou de. 350 00:18:04,204 --> 00:18:05,120 ODYANS: [fèbl]? 351 00:18:05,120 --> 00:18:09,186 352 00:18:09,186 --> 00:18:14,750 >> Oratè 1: Oke, nan ka sa a, nou jis retounen eleman nan 353 00:18:14,750 --> 00:18:19,500 nan tèt la ki se nan nou an gwosè sa a, se nan tèt la. 354 00:18:19,500 --> 00:18:25,530 Men, nou pa te fè anyen yo nan gwosè apre nou retire ki eleman. 355 00:18:25,530 --> 00:18:29,970 Sa a pa te chanje gwosè nou an ankò. 356 00:18:29,970 --> 00:18:32,410 Sa a fè aktyèlman natirèlman chanje gwosè nou an. 357 00:18:32,410 --> 00:18:39,840 >> Men, fè li yon ti kras pi klè, ou ta ka fè stack.size mwens mwens. 358 00:18:39,840 --> 00:18:46,960 Pou m ', li fè li, mwen pa konnen, yon ti kras plis klè that-- ah, 359 00:18:46,960 --> 00:18:51,080 ke w ap aktyèlman chanje gwosè a epi retounen li. 360 00:18:51,080 --> 00:18:54,050 Lòt fason a te amann, paske ou te chanje epi retounen 361 00:18:54,050 --> 00:18:55,700 an menm tan an. 362 00:18:55,700 --> 00:19:00,792 Men, sa a se jis yon lòt fason yo ekri li ke mwen te vle montre ou guys. 363 00:19:00,792 --> 00:19:02,190 ki fè sans? 364 00:19:02,190 --> 00:19:04,940 365 00:19:04,940 --> 00:19:06,847 Pil, mwen panse, se pi fasil pase ke moun kap kriye. 366 00:19:06,847 --> 00:19:08,188 [Ri] 367 00:19:08,188 --> 00:19:09,481 368 00:19:09,481 --> 00:19:09,980 OK. 369 00:19:09,980 --> 00:19:12,000 Èske w gen nenpòt kesyon espesifik sou 11 ak 12, oswa just-- 370 00:19:12,000 --> 00:19:13,736 >> ODYANS: Mwen panse ke li te pil la. 371 00:19:13,736 --> 00:19:14,910 >> Oratè 1: Gwosè a chemine? 372 00:19:14,910 --> 00:19:15,430 >> ODYANS: Yeah. 373 00:19:15,430 --> 00:19:15,980 >> Oratè 1: gotcha. 374 00:19:15,980 --> 00:19:16,490 OK. 375 00:19:16,490 --> 00:19:19,630 Yeah, ou te kapab fè l 'nan youn nan de fason sa yo. 376 00:19:19,630 --> 00:19:20,320 OK. 377 00:19:20,320 --> 00:19:22,790 >> Se konsa, kounye a nou gen yon sèl la ak lòt. 378 00:19:22,790 --> 00:19:30,250 379 00:19:30,250 --> 00:19:34,220 Sa a se vrèman etranj, tankou pa gen sa a sou ekran m 'yo. 380 00:19:34,220 --> 00:19:46,480 381 00:19:46,480 --> 00:19:51,030 Se konsa, si nou gade isit la, nou kounye a ou vle ranpli aplikasyon an nan pouse, 382 00:19:51,030 --> 00:19:57,030 ki aktyèlman mete yon bagay, ale ak foure yon bagay nan nat nou an, 383 00:19:57,030 --> 00:19:59,390 oswa nan chemine nou an. 384 00:19:59,390 --> 00:20:00,140 OK? 385 00:20:00,140 --> 00:20:03,560 >> Se konsa, si nou remake, nou gen yon koup nan bagay sa yo. 386 00:20:03,560 --> 00:20:07,730 Nou gen great-- nou si tout lòt bagay, chak fwa nou gen youn nan sa yo, 387 00:20:07,730 --> 00:20:10,610 ou nèg ta dwe omwen jwenn mwatye yon pwen, paske tout sa ou dwe fè 388 00:20:10,610 --> 00:20:15,760 se konvèti sa a nan C. Epi yo ba ou mwatye nan li. 389 00:20:15,760 --> 00:20:18,560 Se konsa, "si yon pil se tout oswa li se negatif, 390 00:20:18,560 --> 00:20:20,940 Lè sa a, pouse ta dwe retounen fo. " 391 00:20:20,940 --> 00:20:21,890 OK? 392 00:20:21,890 --> 00:20:27,900 >> Se konsa, nou sèlman vle pozitif nonm antye relatif yo dwe sou chemine nou an. 393 00:20:27,900 --> 00:20:28,430 Tout dwa? 394 00:20:28,430 --> 00:20:31,135 Ak sa a se pral swa retounen vre oubyen fo. 395 00:20:31,135 --> 00:20:36,410 396 00:20:36,410 --> 00:20:37,765 Se konsa, nou ta dwe [fèbl] bouleen. 397 00:20:37,765 --> 00:20:43,000 398 00:20:43,000 --> 00:20:43,660 OK. 399 00:20:43,660 --> 00:20:45,725 Se konsa, tradui. 400 00:20:45,725 --> 00:20:47,146 >> ODYANS: [fèbl]. 401 00:20:47,146 --> 00:20:48,318 >> Oratè 1: Oh, mèsi. 402 00:20:48,318 --> 00:20:49,572 Yeah. 403 00:20:49,572 --> 00:20:52,834 Sa a se poukisa mwen gen ou guys. 404 00:20:52,834 --> 00:20:53,810 Int n. 405 00:20:53,810 --> 00:20:54,310 Pafè. 406 00:20:54,310 --> 00:20:56,590 Paske nou ap mete yon bagay sou pil nou an. 407 00:20:56,590 --> 00:20:58,750 Nou aktyèlman bezwen kèk kantite. 408 00:20:58,750 --> 00:20:59,250 OK. 409 00:20:59,250 --> 00:21:05,669 >> Se konsa, jis pran ki liy pase a ke yo te ban nou, kalite nou an nan ka kwen, 410 00:21:05,669 --> 00:21:06,960 ki sa ou panse nou gen isit la? 411 00:21:06,960 --> 00:21:08,730 Li evidan, nou ap ale nan gen kèk Si. 412 00:21:08,730 --> 00:21:09,520 OK. 413 00:21:09,520 --> 00:21:14,380 Se konsa, nou te di, Si chemine nou an, se n konplè ou oswa ou si se negatif. 414 00:21:14,380 --> 00:21:18,850 Se konsa, pwobableman pi fasil yo kòmanse ak, Se konsa, si n se mwens pase 0 415 00:21:18,850 --> 00:21:23,960 or-- sonje bèl ou AK ak OSWA operatè a. 416 00:21:23,960 --> 00:21:27,340 >> Ki jan nou ta tcheke wè si pil nou an, se plen? 417 00:21:27,340 --> 00:21:28,368 Kisa k ap pase? 418 00:21:28,368 --> 00:21:30,080 >> ODYANS: Size egal kapasite. 419 00:21:30,080 --> 00:21:30,871 >> Oratè 1: Egzakteman. 420 00:21:30,871 --> 00:21:35,430 421 00:21:35,430 --> 00:21:36,817 Pafè. 422 00:21:36,817 --> 00:21:37,316 OK. 423 00:21:37,316 --> 00:21:40,672 Ak sa ki fè nou vle fè a? 424 00:21:40,672 --> 00:21:41,740 >> ODYANS: Retounen fo. 425 00:21:41,740 --> 00:21:43,990 >> Oratè 1: Retounen fo. 426 00:21:43,990 --> 00:21:44,960 Pafè. 427 00:21:44,960 --> 00:21:47,000 Se konsa, mwatye a, dwa? 428 00:21:47,000 --> 00:21:50,370 Omwen a anpil, ou nèg pral gen mwatye nan sa a. 429 00:21:50,370 --> 00:21:53,280 Se konsa, kite a panse osijè de sa a. 430 00:21:53,280 --> 00:21:57,100 431 00:21:57,100 --> 00:21:59,030 >> Se konsa, sa a se chemine a nou kòmanse ak. 432 00:21:59,030 --> 00:22:02,340 Nou ap eseye mete kèk eleman sou isit la. 433 00:22:02,340 --> 00:22:05,580 >> Nou gen yon gwosè ki nan egal a 2 kounye a. 434 00:22:05,580 --> 00:22:09,060 Nou gen yon kapasite ki egal a 5. 435 00:22:09,060 --> 00:22:13,470 Li kite yo di nou gen kèk n sa a, se egal a 3. 436 00:22:13,470 --> 00:22:18,170 Se konsa, nou bezwen opinyon 3 nan espas sa a. 437 00:22:18,170 --> 00:22:22,320 Epi nou bezwen opinyon l 'nan endèks 2. 438 00:22:22,320 --> 00:22:22,820 Dwa? 439 00:22:22,820 --> 00:22:31,730 440 00:22:31,730 --> 00:22:35,130 >> Se konsa, kouman ta ka nou fè sa? 441 00:22:35,130 --> 00:22:46,580 Ap eseye assign-- nou vle gen aksè a etalaj nou an. 442 00:22:46,580 --> 00:22:49,300 Se konsa, stack.numbers. 443 00:22:49,300 --> 00:22:52,932 Men, nan sa ki endis ta nou vle sa a yo dwe? 444 00:22:52,932 --> 00:22:54,408 >> ODYANS: [fèbl]. 445 00:22:54,408 --> 00:22:56,806 >> Oratè 1: Yeah. 446 00:22:56,806 --> 00:22:57,305 Stack.size. 447 00:22:57,305 --> 00:23:02,720 448 00:23:02,720 --> 00:23:04,830 Apre sa, nou vle ke yo egal n, dwa? 449 00:23:04,830 --> 00:23:05,752 >> ODYANS: [fèbl]. 450 00:23:05,752 --> 00:23:07,710 Oratè 1: Mwen te aktyèlman jis gade nan sa. 451 00:23:07,710 --> 00:23:09,865 Mwen panse ke se sa ki mal. 452 00:23:09,865 --> 00:23:14,564 >> ODYANS: pa ou vle a espas sot pase gwosè a ye kounye a? 453 00:23:14,564 --> 00:23:18,842 >> Oratè 1: Oke, si nou gade isit la, gwosè nou an nan pwen sa a se 2. 454 00:23:18,842 --> 00:23:25,600 Nou vle li nan ale nan endèks 2, paske sa a se tèt la nan chemine nou an. 455 00:23:25,600 --> 00:23:29,480 Se konsa, mwen ta ka di ke li yo ta dwe stack.size, 456 00:23:29,480 --> 00:23:32,380 ak Lè sa a ou ta ogmante stack.size. 457 00:23:32,380 --> 00:23:33,820 tout moun dakò? 458 00:23:33,820 --> 00:23:35,780 Mwen panse ke mwen dakò ak sa. 459 00:23:35,780 --> 00:23:38,180 Ou nèg ka diskite avè m 'si ou ta renmen. 460 00:23:38,180 --> 00:23:40,078 Oswa ou pa diskite, men nou ka diskite sou sa a. 461 00:23:40,078 --> 00:23:42,518 >> ODYANS: [fèbl]. 462 00:23:42,518 --> 00:23:47,650 >> Oratè 1: Milimèt-HM, se kote li a louvri paske nan zewo Indexing. 463 00:23:47,650 --> 00:23:50,027 Se konsa, Lè nou konsidere ke nan pati a an premye, Mwen te panse yo te sa ki mal, 464 00:23:50,027 --> 00:23:53,910 epi yo te aktyèlman dwa, sa a pati, mwen aktyèlman panse ke yo te mal. 465 00:23:53,910 --> 00:23:55,990 Mwen ta ka di ou ta dwe definitivman opinyon li isit la. 466 00:23:55,990 --> 00:23:58,540 Mwen panse ke nou tout dakò nou gen yon gwosè nan 2. 467 00:23:58,540 --> 00:24:01,480 Sa a egzakteman ki kote nou vle nouvo nimewo nou yo ale. 468 00:24:01,480 --> 00:24:05,120 Se konsa, nan stack.numbers stack.size ta dwe egal a n. 469 00:24:05,120 --> 00:24:09,510 Lè sa a, nou ta kantite stack.size la. 470 00:24:09,510 --> 00:24:11,099 ++. 471 00:24:11,099 --> 00:24:12,390 Lè sa a, ki sa nou vle fè? 472 00:24:12,390 --> 00:24:17,400 Genyen yon dènye bagay nou dwe fè si nou avèk siksè mete sa a? 473 00:24:17,400 --> 00:24:19,190 Retounen vre. 474 00:24:19,190 --> 00:24:20,071 Epi, koulye a ou ap fè. 475 00:24:20,071 --> 00:24:23,440 476 00:24:23,440 --> 00:24:27,765 Se konsa, mwen santi tankou li te mwens nan tout antye mwens stack.size ak stack.size ++ ki 477 00:24:27,765 --> 00:24:29,440 messed bagay yo. 478 00:24:29,440 --> 00:24:29,940 Pwa. 479 00:24:29,940 --> 00:24:34,400 Mwen keep-- mwen gen sa a jenou-embesil tandans toujou frape 480 00:24:34,400 --> 00:24:38,060 Kontwòl, S, paske mwen pa janm vle pèdi nenpòt nan travay mwen. 481 00:24:38,060 --> 00:24:39,670 Men, mwen pa bezwen fè sa kounye a. 482 00:24:39,670 --> 00:24:40,170 OK. 483 00:24:40,170 --> 00:24:41,650 Se konsa, sa ki te chemine. 