1 00:00:00,000 --> 00:00:08,630 2 00:00:08,630 --> 00:00:11,450 DAVID Malan: Hello, dunia, hii ni CS50Live, na kijana, kufanya sisi 3 00:00:11,450 --> 00:00:13,680 na sehemu ya ajabu kwa leo. 4 00:00:13,680 --> 00:00:17,400 Kwanza, kuangalia ndani ya jinsi Dropbox kazi, basi karibu 5 00:00:17,400 --> 00:00:20,230 kuangalia hamsters vidogo kula burritos vidogo, 6 00:00:20,230 --> 00:00:24,870 na mwisho, nyuma ya pazia ya kuangalia katika CS50 wa filamu mpya, Kuendelea. 7 00:00:24,870 --> 00:00:27,410 >> Lakini kwanza, Dropbox.com, ambapo sisi hivi karibuni 8 00:00:27,410 --> 00:00:30,770 alisafiri katika San Francisco, California, kukutana na CS50 wa zamani wa kichwa 9 00:00:30,770 --> 00:00:34,390 mafundisho wenzake, Thomas Carriero Yeye alitupa sisi ziara ya Dropbox 10 00:00:34,390 --> 00:00:37,919 na nini hasa ni kama kazi na daresay, kuishi huko. 11 00:00:37,919 --> 00:00:39,960 Sasa Tuliketi si tu na Thomas wakati kuna, 12 00:00:39,960 --> 00:00:43,400 lakini pia na wa zamani CS50 ya mafundisho kichwa wenzake Alex Allain 13 00:00:43,400 --> 00:00:46,330 kuzungumza juu ya msingi utendaji kazi wa Dropbox.com 14 00:00:46,330 --> 00:00:48,190 na ni kusambazwa usanifu. 15 00:00:48,190 --> 00:00:49,571 Hebu tuangalie. 16 00:00:49,571 --> 00:00:52,570 THOMAS Carriero: Mimi Thomas Carreiro Mimi nina mhandisi wa programu katika Dropbox. 17 00:00:52,570 --> 00:00:54,150 ALEX Allain: Mimi Alex Allain. 18 00:00:54,150 --> 00:00:57,110 Mimi ni mhandisi hapa Dropbox. 19 00:00:57,110 --> 00:01:00,250 >> THOMAS Carriero: Yeah, hivyo nilikuwa kweli kwanza kichwa CF kwa CS50 20 00:01:00,250 --> 00:01:02,600 Daudi Malan alichukua juu ya darasa. 21 00:01:02,600 --> 00:01:05,930 Nilikuwa tayari kufundisha CS50 kwa semesters mbili 22 00:01:05,930 --> 00:01:09,610 na Mike Smith, ambaye alikuwepo profesa kabla ya hapo. 23 00:01:09,610 --> 00:01:12,410 >> ALEX Allain: Kwa hiyo mimi kweli hakuwa na kuchukua CS50, 24 00:01:12,410 --> 00:01:17,960 lakini mimi TF ni mara mbili, mara moja kama TF mara kwa mara na kisha katika mwaka wangu wa mwandamizi, 25 00:01:17,960 --> 00:01:21,431 Mimi kwa kweli Mkuu TF ya CS50, ambayo ilikuwa mengi ya furaha. 26 00:01:21,431 --> 00:01:23,430 THOMAS Carriero: Kwa hiyo wakati David kufikiwa nje kwangu 27 00:01:23,430 --> 00:01:27,740 kuhusu kuanzisha Dropbox katika CS50 appliance, 28 00:01:27,740 --> 00:01:30,890 Mimi kwa kweli nilikuwa msisimko, kwa sababu sisi kweli kuwa Linux mteja. 29 00:01:30,890 --> 00:01:35,180 Wengi wa watumiaji wetu kutumia aidha Windows au wateja Macintosh, 30 00:01:35,180 --> 00:01:38,830 lakini Linux, Macintosh, na Wateja Windows ni wote, kwa kweli, 31 00:01:38,830 --> 00:01:39,880 sawa sana. 32 00:01:39,880 --> 00:01:44,510 Hivyo tulichokifanya ni sisi kabla ya imewekwa Dropbox Linux mteja katika CS50 33 00:01:44,510 --> 00:01:48,920 appliance, na anaendesha tu kama yetu yote ya watumiaji wengine Linux. 34 00:01:48,920 --> 00:01:51,130 >> ALEX Allain: Hivyo njia Dropbox kazi ni 35 00:01:51,130 --> 00:01:57,510 anaendesha kama mteja juu ya mbalimbali mifumo ya uendeshaji na vifaa. 36 00:01:57,510 --> 00:02:00,464 Drobox desktop mteja ni mmoja wa watu wengi maalumu, 37 00:02:00,464 --> 00:02:01,630 moja ya kuvutia zaidi. 