484 00:24:41,650 --> 00:24:44,460 485 00:24:44,460 --> 00:24:46,300 Cool. 486 00:24:46,300 --> 00:24:48,970 >> Eske gen yon bagay? 487 00:24:48,970 --> 00:24:51,220 Eske ou te nèg jwenn nenpòt lòt kesyon ke ou ta 488 00:24:51,220 --> 00:24:52,810 renmen ale sou soti nan ti tès anvan yo? 489 00:24:52,810 --> 00:24:57,660 Si ou pa, nou ka kalite kòmanse pale nan egzamen Youn nan ane pase. 490 00:24:57,660 --> 00:24:58,160 Wi. 491 00:24:58,160 --> 00:25:00,035 >> ODYANS: Pou premye a pati, mwen pa t 'reyèlman 492 00:25:00,035 --> 00:25:02,438 konprann ki jan ou efase nimewo a. 493 00:25:02,438 --> 00:25:03,600 Se pa li toujou la? 494 00:25:03,600 --> 00:25:05,100 >> Oratè 1: Nimewo a nan toujou la. 495 00:25:05,100 --> 00:25:11,350 Men, sa ki k ap pase se ke paske ou te te di li ke tèt la nan chemine ou 496 00:25:11,350 --> 00:25:16,180 se isit la, lè ou ale nan ajoute yon bagay sou chemine a, li pral jis ranplase li. 497 00:25:16,180 --> 00:25:17,084 >> ODYANS: Oh, OK. 498 00:25:17,084 --> 00:25:17,750 Oratè 1: Yeah. 499 00:25:17,750 --> 00:25:21,334 Se konsa, li la tankou li bliye ak li nan gen di ki kalite bagay menm si li nan la. 500 00:25:21,334 --> 00:25:22,750 ODYANS: [fèbl] oswa yon lòt bagay? 501 00:25:22,750 --> 00:25:23,333 Oratè 1: No 502 00:25:23,333 --> 00:25:25,090 Paske nou ap nan yon etalaj, ou pa gen 503 00:25:25,090 --> 00:25:28,850 enkyete about-- ou pral jis pase sou desizyon li lè ou bezwen li. 504 00:25:28,850 --> 00:25:30,560 Tout dwa. 505 00:25:30,560 --> 00:25:31,560 Nenpòt lòt kesyon? 506 00:25:31,560 --> 00:25:34,843 Si ou pa, nou ap jis pral yo kòmanse ap travay nan. 507 00:25:34,843 --> 00:25:35,343 Yeah. 508 00:25:35,343 --> 00:25:40,905 >> ODYANS: Bon, sa a se yon sèl sou 2013 la, men jis ale atravè tout bagay la SQL. 509 00:25:40,905 --> 00:25:41,530 Oratè 1: SQL? 510 00:25:41,530 --> 00:25:42,030 OK. 511 00:25:42,030 --> 00:25:45,290 512 00:25:45,290 --> 00:25:46,925 Se konsa, sa a se 26 a 29. 513 00:25:46,925 --> 00:25:47,550 ODYANS: Yeah. 514 00:25:47,550 --> 00:25:48,120 Oratè 1: OK. 515 00:25:48,120 --> 00:25:48,620 Lovely. 516 00:25:48,620 --> 00:25:50,230 Se pou yo rale moun yo. 517 00:25:50,230 --> 00:25:57,560 518 00:25:57,560 --> 00:25:59,506 Oh, gade. 519 00:25:59,506 --> 00:26:02,180 Eske ou te nèg jwi Steve a Ballmer pale, nan chemen an? 520 00:26:02,180 --> 00:26:06,350 Li te trè hilarious, nan opinyon mwen. 521 00:26:06,350 --> 00:26:09,930 Mwen renmen ke chak fwa mwen pote yo moute CS50 a sit entènèt pandan seksyon, li la tankou, o, 522 00:26:09,930 --> 00:26:10,730 gade seksyon. 523 00:26:10,730 --> 00:26:11,575 E mwen panse tankou, mm. 524 00:26:11,575 --> 00:26:13,100 >> ODYANS: Èske nou ka fè li? 525 00:26:13,100 --> 00:26:15,060 >> Oratè 1: Nou pral fè l 'nan fen an. 526 00:26:15,060 --> 00:26:15,560 Ki jan nan sa? 527 00:26:15,560 --> 00:26:17,476 Paske mwen konnen ou nèg te toujou te vle. 528 00:26:17,476 --> 00:26:18,573 Se konsa, nou pral fè li nan fen an. 529 00:26:18,573 --> 00:26:21,884 530 00:26:21,884 --> 00:26:22,800 Youn kesyon. 531 00:26:22,800 --> 00:26:24,502 >> ODYANS: [fèbl]. 532 00:26:24,502 --> 00:26:25,960 Oratè 1: Li pral yon seksyon meta. 533 00:26:25,960 --> 00:26:27,332 ODYANS: Se tankou 5 segonn. 534 00:26:27,332 --> 00:26:28,805 ODYANS: Vrèman? 535 00:26:28,805 --> 00:26:30,567 ODYANS: Se tankou 20 segonn. 536 00:26:30,567 --> 00:26:33,260 [Entèrpozisyon vwa] 537 00:26:33,260 --> 00:26:35,756 [Ri] 538 00:26:35,756 --> 00:26:35,931 539 00:26:35,931 --> 00:26:37,680 Oratè 1: Mwen renmen ke ou te deja fè 540 00:26:37,680 --> 00:26:40,130 li, ki se sa ki fè m 'pi kontan. 541 00:26:40,130 --> 00:26:42,340 OK. 542 00:26:42,340 --> 00:26:42,840 26. 543 00:26:42,840 --> 00:26:43,340 OK. 544 00:26:43,340 --> 00:26:46,050 545 00:26:46,050 --> 00:26:48,930 Aktyèlman, nou ap jis ale nan glas sa a kounye a, paske mwen pa kapab. 546 00:26:48,930 --> 00:26:49,640 Sa a se anmèdan. 547 00:26:49,640 --> 00:26:56,200 548 00:26:56,200 --> 00:26:56,700 OK. 549 00:26:56,700 --> 00:27:00,254 Koulye a, mwen ka wè tout bagay. 550 00:27:00,254 --> 00:27:01,230 Lovely. 551 00:27:01,230 --> 00:27:02,500 OK. 552 00:27:02,500 --> 00:27:07,300 >> Se konsa, evidamman, sa a ta dwe pote tounen memwa gwo soti nan [? ] Finans CSG?. 553 00:27:07,300 --> 00:27:09,090 Mwatye nan ou sou te pou ou resevwa nòt kounye a. 554 00:27:09,090 --> 00:27:13,370 Lòt mwatye a mwen pral jwenn yo trè, trè byento, mwen te pwomèt. 555 00:27:13,370 --> 00:27:17,110 >> Se konsa, nou gen kèk tab SQL sa a, se kont isit la. 556 00:27:17,110 --> 00:27:19,830 Pwobableman menm jan ak itilizatè tab mesye ou yo. 557 00:27:19,830 --> 00:27:22,350 Epi nou gen kèk nimewo sa ki te yon kle PRIMARY 558 00:27:22,350 --> 00:27:24,750 ak reprezante yon 12-chif nimewo kont. 559 00:27:24,750 --> 00:27:27,140 Ak balans se konbyen lajan yo genyen. 560 00:27:27,140 --> 00:27:30,530 Ak valè a default se 100. 561 00:27:30,530 --> 00:27:33,470 Apre sa, yo ba yo $ 100 nenpòt tan yo louvri yon kont. 562 00:27:33,470 --> 00:27:36,132 Mwen swete labank mwen te fè sa. 563 00:27:36,132 --> 00:27:37,710 OK. 564 00:27:37,710 --> 00:27:41,110 >> Se konsa, nou vle ranpli proje la pa espesifye akote Nimewo nan balans 565 00:27:41,110 --> 00:27:43,900 kalite a SQL ki apwopriye yo. 566 00:27:43,900 --> 00:27:50,240 Se konsa, sa ou nèg panse ta dwe kalite tankou reyaksyon jenou-embesil ou 567 00:27:50,240 --> 00:27:51,380 pou kalite pou de sa yo? 568 00:27:51,380 --> 00:27:52,180 >> ODYANS: Int. 569 00:27:52,180 --> 00:27:53,450 >> Oratè 1: yon int. 570 00:27:53,450 --> 00:27:54,230 OK. 571 00:27:54,230 --> 00:27:57,490 Lè sa a, pou yon balans? 572 00:27:57,490 --> 00:27:57,990 Desimal. 573 00:27:57,990 --> 00:27:58,490 OK. 574 00:27:58,490 --> 00:27:59,830 Se konsa, kounye desimal la. 575 00:27:59,830 --> 00:28:01,450 Int se fèmen. 576 00:28:01,450 --> 00:28:08,610 Kalite bagay la gwo se sa a souliye 12-chif nimewo kont. 577 00:28:08,610 --> 00:28:11,460 Chak fwa nou gen yon bagay sa a, se pi gwo pase uit chif, 578 00:28:11,460 --> 00:28:15,522 yo vle ou sèvi ak gwo Int, ki mwen panse ke is-- 579 00:28:15,522 --> 00:28:18,370 580 00:28:18,370 --> 00:28:21,605 >> ODYANS: Eske se sa ke jis SQL? 581 00:28:21,605 --> 00:28:27,290 >> Oratè 1: Li lè a sèlman mwen te konn tande nan li se lè l sèvi avèk SQL tankou yon gwo Int. 582 00:28:27,290 --> 00:28:29,330 Se jis ba ou yon ti kras pi plis presizyon, 583 00:28:29,330 --> 00:28:33,070 fè si ou pa ap debòde kalite bagay. 584 00:28:33,070 --> 00:28:35,910 Nan tout onètete, mwen panse ke sa a se definitivman youn nan yo menm ki 585 00:28:35,910 --> 00:28:38,480 kote li a tankou, o, li nan te vle di pou moun ki 586 00:28:38,480 --> 00:28:41,090 ki gen yon ti kras pi plis konesans nan SQL. 587 00:28:41,090 --> 00:28:44,710 Nou pa janm te pale osijè de antye gwo nan pset ou. 588 00:28:44,710 --> 00:28:48,210 Se konsa, li nan kalite tankou mwen se trè asire w si ou mete int, li te mwatye kredi. 589 00:28:48,210 --> 00:28:51,450 >> Ak jan mwen te di anvan, gen pwal yo dwe kèk kesyon ki yo se jis 590 00:28:51,450 --> 00:28:55,550 vle di ke yo vwayaj ou leve, se konsa ki pa tout moun vin 100. 591 00:28:55,550 --> 00:28:58,326 Paske nan kou, gen kèk moun nan CS50 592 00:28:58,326 --> 00:29:00,950 ki te fè sa pou tankou uit ane, epi w ap tankou, 593 00:29:00,950 --> 00:29:01,741 ki sa ou ap fè? 594 00:29:01,741 --> 00:29:03,290 Men, yeah. 595 00:29:03,290 --> 00:29:05,650 >> Desimal pou balans te youn nan evidan. 596 00:29:05,650 --> 00:29:10,910 Lè sa a, gwo int pou nimewo jis paske nan ki, tankou, souliye 12-chif. 597 00:29:10,910 --> 00:29:16,760 Chak fwa anyen se nan fonse oswa li a souliye, tankou, peye atansyon sou li. 598 00:29:16,760 --> 00:29:18,940 Nou pa ap fè ke jis paske. 599 00:29:18,940 --> 00:29:20,290 OK. 600 00:29:20,290 --> 00:29:24,400 >> Se konsa, "ta kwè enpoze yo ki bank yon frè chak mwa $ 20 sou tout kont. 601 00:29:24,400 --> 00:29:27,850 Avèk sa ki te kapab sijè rechèch bank la dedwi $ 20 soti nan tout kont 602 00:29:27,850 --> 00:29:31,490 menm si li sòti nan kèk balans negatif? " 603 00:29:31,490 --> 00:29:35,220 Se konsa, kite la kòmanse senp. 604 00:29:35,220 --> 00:29:39,240 Nou gen kat kòmandman prensipal pou SQL yo, ki se? 605 00:29:39,240 --> 00:29:42,620 ou nèg sonje kat la moun gwo ke mwen te di ou? 606 00:29:42,620 --> 00:29:45,710 >> MIZAJOU, efase, SELECT, ak insert. 607 00:29:45,710 --> 00:29:46,430 Pafè. 608 00:29:46,430 --> 00:29:46,930 Te resevwa li. 609 00:29:46,930 --> 00:29:52,910 Se konsa, sa nou panse fòs kapab pi itil pou yon sèl sa a? 610 00:29:52,910 --> 00:29:54,231 Nou sont- MIZAJOU. 611 00:29:54,231 --> 00:29:54,730 Egzakteman. 612 00:29:54,730 --> 00:29:59,330 Se konsa, MIZAJOU, paske nou ap chèche nan kont ki deja egziste. 613 00:29:59,330 --> 00:30:03,570 >> Se konsa, sonje jeneral nou an sòt de bagay se aktyalizasyon. 614 00:30:03,570 --> 00:30:06,300 Lè sa a, sa ki vini apre MIZAJOU? 615 00:30:06,300 --> 00:30:09,780 Nou gen kèk tab ke nou ap indican. 616 00:30:09,780 --> 00:30:17,130 Se konsa, si mwen rale moute Sublime seye plizyè MIZAJOU. 617 00:30:17,130 --> 00:30:18,820 Se konsa, sa a se yon fòma jeneral. 618 00:30:18,820 --> 00:30:20,800 Se konsa, nou gen tab MIZAJOU. 619 00:30:20,800 --> 00:30:23,203 Lè sa a, sa ki nan bagay la pwochen nou genyen? 620 00:30:23,203 --> 00:30:26,230 >> Ou ka fè KI KOTE. 621 00:30:26,230 --> 00:30:30,530 Lè sa a, nou gen kèk kalifye isit la. 622 00:30:30,530 --> 00:30:32,300 Lè sa a, sa nou genyen apre a? 623 00:30:32,300 --> 00:30:38,020 Nou gen kèk bagay SET-- egal a yon bagay. 624 00:30:38,020 --> 00:30:38,870 Bla bla egal. 625 00:30:38,870 --> 00:30:41,859 626 00:30:41,859 --> 00:30:42,400 À bla. 627 00:30:42,400 --> 00:30:45,655 628 00:30:45,655 --> 00:30:47,050 Dwa? 629 00:30:47,050 --> 00:30:52,280 Se konsa, sa a, se tankou jeneral la lide pou kèk aktyalizasyon. 630 00:30:52,280 --> 00:30:53,060 OK? 631 00:30:53,060 --> 00:30:56,890 >> Se konsa, kite la kòmanse ranpli sa a nan ak sa li ta dwe. 632 00:30:56,890 --> 00:30:59,640 Se konsa, sa tab yo nou ap pale de? 633 00:30:59,640 --> 00:31:02,190 Kont. 634 00:31:02,190 --> 00:31:05,360 Lè sa a, nan ka sa a, sa ki nan vrèman fre 635 00:31:05,360 --> 00:31:08,620 se yo nou ap pale de espesifik itilizatè ki nan kont nou an, 636 00:31:08,620 --> 00:31:11,240 oswa yo nou ap pale de tout itilizatè? 637 00:31:11,240 --> 00:31:12,490 Nou ap pale de tout itilizatè. 638 00:31:12,490 --> 00:31:16,870 Se konsa, nan ka sa a, nou ka jis efase sa a KI KOTE kalifye. 639 00:31:16,870 --> 00:31:20,500 KI KOTE la se sèlman lè ou vle nan limit ki sa w ap chanje. 640 00:31:20,500 --> 00:31:23,500 Si ou vle chanje tout la tab, ou ka jis lage sa. 641 00:31:23,500 --> 00:31:27,390 642 00:31:27,390 --> 00:31:27,960 OK. 643 00:31:27,960 --> 00:31:29,430 >> Se konsa, kounye a nou ap nan pati SET nou an. 644 00:31:29,430 --> 00:31:31,514 Ki sa nou ta vle chanje? 645 00:31:31,514 --> 00:31:33,502 >> ODYANS: Balans. 646 00:31:33,502 --> 00:31:34,747 >> Oratè 1: Balans. 647 00:31:34,747 --> 00:31:37,080 E nou pral to-- ki jan yo se nou pral chanje balans? 648 00:31:37,080 --> 00:31:40,230 649 00:31:40,230 --> 00:31:43,370 Nou gen yon frè $ 20, dwa? 650 00:31:43,370 --> 00:31:45,210 Mwens 20. 651 00:31:45,210 --> 00:31:48,130 Apre sa, yo te di ke li se ok si nou gen balans negatif. 652 00:31:48,130 --> 00:31:51,630 Se konsa, nan ka sa a, ou pa bezwen fè nenpòt ki plis kouran erè. 653 00:31:51,630 --> 00:31:53,040 OK? 654 00:31:53,040 --> 00:31:56,130 Sa se literalman tout sa ou dwe fè. 655 00:31:56,130 --> 00:31:57,990 Cool? 656 00:31:57,990 --> 00:31:59,260 OK. 657 00:31:59,260 --> 00:32:01,460 >> Se konsa, kite a ale nan youn nan pwochen. 658 00:32:01,460 --> 00:32:04,510 "Ak sa ki SQL sijè rechèch te kapab nan bank rekipere nimewo yo kont 659 00:32:04,510 --> 00:32:08,300 nan kliyan li yo ak pi rich balanse pi gran pase $ 1,000? " 660 00:32:08,300 --> 00:32:11,820 Si bank ou ak kliyan pi rich ou yo se jis yo menm ki ak plis pase $ 1,000, 661 00:32:11,820 --> 00:32:14,130 Mwen santi mwen tankou w ap fè yon bagay mal. 662 00:32:14,130 --> 00:32:16,080 Tankou, ki jan yon bank siviv sou sa? 663 00:32:16,080 --> 00:32:18,930 Tankou, ki enterese, pa byen ase. 664 00:32:18,930 --> 00:32:20,911 OK. 665 00:32:20,911 --> 00:32:23,660 Avèk sa a sòt de bagay sa, sa ki fè ou panse, nan kat fonksyon nou an, 666 00:32:23,660 --> 00:32:25,970 ou panse nou ap ale nan itilize? 667 00:32:25,970 --> 00:32:27,048 Chwazi. 668 00:32:27,048 --> 00:32:27,548 Pafè. 669 00:32:27,548 --> 00:32:31,300 670 00:32:31,300 --> 00:32:32,460 Chwazi. 671 00:32:32,460 --> 00:32:33,300 OK. 672 00:32:33,300 --> 00:32:40,150 Se konsa, nou ap chwazi kèk idantifyan nan tablo. 673 00:32:40,150 --> 00:32:44,070 Lè sa a, KI KOTE kondisyon. 674 00:32:44,070 --> 00:32:46,110 Se konsa, kòm nou ale nan sa yo, mwen jis ale 675 00:32:46,110 --> 00:32:49,680 bay ou nèg yon resiklaj jeneral sou fòma an jeneral nan tout moun sa yo. 676 00:32:49,680 --> 00:32:54,600 >> Se konsa, nou ap chwazi kèk sòt nan [? bagay. ?] Nan ka sa a, 677 00:32:54,600 --> 00:32:59,050 sa a se pral yo dwe tipikman kèk kolòn. 678 00:32:59,050 --> 00:33:02,870 Se konsa, nan ka nou an, nou gen nimewo, balans. 679 00:33:02,870 --> 00:33:06,020 Nan ka mesye ou a, petèt li te ID, non, modpas. 680 00:33:06,020 --> 00:33:10,760 Nenpòt nan moun sa kolòn, sa a, se tipikman ki sa nou ap chwazi. 681 00:33:10,760 --> 00:33:14,785 >> Se konsa, nan ka sa a isit la, ki kalite kolòn, ki sa idantifyan 682 00:33:14,785 --> 00:33:17,700 yo nou rale soti nan tablo nou an? 683 00:33:17,700 --> 00:33:21,020 Ki sa ki li mande nou pou? 684 00:33:21,020 --> 00:33:24,510 Li mande nou pou nimewo nou an, dwa? 685 00:33:24,510 --> 00:33:26,236 Kont nimewo yo. 686 00:33:26,236 --> 00:33:30,500 Se konsa, sonje, jis nimewo nan ka sa a. 687 00:33:30,500 --> 00:33:33,910 Si ou nèg janm te gen erè a, ki bwat zoranj klere ta vini. 688 00:33:33,910 --> 00:33:37,040 Epi li te tankou, inatandi ranje nan, tankou, kèlkeswa sa. 689 00:33:37,040 --> 00:33:39,840 Sa a se paske ou rele tab ou mal, dwa? 690 00:33:39,840 --> 00:33:43,660 Se konsa, asire w ke ou se rele kolòn nan kòrèkteman. 691 00:33:43,660 --> 00:33:48,670 >> Se konsa, nan tablo, tab nou an se rele kont. 692 00:33:48,670 --> 00:33:51,460 Yon fwa ankò, asire w ke ou ap indican tab ou kòrèkteman. 693 00:33:51,460 --> 00:33:52,990 Lè sa a, sa ki nan kondisyon nou an isit la? 694 00:33:52,990 --> 00:33:55,672 Ki sa yo nou chèche pou? 695 00:33:55,672 --> 00:33:56,680 Nou vle moun rich nou an. 696 00:33:56,680 --> 00:33:57,180 Wi. 697 00:33:57,180 --> 00:34:00,580 Se konsa, balans pi gran pase 1,000. 698 00:34:00,580 --> 00:34:02,020 Gen ou ale. 699 00:34:02,020 --> 00:34:03,760 Sa a rechèch ou an. 700 00:34:03,760 --> 00:34:06,430 Pa twò move, dwa? 701 00:34:06,430 --> 00:34:07,160 OK. 702 00:34:07,160 --> 00:34:09,350 >> Se konsa, kounye a pou yon dènye nou an. 703 00:34:09,350 --> 00:34:11,370 Avèk sa, nou ap breezing nan. 704 00:34:11,370 --> 00:34:12,170 OK. 705 00:34:12,170 --> 00:34:16,280 Se konsa, kounye a "ak sa te kapab query bank fèmen an, mwen, efase "- 706 00:34:16,280 --> 00:34:19,760 pa ou renmen ki jan yo jis te ban nou DELETE-- 707 00:34:19,760 --> 00:34:24,060 "Chak kont ki gen yon balans nan 0?" 708 00:34:24,060 --> 00:34:26,899 Mwen panse ke nou tout ka dakò nou ap pwobableman ale nan lè l sèvi avèk efase. 709 00:34:26,899 --> 00:34:29,330 Mwen se akeyi yo pran okenn diskisyon alantou sa. 710 00:34:29,330 --> 00:34:33,560 Men mwen panse ke li la trè san danje yo di ke nou ta ka itilize efase. 711 00:34:33,560 --> 00:34:42,600 >> Se konsa, nou ap ale nan efase kèk itilizatè yo soti nan tab, KI KOTE kondisyon. 712 00:34:42,600 --> 00:34:45,480 Se konsa, menm sòt de bagay tankou chwazi. 713 00:34:45,480 --> 00:34:48,389 714 00:34:48,389 --> 00:34:49,840 Se konsa, nan sa a case-- oh, regrèt. 715 00:34:49,840 --> 00:34:51,570 Mwen ta dwe efase soti nan. 716 00:34:51,570 --> 00:34:54,320 Paske Delete pral efase tout ranje a. 717 00:34:54,320 --> 00:34:58,300 Se konsa, nou pa bezwen pale sou ki bagay espesifik sou yon itilizatè nou ap 718 00:34:58,300 --> 00:34:59,280 efase. 719 00:34:59,280 --> 00:35:02,870 Si nou efase yon itilizatè, nou ap efase tout bagay sou yo. 720 00:35:02,870 --> 00:35:07,230 >> Se konsa, nan ka sa a, nou jis bezwen ranpli nan KI KOTE nou yo ak kondisyon nou yo. 721 00:35:07,230 --> 00:35:13,050 Se konsa, tab nou an se jis kont nou an tab, menm jan nou te toujou ap fè. 722 00:35:13,050 --> 00:35:14,931 Lè sa a, ki sa ki kondisyon nou an isit la? 723 00:35:14,931 --> 00:35:16,655 >> ODYANS: Balans. 724 00:35:16,655 --> 00:35:18,330 >> Oratè 1: Balans egal 0. 725 00:35:18,330 --> 00:35:19,401 Kòrèk. 726 00:35:19,401 --> 00:35:19,900 Tout bon. 727 00:35:19,900 --> 00:35:20,322 Wi. 728 00:35:20,322 --> 00:35:21,238 >> ODYANS: [fèbl]. 729 00:35:21,238 --> 00:35:25,745 730 00:35:25,745 --> 00:35:30,530 >> Oratè 1: Se konsa, efase natirèlman supresyon tout bagay. 731 00:35:30,530 --> 00:35:42,380 Se konsa, Lè nou konsidere ke ak chwazi, chwazi pran nan sèten kolòn ke ou vle retounen. 732 00:35:42,380 --> 00:35:46,680 Si ou te tout bagay sou yon itilizatè tounen, ou itilize zetwal. 733 00:35:46,680 --> 00:35:49,040 Star di, tounen vin jwenn mwen tout bagay soti nan itilizatè sa a. 734 00:35:49,040 --> 00:35:54,430 Oswa si ou mete KI KOTE zetwal, ki vle di jis ban m 'tout bagay. 735 00:35:54,430 --> 00:35:56,520 >> Men, efase natirèlman gen sa. 736 00:35:56,520 --> 00:36:01,569 Se konsa, si ou di, efase soti nan kont kote balans egal 0, 737 00:36:01,569 --> 00:36:02,610 li pral yo ale nan. 738 00:36:02,610 --> 00:36:05,890 Epi tout kote ke balans se egal a 0, li natirèlman fè sa. 739 00:36:05,890 --> 00:36:07,470 Li pral efase tout bagay. 740 00:36:07,470 --> 00:36:15,120 Etwal la se pi plis pou- ak chwazi oswa MIZAJOU, 741 00:36:15,120 --> 00:36:20,320 li nan pale plis sou moun nan jaden ki koresponn a yon itilizatè. 742 00:36:20,320 --> 00:36:25,530 >> Se konsa, lè ou chwazi zetwal nan tablo KI KOTE ID 743 00:36:25,530 --> 00:36:31,130 egal 1, ki retounen nan ou tout bagay sou itilizatè a ak ID 1. 744 00:36:31,130 --> 00:36:38,980 Si ou te fè nimewo SELECT oswa chwazi ID Non vigil soti nan itilizatè 745 00:36:38,980 --> 00:36:43,110 KI KOTE ID egal 1, ki jis retounen nimewo yo 746 00:36:43,110 --> 00:36:44,880 oswa ID yo ak non yo. 747 00:36:44,880 --> 00:36:45,540 OK? 748 00:36:45,540 --> 00:36:49,420 >> Se konsa, nou itilize zetwal nan ka sa a ban nou tout bagay sou yon itilizatè. 749 00:36:49,420 --> 00:36:51,940 Ak efase natirèlman fè sa. 750 00:36:51,940 --> 00:36:56,950 Li pa jis efase ID a, oswa jis non an, oswa kèlkeswa sa. 751 00:36:56,950 --> 00:36:57,550 Yeah, pa gen okenn. 752 00:36:57,550 --> 00:36:59,780 Li jis supresyon itilizatè a tout antye. 753 00:36:59,780 --> 00:37:05,210 Se konsa, nou pa bezwen enkyete sou zetwal la a. 754 00:37:05,210 --> 00:37:09,170 >> Si ou te vle efase tout bagay, ou ta ka fè sa, 755 00:37:09,170 --> 00:37:11,970 ak sa a pral jis lage tout bagay. 756 00:37:11,970 --> 00:37:14,290 Men, anjeneral, ou pa vle fè sa. 757 00:37:14,290 --> 00:37:16,940 Men, si ou tout tan tout tan vle efase tout bagay, ou ta ka fè sa. 758 00:37:16,940 --> 00:37:18,890 OK. 759 00:37:18,890 --> 00:37:22,120 >> Fè ou nèg jwenn nenpòt lòt kesyon? 760 00:37:22,120 --> 00:37:22,620 Wi. 761 00:37:22,620 --> 00:37:24,316 >> ODYANS: Èske ou ta kapab fè 26? 762 00:37:24,316 --> 00:37:27,090 >> Oratè 1: 26 nou jis te fè. 763 00:37:27,090 --> 00:37:28,090 ODYANS: Oh, 25, regrèt. 764 00:37:28,090 --> 00:37:30,721 Oratè 1: 25. 765 00:37:30,721 --> 00:37:31,220 OK. 766 00:37:31,220 --> 00:37:31,870 25. 767 00:37:31,870 --> 00:37:32,650 Oh. 768 00:37:32,650 --> 00:37:33,691 Yo ap fè JavaScript. 769 00:37:33,691 --> 00:37:37,265 Oh, mwen pa ka kwè li. 770 00:37:37,265 --> 00:37:38,765 Mwen pral dezòd nou moute ankò, guys. 771 00:37:38,765 --> 00:37:42,180 772 00:37:42,180 --> 00:37:43,330 OK. 773 00:37:43,330 --> 00:37:44,440 Nou gen sa a. 774 00:37:44,440 --> 00:37:46,172 Nou pwal fè travay sa a. 775 00:37:46,172 --> 00:37:48,190 Ah, jQuery. 776 00:37:48,190 --> 00:37:49,380 Fun. 777 00:37:49,380 --> 00:37:49,880 OK. 778 00:37:49,880 --> 00:37:54,040 >> Se konsa, nou pral ranpli nan aplikasyon nan paj wèb la 779 00:37:54,040 --> 00:37:57,820 nan yon fason ke si yo vizite, D 'non yo, epi soumèt fòm lan, 780 00:37:57,820 --> 00:38:03,810 yo gen gwo alèt sa a fenèt ki pral parèt. 781 00:38:03,810 --> 00:38:08,410 Se konsa, anyen ak alèt, nou konnen ke nou ap ale nan gen yo sèvi ak JavaScript. 782 00:38:08,410 --> 00:38:11,190 Yay, JavaScript. 783 00:38:11,190 --> 00:38:14,070 Men, si yo fail D 'yon non anvan yo soumèt fòm lan, 784 00:38:14,070 --> 00:38:15,110 pa gen okenn alèt ta dwe parèt. 785 00:38:15,110 --> 00:38:17,900 Se konsa, ou ka sèvi ak jQuery, men ou pa gen. 786 00:38:17,900 --> 00:38:22,390 >> Se konsa, mwen pral kite ou nèg travay sou sa a jis pou yon minit koup. 787 00:38:22,390 --> 00:38:24,050 Reflechi sou li. 788 00:38:24,050 --> 00:38:26,050 Lè sa a, nou pral Kòd li. 789 00:38:26,050 --> 00:38:29,260 790 00:38:29,260 --> 00:38:33,610 Koupe, mwen pral eseye ak panse a nan Pi bon fason yo eksplike repons sa a ba ou. 791 00:38:33,610 --> 00:38:49,945 792 00:38:49,945 --> 00:38:50,470 Tout dwa. 793 00:38:50,470 --> 00:38:53,150 Nou pral jwenn li fè fè a. 794 00:38:53,150 --> 00:38:53,920 OK. 795 00:38:53,920 --> 00:38:56,370 >> Se konsa, nou ap jis pral mache nan sa a, 796 00:38:56,370 --> 00:38:59,010 paske mwen konnen jQuery se yon ti kras konfizyon. 797 00:38:59,010 --> 00:39:01,710 JavaScript. 798 00:39:01,710 --> 00:39:03,542 Li se yon ti kras yo deyò. 799 00:39:03,542 --> 00:39:05,875 Se konsa, sa nou ap ale nan fè se [Fèbl] aktyèlman rezoud 800 00:39:05,875 --> 00:39:07,250 pwoblèm sa a ak jQuery. 801 00:39:07,250 --> 00:39:09,490 Se konsa, si ou sonje, jQuery se jis yon bibliyotèk 802 00:39:09,490 --> 00:39:11,520 sa se sèlman bati sou tèt JavaScript. 803 00:39:11,520 --> 00:39:14,750 Li nan vle di ke yo fè ou lavi yon ti kras pi fasil. 804 00:39:14,750 --> 00:39:17,660 >> Mwen ta definitivman, si w gen tan, gade sou 805 00:39:17,660 --> 00:39:20,510 yon ti kras nan la dokiman pou jQuery. 806 00:39:20,510 --> 00:39:23,230 Men, li la trè menm jan ak JavaScript. 807 00:39:23,230 --> 00:39:27,830 Li nan te resevwa paradigmes ki similè yo, kote ou sèvi ak sa a operatè dot yo rele fonksyon 808 00:39:27,830 --> 00:39:31,720 sou objè ke ou gen. 809 00:39:31,720 --> 00:39:36,970 >> Se konsa, sa nou gen isit la se pou jQuery, ou ta dwe toujou gen sa a sòt 810 00:39:36,970 --> 00:39:43,010 nan pakè, ki se nan $ (Dokiman) Pare (fonksyon) fonksyon 811 00:39:43,010 --> 00:39:45,510 nan parantèz isit la. 812 00:39:45,510 --> 00:39:46,070 OK. 813 00:39:46,070 --> 00:39:48,700 Se konsa, sa a ta kapab yon bagay ou vle sou fèy twonpe ou. 814 00:39:48,700 --> 00:39:52,070 Paske omwen nan anpil, ou kapab gen pakè a pou jQuery ou. 815 00:39:52,070 --> 00:39:57,190 Epi li pral omwen jwenn ou pati fason a. 816 00:39:57,190 --> 00:40:00,110 >> Se konsa, nan menm fason an ke nou pale anpil sou JavaScript, 817 00:40:00,110 --> 00:40:04,560 epi nou ta kòmanse pa gade nan sa ki nou ap eseye edite 818 00:40:04,560 --> 00:40:06,150 oswa sa ki nou ap eseye chanje. 819 00:40:06,150 --> 00:40:09,050 Epi ki ta tipikman gen nan Premye bagay ke nou ta mete nan. 820 00:40:09,050 --> 00:40:18,270 Se konsa, nan ka sa a, si nou tounen nan sa a isit la epi nou gade nan fòm nou yo isit la, 821 00:40:18,270 --> 00:40:21,790 nou gen sa a entrain, dwa, sa a nan entrain id. 822 00:40:21,790 --> 00:40:24,780 E nou konnen ke ki baze sou kesyon nou yo, nou 823 00:40:24,780 --> 00:40:27,970 yo se swa ale nan voye jete yon erè si sa a se vid, 824 00:40:27,970 --> 00:40:31,720 oswa nou ap ale nan mete sa a nan yon alèt, dwa? 825 00:40:31,720 --> 00:40:36,670 Se konsa, pwobableman ki an sekirite yo di ke nou ap yo pral fè fas ak entrain isit la. 826 00:40:36,670 --> 00:40:41,770 >> jQuery se trè menm jan an ke si nou panse tounen nan CSS, anyen ak yon ID 827 00:40:41,770 --> 00:40:44,760 nou gade nan ak yon regle. 828 00:40:44,760 --> 00:40:48,310 Nenpòt bagay ak nou klas gade ak yon dot, dwa? 829 00:40:48,310 --> 00:40:53,210 Se konsa, nan menm fason an isit la, sa ki nou ap pale de se entrain. 830 00:40:53,210 --> 00:40:56,920 Nou te wè ki entrain se yon ID nan fòm nou yo. 831 00:40:56,920 --> 00:41:00,850 Se konsa, nou ap ale nan al gade nan li kòm sa yo. 832 00:41:00,850 --> 00:41:01,653 Entrain. 833 00:41:01,653 --> 00:41:02,460 OK? 834 00:41:02,460 --> 00:41:04,480 >> Se konsa, lè nan dout, menm si ou gen okenn kote, 835 00:41:04,480 --> 00:41:09,100 si w ap reyèlman fin sou jan yo ka apwòch sa a, A, gen pakè sa a. 836 00:41:09,100 --> 00:41:11,780 Se konsa, kòmanse la ansanm ak pakè a pou jQuery. 837 00:41:11,780 --> 00:41:16,330 B, asire w ke ou konnen ki sa ou yo ap chanje. 838 00:41:16,330 --> 00:41:18,830 Lè w gen dout, mete sa nan yon bagay, 839 00:41:18,830 --> 00:41:21,390 ak fè dot, kèlkeswa sa ou panse ou ta dwe ap fè ak li. 840 00:41:21,390 --> 00:41:22,150 >> ODYANS: Ki sa ki se pakè a? 841 00:41:22,150 --> 00:41:24,160 >> Oratè 1: pakè a se liy sa a an premye. 842 00:41:24,160 --> 00:41:27,520 Se konsa, sa di, rete tann jiskaske dokiman mwen an se pare. 843 00:41:27,520 --> 00:41:29,160 Lè sa a, kòmanse pitye ak bagay sa yo. 844 00:41:29,160 --> 00:41:30,890 OK? 845 00:41:30,890 --> 00:41:32,780 Se konsa, nou konnen nou ap pitye ak entrain. 846 00:41:32,780 --> 00:41:35,450 Se konsa, nou ap tankou, OK, entrain se fòm nou yo. 847 00:41:35,450 --> 00:41:37,220 Sa a ID nou an. 848 00:41:37,220 --> 00:41:39,800 Se konsa, se sa ki nou ap yo pral chèche pou. 849 00:41:39,800 --> 00:41:45,220 Apre sa, nou vle wè sa k ap pase lè se soumèt fòm sa a, dwa? 850 00:41:45,220 --> 00:41:50,180 >> Se konsa, jan nou ta ka panse, nou gen kèk .submit. 851 00:41:50,180 --> 00:41:56,080 Se konsa, Soumèt jis di, OK, fòm sa a ke nou te referans ak entrain regle, 852 00:41:56,080 --> 00:41:59,594 lè li nan soumèt, egzekite yon lòt bagay. 853 00:41:59,594 --> 00:42:01,135 Se konsa, nou ap ale nan gen kèk fonksyon. 854 00:42:01,135 --> 00:42:05,010 855 00:42:05,010 --> 00:42:07,270 Avi nou gen fonksyon anonim isit la. 856 00:42:07,270 --> 00:42:09,090 Nou gen yon fonksyon anonim isit la. 857 00:42:09,090 --> 00:42:09,590 Wi. 858 00:42:09,590 --> 00:42:14,880 >> ODYANS: Èske li toujou dwe soumèt, oswa se li jis paske nan HTML a, 859 00:42:14,880 --> 00:42:18,260 nou te fè kalite nan bouton soumèt? 860 00:42:18,260 --> 00:42:23,680 >> Oratè 1: Li ta dwe soumèt, paske li nan kèk fòm ke nou ap soumèt. 861 00:42:23,680 --> 00:42:27,750 Paske .submit sa a fè pa nesesèman koresponn ak sa ki bouton an, se tankou 862 00:42:27,750 --> 00:42:28,430 yo rele. 863 00:42:28,430 --> 00:42:32,610 Men reyalite a ke li nan yon fòme ke nou ap soumèt. 864 00:42:32,610 --> 00:42:33,140 OK. 865 00:42:33,140 --> 00:42:35,015 >> Se konsa, remake anonim fonksyon isit la ke says-- 866 00:42:35,015 --> 00:42:37,348 ODYANS: Mwen pa fè sa vrèman konprann fonksyon anonim. 867 00:42:37,348 --> 00:42:39,240 Oratè 1: Se konsa, anonim fonksyon, yo ap 868 00:42:39,240 --> 00:42:42,380 jis fonksyon ki pa gen yon non. 869 00:42:42,380 --> 00:42:49,560 Se konsa, olye pou yo gen kèk fonksyon prensipal ki calls-- nou te ka di, Si dokiman 870 00:42:49,560 --> 00:42:52,380 pare, Lè sa a, nou ta rele entrain. 871 00:42:52,380 --> 00:42:57,470 Lè sa a,, Lè soumèt, call-- tankou, Si se konsa-ak-se konsa soumèt, 872 00:42:57,470 --> 00:42:59,550 nou ta rele kèk lòt fonksyon. 873 00:42:59,550 --> 00:43:01,840 Yon fonksyon anonim jis pa gen yon non, 874 00:43:01,840 --> 00:43:05,120 epi li pral jis egzekite nan sa yo kalite bagay sa yo. 875 00:43:05,120 --> 00:43:10,970 >> Se konsa, nan ka sa a, ki sa sa a di se, Lè dokiman nou an se pare, 876 00:43:10,970 --> 00:43:12,880 egzekite fonksyon sa a. 877 00:43:12,880 --> 00:43:17,110 Sa a se fonksyon konpoze nan tout bagay ki nan isit la. 878 00:43:17,110 --> 00:43:24,410 Lè sa a, pwochen nan la kouch se, OK, lè entrain se soumèt, egzekite sa a. 879 00:43:24,410 --> 00:43:28,329 Se jis yon fason pou indican sa ki ta dwe egzekite lè. 880 00:43:28,329 --> 00:43:30,120 Li nan literalman jis yon fonksyon ki pa fè sa 881 00:43:30,120 --> 00:43:32,860 gen yon non, se konsa yo gen tandans dwe pare solèy nan chak lòt, 882 00:43:32,860 --> 00:43:35,132 paske ou pa ka rele yo pa non. 883 00:43:35,132 --> 00:43:36,984 OK? 884 00:43:36,984 --> 00:43:39,775 Literalman, yon fonksyon anonim se jis yon fonksyon san yo pa yon non. 885 00:43:39,775 --> 00:43:41,470 Sa a li. 886 00:43:41,470 --> 00:43:47,370 Jis yon fason yo ankapsulasyon bagay sa yo diferan 887 00:43:47,370 --> 00:43:49,250 ke nou vle egzekite nan fwa espesifik. 888 00:43:49,250 --> 00:43:51,164 >> ODYANS: [fèbl]. 889 00:43:51,164 --> 00:43:53,420 >> Oratè 1: vantilasyon an? 890 00:43:53,420 --> 00:43:54,360 Ki kote? 891 00:43:54,360 --> 00:43:57,510 >> ODYANS: Nan a parantèz apre fonksyon? 892 00:43:57,510 --> 00:44:00,660 >> Oratè 1: Apre fonksyon. 893 00:44:00,660 --> 00:44:01,290 Ki youn? 894 00:44:01,290 --> 00:44:02,410 >> ODYANS: Tou de. 895 00:44:02,410 --> 00:44:05,137 Si ou mete, tankou, evènman, oswa si ou mete yon agiman nan la, 896 00:44:05,137 --> 00:44:07,372 li ta dwe mal? 897 00:44:07,372 --> 00:44:12,592 >> Oratè 1: Nan ka sa a, Mwen ta kwè ou ta ka mete yon agiman an la. 898 00:44:12,592 --> 00:44:15,619 Men, paske nou pa bezwen yon agiman, gen pa ta dwe. 899 00:44:15,619 --> 00:44:17,410 Tankou, li la tout la, tankou, ou ta dwe sèlman 900 00:44:17,410 --> 00:44:19,810 gen bagay ki sòt nesesè nan bagay. 901 00:44:19,810 --> 00:44:29,325 Nan menm fason an ke si nou te gen nenpòt fonksyon ki gen int void-- prensipal tankou, 902 00:44:29,325 --> 00:44:35,687 ak Int anile prensipal, ou ta ka fè ARG Int v, kèlkeswa sa. 903 00:44:35,687 --> 00:44:38,270 Men, si ou pa bezwen sa yo, ou pa ta dwe gen yo nan la. 904 00:44:38,270 --> 00:44:39,070 Menm bagay. 905 00:44:39,070 --> 00:44:40,896 Emma, ​​ou te gen yon kesyon? 906 00:44:40,896 --> 00:44:41,671 OK. 907 00:44:41,671 --> 00:44:42,170 Cool. 908 00:44:42,170 --> 00:44:42,670 OK. 909 00:44:42,670 --> 00:44:45,862 Se konsa, sa nou gen byen lwen tèlman se lè nou an dokiman an pare, egzekite sa a. 910 00:44:45,862 --> 00:44:47,570 Koulye a, nou ap chèche a lè li nan soumèt. 911 00:44:47,570 --> 00:44:51,530 Se konsa, kounye a nou gen aktyèlman sòt nan vyann nan de bagay sa nou yo. 912 00:44:51,530 --> 00:45:00,120 Se konsa, nou bezwen jwenn valè a ki nan itilizatè soumèt, si wi ou non ki gen yon non 913 00:45:00,120 --> 00:45:01,340 oswa vid. 914 00:45:01,340 --> 00:45:07,270 Lè sa a, nou bezwen swa retounen alèt sa a oswa voye jete yon erè. 915 00:45:07,270 --> 00:45:08,560 Nenpòt fason. 916 00:45:08,560 --> 00:45:13,690 >> Se konsa, ki jan nou deklare yon varyab nan JavaScript? 917 00:45:13,690 --> 00:45:14,670 Var. 918 00:45:14,670 --> 00:45:19,430 Se konsa, kite a di, non var egal oswa aktyèlman, nou pral 919 00:45:19,430 --> 00:45:21,960 fè valè depi mwen panse ke li nan non. 920 00:45:21,960 --> 00:45:23,920 OK. 921 00:45:23,920 --> 00:45:31,320 Se konsa, nou gen kèk valè isit la ke nou vle rale soti nan fòm entrain nou yo. 922 00:45:31,320 --> 00:45:34,100 Se konsa, nan menm fason an ke nou kalite te fè entrain, 923 00:45:34,100 --> 00:45:38,380 kapab nenpòt moun ki di m 'sa nou ta ka rele nan isit la 924 00:45:38,380 --> 00:45:41,230 si nou te vle jwenn Non an soti nan fòm nan? 925 00:45:41,230 --> 00:45:46,929 Men, si nou tounen gade dèyè nan fòm nou yo isit la, nou remake ke nou gen yon ID nan non. 926 00:45:46,929 --> 00:45:47,845 ODYANS: [fèbl]. 927 00:45:47,845 --> 00:45:51,026 928 00:45:51,026 --> 00:45:54,675 >> Oratè 1: Ou pa gen panse a li kòm yon etalaj. 929 00:45:54,675 --> 00:45:57,650 930 00:45:57,650 --> 00:46:00,760 Ou pa bezwen enkyete sou sa. 931 00:46:00,760 --> 00:46:03,250 Se konsa, nou jis gen kèk non. 932 00:46:03,250 --> 00:46:09,022 Lè sa a, paske JavaScript ak bagay sa yo se etranj, nou pa ka jis fè "non." 933 00:46:09,022 --> 00:46:11,230 Nou gen aktyèlman yo rele kèk fonksyon ki ba nou, 934 00:46:11,230 --> 00:46:14,160 tankou, valè sa a nan idantifyan. 935 00:46:14,160 --> 00:46:15,160 OK? 936 00:46:15,160 --> 00:46:16,780 Se konsa, ki se jis Val. 937 00:46:16,780 --> 00:46:18,356 >> ODYANS: [fèbl]. 938 00:46:18,356 --> 00:46:19,160 >> Oratè 1: OK. 939 00:46:19,160 --> 00:46:27,030 Se konsa, avèk JavaScript, sa a sòt de bagay dwa isit la jis ale nan. 940 00:46:27,030 --> 00:46:35,730 Epi ou ta ka panse a sa a as-- li a tankou prèske yon getElementById, kote 941 00:46:35,730 --> 00:46:40,630 getElementById ta aktyèlman retounen bagay la plen nan ou. 942 00:46:40,630 --> 00:46:49,930 $ A ("# Non") se jis tankou, OK, mwen genyen li, mwen kapab jwenn aksè li, 943 00:46:49,930 --> 00:46:52,265 men si ou aktyèlman vle li retounen valè a you-- 944 00:46:52,265 --> 00:46:53,596 >> ODYANS: Èske li tankou yon konsèy? 945 00:46:53,596 --> 00:46:55,070 >> Oratè 1: Li nan kalite tankou yon konsèy. 946 00:46:55,070 --> 00:46:57,069 Ou te kapab panse a li kòm kalite tankou yon konsèy. 947 00:46:57,069 --> 00:46:59,060 Tankou, li di, OK, mwen konnen ki jan yo ka resevwa gen, 948 00:46:59,060 --> 00:47:02,330 men yo aktyèlman jwenn valè a soti nan li, ou gen yo klèman mande pou li. 949 00:47:02,330 --> 00:47:07,800 Men, malerezman, evidamman, nou pa fè sa fè twòp ak JavaScript ak jQuery. 950 00:47:07,800 --> 00:47:12,160 >> Se konsa, li k ap pase yo desann vin jwenn konbyen lajan ou guys-- sa ou rive konnen, 951 00:47:12,160 --> 00:47:17,610 ki sa ou rive nan te wè, e ki sa ou ka kalite lojikman devine nan. 952 00:47:17,610 --> 00:47:21,639 Paske gen kèk nan bagay sa yo, ou te kapab pwobableman jwenn mwatye a. 953 00:47:21,639 --> 00:47:24,180 Men, yo ka resevwa li konplètman dwat, Mwen panse ke pwoblèm sa a pwobableman 954 00:47:24,180 --> 00:47:25,624 te gen youn nan nòt yo ki pi ba. 955 00:47:25,624 --> 00:47:27,790 ODYANS: Tankou, pou egzanp, pou [fèbl] entrain, 956 00:47:27,790 --> 00:47:29,450 poukisa yo pa ou gen yo mete Val la? 957 00:47:29,450 --> 00:47:30,450 Oratè 1: Pou yon sèl sa a? 958 00:47:30,450 --> 00:47:31,124 ODYANS: Yeah. 959 00:47:31,124 --> 00:47:31,790 Oratè 1: Yeah. 960 00:47:31,790 --> 00:47:33,498 Paske sa a se kalite nan renmen, menm jan nou te di, 961 00:47:33,498 --> 00:47:37,180 kèk konsèy, ak sa a se m 'indican li epi li aktyèlman ap resevwa nou valè an. 962 00:47:37,180 --> 00:47:38,872 >> ODYANS: Lè nou konsidere ke [fèbl]? 963 00:47:38,872 --> 00:47:42,060 >> Oratè 1: Pou entrain, entrain se jis some-- 964 00:47:42,060 --> 00:47:44,450 li a tankou nou ap jis gade li kòm yon antye, 965 00:47:44,450 --> 00:47:48,859 ak .submit sa a di nou sa nou bezwen konnen. 966 00:47:48,859 --> 00:47:50,150 jQuery ak JavaScript se etranj. 967 00:47:50,150 --> 00:47:50,800 Mwen konnen. 968 00:47:50,800 --> 00:47:51,690 Mwen konnen, guys. 969 00:47:51,690 --> 00:47:52,460 Mwen konnen. 970 00:47:52,460 --> 00:47:55,260 Genyen yon rezon ki fè mwen pa fè sa fè pwogram entènèt. 971 00:47:55,260 --> 00:47:56,230 Jis plèzantri. 972 00:47:56,230 --> 00:47:57,780 Mwen pa te gen ase ekspoze a li. 973 00:47:57,780 --> 00:47:59,070 >> ODYANS: [fèbl] CSS. 974 00:47:59,070 --> 00:48:00,206 >> [Ri] 975 00:48:00,206 --> 00:48:00,590 >> Oratè 1: OK, sa a, se CSS. 976 00:48:00,590 --> 00:48:03,730 CSS se jis, tankou, fè bagay sa yo bèl, li pa tankou kite nan fè fas ak done. 977 00:48:03,730 --> 00:48:05,710 Genyen yon diferans la. 978 00:48:05,710 --> 00:48:06,350 OK. 979 00:48:06,350 --> 00:48:12,110 Se konsa, kounye èspere ke, sa a part-- tou, pou yon pwoblèm tankou sa a, kote ou pa ka 980 00:48:12,110 --> 00:48:16,070 konnen sentaks la, ou ta ka dwe tankou, OK, ou ta ka gen kèk valè var 981 00:48:16,070 --> 00:48:18,320 yo epi yo dwe tankou, asime mwen te resevwa valè a kòrèkteman. 982 00:48:18,320 --> 00:48:20,600 Lè sa a, ou te kapab pwobableman ekri pati sa a kap vini an. 983 00:48:20,600 --> 00:48:24,640 Sa a pati pwochen pwal pwobableman sanble pi plis fasil, 984 00:48:24,640 --> 00:48:26,610 oswa li ta fè lojik sans nan ou guys. 985 00:48:26,610 --> 00:48:31,520 >> Lè nou konsidere ke sa nou te ekri byen lwen tèlman, Mwen konnen mwen ta dwe tankou, Umm, yeah, 986 00:48:31,520 --> 00:48:34,340 Mwen pa konnen ki sou egzamen an. 987 00:48:34,340 --> 00:48:37,610 Ou ka totalman ekri psuedocode ak Lè sa a kraze nan reyèl Kòd 988 00:48:37,610 --> 00:48:40,460 lè you-- li nan kalite tankou matematik. 989 00:48:40,460 --> 00:48:42,904 Si ou te janm te gen kèk pwoblèm milti-pati ki 990 00:48:42,904 --> 00:48:44,820 ou pa konnen ki jan yo jwenn sot pase premye etap la, 991 00:48:44,820 --> 00:48:46,736 men tout lòt bagay rpoz sou ke premye etap, 992 00:48:46,736 --> 00:48:49,577 ou jis di, tankou, asime x egal 4. 993 00:48:49,577 --> 00:48:50,910 Lè sa a, ou kouri ak li, dwa? 994 00:48:50,910 --> 00:48:52,410 >> Ou ka fè menm bagay la ak kòd. 995 00:48:52,410 --> 00:48:55,740 Se konsa, ou te kapab di, asime Mwen te resevwa dwa pou valè. 996 00:48:55,740 --> 00:48:58,290 Lè sa a, fè pati sa a pwochen isit la. 997 00:48:58,290 --> 00:49:02,610 Paske pati sa a aktyèlman ta dwe trè ki lojik. 998 00:49:02,610 --> 00:49:06,560 >> Se konsa, nou bezwen yo tcheke si valè nou an a vid. 999 00:49:06,560 --> 00:49:11,650 Oswa si li nan kèk non, aktyèlman bay yon alèt. 1000 00:49:11,650 --> 00:49:15,085 Se konsa, sa nou ta ka vle tcheke? 1001 00:49:15,085 --> 00:49:17,800 Nou vle gen kèk Si. 1002 00:49:17,800 --> 00:49:19,510 Ki sa ou panse Si nou a pwal? 1003 00:49:19,510 --> 00:49:24,141 Nou bezwen tcheke yo wè si valè se si li a pa yon fisèl vid. 1004 00:49:24,141 --> 00:49:30,740 1005 00:49:30,740 --> 00:49:31,730 >> Pafè. 1006 00:49:31,730 --> 00:49:32,570 Egzakteman. 1007 00:49:32,570 --> 00:49:33,070 OK. 1008 00:49:33,070 --> 00:49:36,320 Se konsa, si sa a, se ka a, ki sa nou vle fè? 1009 00:49:36,320 --> 00:49:39,190 Nou vle voye jete kèk alèt, dwa? 1010 00:49:39,190 --> 00:49:41,090 Se konsa, li nan jis alèt yo. 1011 00:49:41,090 --> 00:49:43,050 Lè sa a, tou sa nou vle anndan an. 1012 00:49:43,050 --> 00:49:45,430 Se konsa, sa yo se nou sipoze gen andedan alèt nou an? 1013 00:49:45,430 --> 00:49:48,916 >> ODYANS: "Alo". 1014 00:49:48,916 --> 00:49:50,421 >> Oratè 1: vigil. 1015 00:49:50,421 --> 00:49:52,462 Lè sa a, fè ou nèg sonje ki jan yo anchene? 1016 00:49:52,462 --> 00:49:53,400 >> ODYANS: Plus. 1017 00:49:53,400 --> 00:49:54,520 >> Oratè 1: Plus. 1018 00:49:54,520 --> 00:49:57,490 Se konsa, nou vle gen plis. 1019 00:49:57,490 --> 00:50:03,480 Lè sa a, nou bezwen yon lòt plis pou pwen esklamasyon nou an. 1020 00:50:03,480 --> 00:50:05,620 Cool. 1021 00:50:05,620 --> 00:50:06,540 OK. 1022 00:50:06,540 --> 00:50:08,255 Sinon, sa ki ka nou vle fè? 1023 00:50:08,255 --> 00:50:10,380 Nou pa vle fè anyen, dwa? 1024 00:50:10,380 --> 00:50:14,190 Se konsa, nou jis retounen fo. 1025 00:50:14,190 --> 00:50:17,200 Pa sa mwen vle yo fè. 1026 00:50:17,200 --> 00:50:18,520 OK. 1027 00:50:18,520 --> 00:50:20,660 >> Lè sa a, sa yo, nan course-- sa ki enpòtan 1028 00:50:20,660 --> 00:50:23,510 se sonje yo fèmen fonksyon anonim ou yo. 1029 00:50:23,510 --> 00:50:27,230 Se konsa, si w remake, nou gen kèk fonksyon isit la ki fini isit la. 1030 00:50:27,230 --> 00:50:31,710 Se konsa, nou bezwen fèmen sa a youn premye ak ajoute yon virgules. 1031 00:50:31,710 --> 00:50:35,195 Lè sa a, yon sèl sa a isit la gen fè ak sa a fonksyon anonim, 1032 00:50:35,195 --> 00:50:38,650 se konsa nou fèmen li a. 1033 00:50:38,650 --> 00:50:40,190 Sa reyaksyon jenou-embesil nan ekonomize. 1034 00:50:40,190 --> 00:50:40,690 Wi. 1035 00:50:40,690 --> 00:50:45,650 ODYANS: Èske gen yon rezon ki fè that-- jis nan tout egzanp yo nan JavaScript 1036 00:50:45,650 --> 00:50:48,480 ke mwen te wè, nou gen premye aparèy òtopedik yo Curly 1037 00:50:48,480 --> 00:50:51,075 sou liy lan menm jan ak fonksyon an? 1038 00:50:51,075 --> 00:50:53,040 >> Oratè 1: Sa a stylistic. 1039 00:50:53,040 --> 00:50:54,130 Yeah. 1040 00:50:54,130 --> 00:51:00,650 Ak aktyèlman, si ou pran 61, nou fè tout aparèy òtopedik Curly nou an ki fason. 1041 00:51:00,650 --> 00:51:01,830 Huh? 1042 00:51:01,830 --> 00:51:05,030 >> ODYANS: Si nou te fè fè sa sou PSET a, se sa ki move pou style? 1043 00:51:05,030 --> 00:51:05,720 >> Oratè 1: No 1044 00:51:05,720 --> 00:51:09,710 Nou te klèman di ou nèg fè sa. 1045 00:51:09,710 --> 00:51:14,540 Men, aktyèlman, sa a se kalite nan konvansyon an domine 1046 00:51:14,540 --> 00:51:19,620 nan yon anpil nan klas ak C JavaScript ak jQuery. 1047 00:51:19,620 --> 00:51:23,074 Se konsa, evidamman, mwen sure-- ak aktyèlman, si mwen 1048 00:51:23,074 --> 00:51:26,770 te fè pwoblèm sa a konplètman avèg san yo pa gen gade nan li, 1049 00:51:26,770 --> 00:51:30,080 gen se pwobableman trè kèk fason mwen ta gen vinn sa a. 1050 00:51:30,080 --> 00:51:36,160 >> Mwen ta ka yo te tankou, OK, petèt mwen bezwen gen tan pwan yon bagay ki nan yon opinyon. 1051 00:51:36,160 --> 00:51:38,020 Apre sa, mwen panse ke li te gen nan konesans ki, tankou, 1052 00:51:38,020 --> 00:51:43,240 OK, si mwen vle jwenn yon bagay soti nan yon fòm ki gen yon ID, 1053 00:51:43,240 --> 00:51:46,990 Mwen gade nan li nan fason sa a, Mwen ta pwobableman jwenn sa. 1054 00:51:46,990 --> 00:51:49,940 Mwen ta ka jwenn sa a. 1055 00:51:49,940 --> 00:51:53,400 Men, reyèlman, bagay la sèlman ki mwen panse ke Mwen ta reyèlman jwenn se sa a dwa isit la. 1056 00:51:53,400 --> 00:51:59,230 >> Se konsa, li nan kalite enpòtan yo konnen, menm jan ak nenpòt tès difisil, 1057 00:51:59,230 --> 00:52:02,130 ou kalite chwazi batay ou a, dwa? 1058 00:52:02,130 --> 00:52:06,780 Si ou konnen ke ou pa ap ale nan jwenn ki premye pati pou jQuery, jan mwen te di, 1059 00:52:06,780 --> 00:52:10,080 asime ke ou gen sa a valè epi ki fè sa ou kapab ak li. 1060 00:52:10,080 --> 00:52:14,730 Men, si ou gen tan, tounen epi eseye epi ranpli nan moso yo. 1061 00:52:14,730 --> 00:52:17,150 Men, pa kite yon kesyon tankou sa a vrèman marè ou desann. 1062 00:52:17,150 --> 00:52:18,080 Paske ki sa? 1063 00:52:18,080 --> 00:52:23,260 Sa a te yon kesyon sou jQuery soti nan egzamen an tout antye. 1064 00:52:23,260 --> 00:52:25,810 Se konsa, repons lan se wi, li ta dwe gwo si ou te resevwa li. 1065 00:52:25,810 --> 00:52:28,297 >> ODYANS: [fèbl] ou yo se akeyi yo sèvi ak jQuery. 1066 00:52:28,297 --> 00:52:30,005 Oratè 1: Ou se akeyi yo sèvi ak jQuery. 1067 00:52:30,005 --> 00:52:31,088 ODYANS: OK. [Fèbl]. 1068 00:52:31,088 --> 00:52:33,060 Oratè 1: Ki jan ou ta pa sèvi ak li? 1069 00:52:33,060 --> 00:52:35,850 Mwen ta gen gade moute tout JavaScript mwen. 1070 00:52:35,850 --> 00:52:38,810 Li nan aktyèlman pi fasil, Mwen panse ke, yo sèvi ak jQuery, 1071 00:52:38,810 --> 00:52:42,995 paske jQuery aktyèlman diminye a kantite JavaScript ou ekri pwobableman 1072 00:52:42,995 --> 00:52:43,620 pa, tankou, mwatye. 1073 00:52:43,620 --> 00:52:46,334 Se konsa, kòd nou ta kapab pwobableman de fwa osi lontan san yo pa sa. 1074 00:52:46,334 --> 00:52:49,250 Se konsa, si ou recognize-- pi gwo a bagay yo pran lwen pwoblèm sa a 1075 00:52:49,250 --> 00:52:50,550 se modèl yo. 1076 00:52:50,550 --> 00:52:52,890 Si w ap gen aksè nan yon bagay soti nan yon fòm, 1077 00:52:52,890 --> 00:52:57,830 w ap ale nan sèvi ak quotes, regle, kèlkeswa sa w ap eseye jwenn aksè nan. 1078 00:52:57,830 --> 00:53:01,000 Si li nan ke yo te soumèt, ou vle yo sèvi ak yon bagay tankou yon .submit. 1079 00:53:01,000 --> 00:53:03,680 Ou ap pwobableman ale nan sèvi ak yon fonksyon anonim nan la. 1080 00:53:03,680 --> 00:53:08,030 Si ou aktyèlman bezwen valè a nan yon bagay, w ap ale nan fè quotes, 1081 00:53:08,030 --> 00:53:12,160 regle, kèlkeswa sa ki jaden se, Val. 1082 00:53:12,160 --> 00:53:14,690 Ak rekonèt modèl tankou sa yo ale 1083 00:53:14,690 --> 00:53:19,586 yo dwe byen lwen pi plis itil pase reyèlman konnen courageux a nitty. 1084 00:53:19,586 --> 00:53:20,562 Wi. 1085 00:53:20,562 --> 00:53:23,164 >> ODYANS: Se konsa, si nan itilizatè soumèt non yo 1086 00:53:23,164 --> 00:53:27,394 epi li kouri nan ki deklarasyon, yo pral li desann ak retounen fo apre sa a? 1087 00:53:27,394 --> 00:53:30,373 >> Oratè 1: Non, paske alèt la, ou ka panse a li tankou yon retou. 1088 00:53:30,373 --> 00:53:30,873 Yeah. 1089 00:53:30,873 --> 00:53:31,590 Se konsa, li pral sòti. 1090 00:53:31,590 --> 00:53:31,925 Yeah. 1091 00:53:31,925 --> 00:53:33,883 >> ODYANS: Ou te kapab [? mete?] parantèz yo 1092 00:53:33,883 --> 00:53:37,105 nan soumèt, parantèz, yon bagay? 1093 00:53:37,105 --> 00:53:38,870 >> Oratè 1: mwen te fè, mwen kwè. 1094 00:53:38,870 --> 00:53:42,300 Sa a yon sèl nan fèmen dwa isit la. 1095 00:53:42,300 --> 00:53:45,800 Lè sa a, vin yon sèl sa a fèmen desann isit la. 1096 00:53:45,800 --> 00:53:47,135 >> ODYANS: Oh, gen. 1097 00:53:47,135 --> 00:53:48,470 Tout dwa. 1098 00:53:48,470 --> 00:53:53,572 >> Oratè 1: Li evidan, ti kras, ti bagay Massachusetts Institute of Technology 1099 00:53:53,572 --> 00:53:55,780 tankou sa yo, nou pral pwobableman jis sèk li yo epi yo dwe tankou, 1100 00:53:55,780 --> 00:53:58,385 pa bliye parantèz ou. 1101 00:53:58,385 --> 00:53:59,810 Men, yeah. 1102 00:53:59,810 --> 00:54:00,950 OK. 1103 00:54:00,950 --> 00:54:04,190 Èske nou gen yon lòt yon sèl ke nou ta renmen fè? 1104 00:54:04,190 --> 00:54:07,700 1105 00:54:07,700 --> 00:54:11,599 Eske ou te nèg jwenn youn nan pye bwa binè? 1106 00:54:11,599 --> 00:54:12,890 nou vle ale sou ke yon moun? 1107 00:54:12,890 --> 00:54:17,940 Mwen santi mwen tankou pyebwa binè ak DOMS ta dwe pwen 1108 00:54:17,940 --> 00:54:19,880 ke ou nèg jwenn bèl fasil. 1109 00:54:19,880 --> 00:54:21,978 Mwen pa ta vle nou pèdi pwen sou sa. 1110 00:54:21,978 --> 00:54:28,335 1111 00:54:28,335 --> 00:54:30,370 OK. 1112 00:54:30,370 --> 00:54:33,097 >> Se pou yo fè Dom sa a isit la. 1113 00:54:33,097 --> 00:54:35,555 Mwen swete mwen te gen Sifas mwen Se konsa, mwen te kapab jis trase sou ekran an. 1114 00:54:35,555 --> 00:54:38,330 1115 00:54:38,330 --> 00:54:41,461 Sa a ki sa mwen itilize yo fè ane pase. 1116 00:54:41,461 --> 00:54:41,960 OK. 1117 00:54:41,960 --> 00:54:48,370 Se konsa, kòm mwen mansyone, nou te pale sou Dom, Dokiman objè ki gen konpòtman egzanplè. 1118 00:54:48,370 --> 00:54:51,415 Yo ap pwobableman ale nan ba ou kèk ti kras nan brib tankou sa a 1119 00:54:51,415 --> 00:54:54,250 epi mande w yo kreye yon pye bwa pou li. 1120 00:54:54,250 --> 00:54:58,050 Lè sa a jis tout te fè ak kouri nan etikèt yo. 1121 00:54:58,050 --> 00:55:00,685 Se konsa, kite a eseye epi fè sa. 1122 00:55:00,685 --> 00:55:09,610 1123 00:55:09,610 --> 00:55:12,920 >> Epitou, tankou pou chak dabitid, si ou nèg fè ti tès sa yo, jan mwen trè 1124 00:55:12,920 --> 00:55:16,450 rekòmande pou w fè kòm pratik, okenn nan yo ke w ap tankou, 1125 00:55:16,450 --> 00:55:19,480 Mwen vrèman pa jwenn sa ki nan ale sou isit la, jis, nan kou, 1126 00:55:19,480 --> 00:55:23,334 voye m 'yon imel ak yon kesyon, ak mwen pral eksplike pi bon mwen ka kòm. 1127 00:55:23,334 --> 00:55:25,298 OK. 1128 00:55:25,298 --> 00:55:33,420 >> Nou gen kèk dokiman, epi nou gen HTML. 1129 00:55:33,420 --> 00:55:33,970 OK. 1130 00:55:33,970 --> 00:55:38,750 Se konsa, Lè sa a, nou ap jis analize etikèt yo isit la, dwa? 1131 00:55:38,750 --> 00:55:45,810 Se konsa, sa nou wè ki sa yo comes-- de tit yo ki anba HTML? 1132 00:55:45,810 --> 00:55:48,880 Espesyalman paske yo ap utilize byen? 1133 00:55:48,880 --> 00:55:49,580 Head ak kò. 1134 00:55:49,580 --> 00:56:00,298 1135 00:56:00,298 --> 00:56:00,800 Ah. 1136 00:56:00,800 --> 00:56:03,730 1137 00:56:03,730 --> 00:56:04,960 Head ak kò. 1138 00:56:04,960 --> 00:56:05,952 Lovely. 1139 00:56:05,952 --> 00:56:07,410 Se konsa, Lè sa a, kite la kòmanse isit la ak nan tèt yo. 1140 00:56:07,410 --> 00:56:09,090 Ki sa ki nan anba tèt? 1141 00:56:09,090 --> 00:56:11,721 Ki sa ki nan pwochen tag nou an? 1142 00:56:11,721 --> 00:56:12,220 Tit. 1143 00:56:12,220 --> 00:56:16,450 1144 00:56:16,450 --> 00:56:19,605 Lè sa a, ki nan Tit, egzamen. 1145 00:56:19,605 --> 00:56:23,970 1146 00:56:23,970 --> 00:56:24,690 OK. 1147 00:56:24,690 --> 00:56:27,940 >> Se konsa, literalman, li nan jis mache nan etikèt yo, OK? 1148 00:56:27,940 --> 00:56:31,610 Se konsa, Lè sa a, si nou gen kò, menm jan nou ale nan, 1149 00:56:31,610 --> 00:56:35,460 kò gen twa bagay sa yo nan li, dwa? 1150 00:56:35,460 --> 00:56:36,400 Li nan te resevwa twa div. 1151 00:56:36,400 --> 00:56:40,060 1152 00:56:40,060 --> 00:56:41,900 Chak div vin pwòp li yo bwat ti kras. 1153 00:56:41,900 --> 00:56:45,260 1154 00:56:45,260 --> 00:56:48,106 Ak sa ki nan nan div an premye? 1155 00:56:48,106 --> 00:56:48,606 [Fèbl] 1156 00:56:48,606 --> 00:56:52,070 1157 00:56:52,070 --> 00:56:57,292 Lè sa a, youn nan pwochen se mwayen, ki mwen jis ale nan abreje. 1158 00:56:57,292 --> 00:56:59,410 Lè sa a, yon sèl ki sot pase a se anba. 1159 00:56:59,410 --> 00:57:06,060 1160 00:57:06,060 --> 00:57:07,650 >> Se konsa, reyèlman, li jis mache nan. 1161 00:57:07,650 --> 00:57:11,140 Epi paske nou ap ale nan bay ou HTML ki byen dantle, 1162 00:57:11,140 --> 00:57:16,800 ou ka literalman jis kouri nan yo epi yo dwe tankou, OK, isit la se HTML a. 1163 00:57:16,800 --> 00:57:19,460 Se konsa, sa a se eksteryè a kwen, oswa pi lwen kite, 1164 00:57:19,460 --> 00:57:22,410 se konsa ke gen yo dwe bagay pwòp li yo. 1165 00:57:22,410 --> 00:57:26,360 Sa yo se sou menm endansyon la. 1166 00:57:26,360 --> 00:57:30,120 >> Se konsa, nou konnen ke tèt bezwen dwe nan nivo a menm jan ak kò, 1167 00:57:30,120 --> 00:57:32,040 men anba HTML. 1168 00:57:32,040 --> 00:57:33,100 Li nan sa nou genyen isit la. 1169 00:57:33,100 --> 00:57:36,810 Head ansanm ak tout kò yo se frè ak sè, men yo ap anba HTML. 1170 00:57:36,810 --> 00:57:39,130 Lè sa a, nou jis ale nan chak nan sa yo. 1171 00:57:39,130 --> 00:57:44,370 Se konsa, tèt gen tit, ki gen egzamen, jan nou wè isit la. 1172 00:57:44,370 --> 00:57:48,210 Lè sa a, nan ka sa a, nou gen kò, ki te gen twa liy sa yo. 1173 00:57:48,210 --> 00:57:51,470 Se konsa, sa yo, se tout frè ak sè tout anba kò. 1174 00:57:51,470 --> 00:57:53,732 OK? 1175 00:57:53,732 --> 00:57:56,190 Se konsa, èspere ke lè ou wè yon bagay tankou sa a, w ap tankou, 1176 00:57:56,190 --> 00:57:57,900 repons lan se wi, mwen jis ale nan trase yon pye bwa. 1177 00:57:57,900 --> 00:58:00,430 Li nan pral gen gwo pouvwa. 1178 00:58:00,430 --> 00:58:01,130 OK. 1179 00:58:01,130 --> 00:58:03,220 Se konsa, te vle asire w ou nèg te konnen ke. 1180 00:58:03,220 --> 00:58:10,510 >> Se konsa, poukisa pa nou ale nan 32 ak pye bwa binè nou an? 1181 00:58:10,510 --> 00:58:17,905 Paske yon fwa ou konprann yon binè pye bwa rechèch, li vrèman pa sa ki move. 1182 00:58:17,905 --> 00:58:20,960 Se konsa, Everett, mwen ka erase-- mwen vle di, sa yo, se tout sou entènèt, tou. 1183 00:58:20,960 --> 00:58:24,130 Se konsa, si ou gen nenpòt kesyon. 1184 00:58:24,130 --> 00:58:44,410 1185 00:58:44,410 --> 00:58:46,370 >> Objè yon espas ti kras la, men li la OK. 1186 00:58:46,370 --> 00:58:50,190 Se konsa, pyebwa binè rechèch la se jis yon fason yo òganize done 1187 00:58:50,190 --> 00:58:57,000 pa nan yon etalaj, kote rasin lan se toujou pi gwo 1188 00:58:57,000 --> 00:59:03,500 pase timoun nan bò gòch ak rasin lan se toujou mwens pase timoun nan dwa. 1189 00:59:03,500 --> 00:59:04,770 OK. 1190 00:59:04,770 --> 00:59:08,160 >> Se konsa, nou gen pye bwa sa a rechèch gwo isit la. 1191 00:59:08,160 --> 00:59:13,360 Nou gen nimewo sa yo, 34, 59, 20, 106, 36, ak 52. 1192 00:59:13,360 --> 00:59:15,160 Apre sa, nou bezwen òganize yo nan yon fason 1193 00:59:15,160 --> 00:59:22,100 sa yo ki rasin lan gen plis pouvwa pase tout bagay sou bò gòch la 1194 00:59:22,100 --> 00:59:24,750 epi li se mwens pase tout bagay sou bò dwat la. 1195 00:59:24,750 --> 00:59:29,580 Ak tipikman, ki sa ou vle fè se eseye epi jwenn 1196 00:59:29,580 --> 00:59:31,720 yon bagay sou nan mitan yo. 1197 00:59:31,720 --> 00:59:35,420 Avèk pye bwa rechèch binè, ou ka gen yo jwe nan yon ti jan ak li. 1198 00:59:35,420 --> 00:59:40,850 >> Men, nan ka sa a, kite yo jis asime ke nou konnen yon sèl sa a an premye. 1199 00:59:40,850 --> 00:59:44,870 Se konsa, 36 se premye yon sèl nou isit la. 1200 00:59:44,870 --> 00:59:46,790 Tipikman, mwen ta eseye epi chwazi yon bagay 1201 00:59:46,790 --> 00:59:50,160 sou nan mitan an ki pral pwobableman sede rezilta yo pi byen. 1202 00:59:50,160 --> 00:59:56,200 Se konsa, kounye a nou konnen ke tout bagay sou bò sa a bezwen yo dwe pi piti pase 36. 1203 00:59:56,200 --> 00:59:59,520 Men, tou, ki sa ou te kapab wè se ke nou gen de tach sou isit la. 1204 00:59:59,520 --> 01:00:04,350 Se konsa, si nou konnen ke nou bezwen de nimewo ki gen mwens pase rasin lan, 1205 01:00:04,350 --> 01:00:08,670 Lè sa a, ou ta ka jis lòd sa yo epi chwazi nimewo a twazyèm. 1206 01:00:08,670 --> 01:00:09,390 OK. 1207 01:00:09,390 --> 01:00:11,550 >> Se konsa, poukisa pa nou kòmanse ak bò sa a? 1208 01:00:11,550 --> 01:00:17,270 Se konsa, si nou konnen ke tout bagay sou bò sa a bezwen yo dwe mwens pase 36-- 1209 01:00:17,270 --> 01:00:21,290 men si nou gade nan yon sèl sa a, nou konnen ke nimewo sa a 1210 01:00:21,290 --> 01:00:25,180 gen yo dwe mwens pase kantite sa a, dwa? 1211 01:00:25,180 --> 01:00:30,810 Paske nimewo sa a isit la se sou bò dwat la. 1212 01:00:30,810 --> 01:00:34,680 Epi sonje, menm jan ak nan pi gwo nou an pyebwa, tout bagay sou bò dwat la 1213 01:00:34,680 --> 01:00:37,130 bezwen yo dwe pi gwo pase rasin lan. 1214 01:00:37,130 --> 01:00:40,540 Nan fason sa a, nou konnen ke tou sa se nan sa a bezwen 1215 01:00:40,540 --> 01:00:43,090 yo dwe pi gwo pase tou sa a isit la. 1216 01:00:43,090 --> 01:00:44,020 OK? 1217 01:00:44,020 --> 01:00:46,340 >> Se konsa, nou gen de chwa pou de sa yo bul. 1218 01:00:46,340 --> 01:00:49,830 Nou gen 32 ak 34-- oswa regrèt. 1219 01:00:49,830 --> 01:00:53,330 20 ak 34. 1220 01:00:53,330 --> 01:00:56,500 Se konsa, ki jan ou panse nou ta ka mete sa yo nan? 1221 01:00:56,500 --> 01:00:59,230 Si yon sèl sa a te dwe pi gwo pase yon sèl sa a, 1222 01:00:59,230 --> 01:01:04,340 sa vle di nou vle gen 20 isit la ak 34 isit la. 1223 01:01:04,340 --> 01:01:05,340 OK. 1224 01:01:05,340 --> 01:01:09,380 >> Se konsa, nan menm fason an, nou gade nan sa a kalite pyebwa sub. 1225 01:01:09,380 --> 01:01:14,994 Epi nou di, OK, nou pa gen 36. 1226 01:01:14,994 --> 01:01:20,460 Nou gen 106, 52, ak 59. 1227 01:01:20,460 --> 01:01:21,590 Dwa? 1228 01:01:21,590 --> 01:01:24,820 Nan ka sa a isit la, nou konnen ke yon sèl sa a bezwen 1229 01:01:24,820 --> 01:01:29,570 gen yon sèl bagay sa a, se pi gran pase li epi li se yon sèl bagay ki se mwens pase li. 1230 01:01:29,570 --> 01:01:30,100 Dwa? 1231 01:01:30,100 --> 01:01:34,580 Se konsa, si nou mete sa yo nan lòd, li nan jis sou jwenn ke valè mitan ankò. 1232 01:01:34,580 --> 01:01:35,766 Se konsa, valè mitan nou an, se 59. 1233 01:01:35,766 --> 01:01:38,524 1234 01:01:38,524 --> 01:01:40,190 Se konsa, Lè sa a, nou di, OK, sa ki nan mwens pase 59? 1235 01:01:40,190 --> 01:01:41,826 Oke, sa a, se 52. 1236 01:01:41,826 --> 01:01:42,950 Ak sa ki nan pi gran pase 59? 1237 01:01:42,950 --> 01:01:45,120 Oke, sa a, se 106. 1238 01:01:45,120 --> 01:01:45,930 OK? 1239 01:01:45,930 --> 01:01:49,430 Se konsa, li nan jis yon ti jan tankou yon devinèt. 1240 01:01:49,430 --> 01:01:53,160 Li tipikman ede, espesyalman nan ti pyebwa tankou sa a, 1241 01:01:53,160 --> 01:01:56,617 si ou jis lòd li, si ou konnen ki jan anpil nan yo sou bò gòch la 1242 01:01:56,617 --> 01:01:58,450 ak ki jan anpil yo sou la dwat, ki ka jis 1243 01:01:58,450 --> 01:02:01,050 pèmèt ou chwazi sa ki yo ta dwe nan rasin ou. 1244 01:02:01,050 --> 01:02:02,922 Lè sa a, ou kapab kalite nan travay soti nan la. 1245 01:02:02,922 --> 01:02:05,080 Milimèt-HM. 1246 01:02:05,080 --> 01:02:05,580 33? 1247 01:02:05,580 --> 01:02:07,570 Asire w. 1248 01:02:07,570 --> 01:02:10,120 OK. 1249 01:02:10,120 --> 01:02:17,410 Se konsa, nou vle kreye yon ne oswa yon pye bwa rechèch binè. 1250 01:02:17,410 --> 01:02:20,416 Se pou yo gade nan sa ki ta ka nan li. 1251 01:02:20,416 --> 01:02:26,130 1252 01:02:26,130 --> 01:02:28,600 Apre sa, mwen panse ke sa a volonte aktyèlman ap pase pwoblèm nou yo. 1253 01:02:28,600 --> 01:02:29,510 Ah. 1254 01:02:29,510 --> 01:02:30,010 OK. 1255 01:02:30,010 --> 01:02:48,190 1256 01:02:48,190 --> 01:02:48,690 OK. 1257 01:02:48,690 --> 01:02:55,580 1258 01:02:55,580 --> 01:02:58,040 >> Sa a se tankou sa nou kapab panse a kòm yon ne, dwa? 1259 01:02:58,040 --> 01:03:01,610 Nou gen kèk valè, epi nou konnen ke li ap swa 1260 01:03:01,610 --> 01:03:03,830 te kite ak timoun dwat. 1261 01:03:03,830 --> 01:03:08,420 Binè rechèch tree-- sa vle di ke li gen, nan pi, de timoun yo. 1262 01:03:08,420 --> 01:03:08,920 OK? 1263 01:03:08,920 --> 01:03:12,690 1264 01:03:12,690 --> 01:03:15,540 Se pou nou panse osijè de fason nou defini yon lis lye, dwa? 1265 01:03:15,540 --> 01:03:17,740 >> Nou te gen kèk Int ki reprezante valè an. 1266 01:03:17,740 --> 01:03:20,760 Nou te gen kèk konsèy ki reprezante ki sa li te ale nan pwochen an. 1267 01:03:20,760 --> 01:03:23,350 Pye bwa rechèch binè se yon bagay ki menm jan an. 1268 01:03:23,350 --> 01:03:27,980 Nou toujou gen kèk valè, n, ke nou bay li, dwa? 1269 01:03:27,980 --> 01:03:31,750 Lè sa a, mwen te trase sa yo trè klèman ak flèch, 1270 01:03:31,750 --> 01:03:34,010 yo paske yo te efektivman endikasyon. 1271 01:03:34,010 --> 01:03:34,940 OK? 1272 01:03:34,940 --> 01:03:38,500 >> Se konsa, n se tipikman ki sa? 1273 01:03:38,500 --> 01:03:39,230 Li nan kèk valè. 1274 01:03:39,230 --> 01:03:41,800 Ki sa nou tipikman deziyen li kòm? 1275 01:03:41,800 --> 01:03:42,500 Yon int. 1276 01:03:42,500 --> 01:03:49,980 Se konsa, nou gen kèk n Int, oswa valè int, oswa kèlkeswa sa ou ta renmen rele li. 1277 01:03:49,980 --> 01:03:53,230 Lè sa a, nou gen bò gòch la pitit ak pitit la dwat. 1278 01:03:53,230 --> 01:03:54,570 Dwa? 1279 01:03:54,570 --> 01:03:58,060 E nou konnen ke sa yo ap point-- sa yo yo montre nan? 1280 01:03:58,060 --> 01:04:01,560 Yo ap lonje dwèt nan lòt nœuds, dwa? 1281 01:04:01,560 --> 01:04:07,540 Se konsa, kouman nou ta deklare yon konsèy ne? 1282 01:04:07,540 --> 01:04:10,480 1283 01:04:10,480 --> 01:04:11,460 >> ODYANS: [fèbl]. 1284 01:04:11,460 --> 01:04:12,472 >> Oratè 1: Milimèt-HM. 1285 01:04:12,472 --> 01:04:14,305 Epi nou ap ale nan gen de nan sa yo, dwa? 1286 01:04:14,305 --> 01:04:18,070 1287 01:04:18,070 --> 01:04:26,710 Lè sa a, nou kapab literalman kite pou timoun nan bò gòch 1288 01:04:26,710 --> 01:04:30,950 ak dwa pou timoun nan dwa. 1289 01:04:30,950 --> 01:04:31,820 Aktyèlman regrèt. 1290 01:04:31,820 --> 01:04:33,155 Paske nou bezwen struct. 1291 01:04:33,155 --> 01:04:36,250 1292 01:04:36,250 --> 01:04:41,580 >> Se konsa, struct se paske nou pa gen fini deklare yon ne ankò. 1293 01:04:41,580 --> 01:04:47,070 Se konsa, ne se nan isit la. 1294 01:04:47,070 --> 01:04:49,640 Li nan kalite tankou yon definisyon repetitif, dwa? 1295 01:04:49,640 --> 01:04:53,140 Se konsa, lè nou nan definisyon sa a, nou 1296 01:04:53,140 --> 01:04:57,310 pa fini deklare ne kòm estrikti a, 1297 01:04:57,310 --> 01:04:59,380 se konsa nou dwe fè struct ne jis vle di, wi, 1298 01:04:59,380 --> 01:05:03,930 nou yo se an reyalite refere li tounen nan ourself tape bagay. 1299 01:05:03,930 --> 01:05:07,410 Sa tankou yon fwa li a kreye, li pral amann. 1300 01:05:07,410 --> 01:05:10,890 >> Se konsa, ki jan gwo ou nèg panse ke sa a se? 1301 01:05:10,890 --> 01:05:13,650 Ki sa ki nan gwosè a nan estrikti sa a? 1302 01:05:13,650 --> 01:05:14,370 12. 1303 01:05:14,370 --> 01:05:14,870 Poukisa? 1304 01:05:14,870 --> 01:05:18,990 1305 01:05:18,990 --> 01:05:19,664 Jisteman. 1306 01:05:19,664 --> 01:05:21,830 Ak an reyalite, youn nan la premye kesyon youn egzamen Youn 1307 01:05:21,830 --> 01:05:24,170 se sou gwosè, ki se poukisa mwen te mande. 1308 01:05:24,170 --> 01:05:25,230 Tout dwa. 1309 01:05:25,230 --> 01:05:29,350 >> Nou pral nan fen, paske la DCE pral rele nan m ', si nou pa fè sa. 1310 01:05:29,350 --> 01:05:33,790 Men, si ou nèg gen nenpòt kesyon, nan kou, voye yon imèl ba m ', kite m' konnen. 1311 01:05:33,790 --> 01:05:35,190 Ou nèg yo ale nan wòch li. 1312 01:05:35,190 --> 01:05:37,210 Mwen se super eksite. 1313 01:05:37,210 --> 01:05:39,380 Ou nèg yo pral fè kòm nan Mèkredi, ak Lè sa a, 1314 01:05:39,380 --> 01:05:43,150 ou pral jwenn travay sou final ou a pwojè, epi li nan pral fè pè. 1315 01:05:43,150 --> 01:05:48,784 >> Mwen pral isit la pwochen semèn soti nan 4:00 jiska 4:30 1316 01:05:48,784 --> 01:05:50,700 si ou nèg vle vin ranmase ti tès ou. 1317 01:05:50,700 --> 01:05:54,410 Si ou vle jwenn mwen kèk lòt fwa oswa jis kowòdone yon tan diferan, 1318 01:05:54,410 --> 01:05:56,460 santi yo lib yo kite m 'konnen. 1319 01:05:56,460 --> 01:05:58,670 Sinon, sa a se seksyon dènye nou an. 1320 01:05:58,670 --> 01:06:01,070 Se konsa, li te gen yon gwo wè ou guys. 1321 01:06:01,070 --> 01:06:02,450 Tanpri pran plis sirèt. 1322 01:06:02,450 --> 01:06:05,390 Ak bon chans sou egzamen ou yo. 1323 01:06:05,390 --> 01:06:06,687