38 00:02:01,630 --> 00:02:04,430 >> THOMAS Carriero: Kwa hiyo Dropbox kimsingi inachukua wote wa files 39 00:02:04,430 --> 00:02:06,350 kwamba kuweka katika folder, na chunks 40 00:02:06,350 --> 00:02:08,380 files wale katika chunks nne megabyte. 41 00:02:08,380 --> 00:02:12,170 Hivyo tutaweza kuchukua 100 megabyte PDF file, na tutaweza 42 00:02:12,170 --> 00:02:14,990 chunk ndani 25 nne megabyte chunks. 43 00:02:14,990 --> 00:02:19,760 Wale chunks ni basi encrypted, na kisha sisi kuwatuma kuzuia yetu server. 44 00:02:19,760 --> 00:02:24,870 >> ALEX Allain: watumishi kuzuia ni kuhifadhi kwa ajili ya vitalu wenyewe, 45 00:02:24,870 --> 00:02:28,490 na hivyo kuzuia kila ni kuhifadhiwa katika kuzuia server na data 46 00:02:28,490 --> 00:02:32,490 na SHA-256 hash ya kwamba vitalu. 47 00:02:32,490 --> 00:02:37,190 Hiyo ni encryption ya msingi sana primitive kuwa muhtasari wa, katika baadhi ya akili, 48 00:02:37,190 --> 00:02:42,050 data katika sana kipekee njia hiyo ni ya kipekee kwa data hiyo. 49 00:02:42,050 --> 00:02:44,430 Unaweza kupakia file zima wote kwa mara moja, 50 00:02:44,430 --> 00:02:48,820 lakini zinageuka kama wewe kufanya kwamba pamoja na files kweli kubwa, 51 00:02:48,820 --> 00:02:51,734 wao kuchukua kweli kwa muda mrefu kwa kupakia, na kama una kushindwa, 52 00:02:51,734 --> 00:02:53,650 uko nje ya bahati na una upya yake. 53 00:02:53,650 --> 00:02:56,700 Nini sisi basi ni sisi tunasema server nyingine katika mfumo wetu, nini 54 00:02:56,700 --> 00:03:00,555 sisi kuwaita meta server, metadata server, hey, hii ni file 55 00:03:00,555 --> 00:03:03,110 na ni linajumuisha zifuatazo orodha ya vitalu. 56 00:03:03,110 --> 00:03:05,972 Na sisi kupita juu hashes kutambua vitalu wale 57 00:03:05,972 --> 00:03:07,680 badala ya re kuweka kuzuia nzima. 58 00:03:07,680 --> 00:03:09,805 kisha hundi meta server na kuzuia watumishi, 59 00:03:09,805 --> 00:03:12,950 hufanya uhakika vitalu ni pale - kama the ni, kamili, kila kitu ni nzuri. 60 00:03:12,950 --> 00:03:15,720 >> THOMAS Carriero: Wakati tunataka kwa, kimsingi, kushusha faili 61 00:03:15,720 --> 00:03:19,370 kutoka katika mtandao, hebu sema, tutaweza kuuliza meta server kwanza, 62 00:03:19,370 --> 00:03:22,010 hey, unaweza kuniambia juu ya ambapo faili hii iko, 63 00:03:22,010 --> 00:03:25,430 na meta server watasema, oh, vizuri, file hii ni kweli 25 nne megabyte 64 00:03:25,430 --> 00:03:26,804 chunks, na hapa ni. 65 00:03:26,804 --> 00:03:28,970 Na kisha tutaweza kwenda kuzuia server na tutaweza kweli 66 00:03:28,970 --> 00:03:32,534 kushusha kila chunks hizo, na kisha tutaweza upya file kutoka huko, 67 00:03:32,534 --> 00:03:33,950 na kisha tutaweza kuanza download. 68 00:03:33,950 --> 00:03:36,490 Yeah, hivyo Dropbox mikataba na wadogo, kimsingi, 69 00:03:36,490 --> 00:03:38,592 na sana, sharding fujo sana. 70 00:03:38,592 --> 00:03:40,300 ALEX Allain: Kwa hiyo sharding ni wakati wa kuchukua 71 00:03:40,300 --> 00:03:46,420 zote za watumiaji wa katika yako startup au kampuni yako, 72 00:03:46,420 --> 00:03:48,989 na labda walitumia kuwa juu ya database moja, 73 00:03:48,989 --> 00:03:51,530 na kwamba kazi kubwa mpaka hit idadi fulani ya watumiaji, 74 00:03:51,530 --> 00:03:53,488 na kwa kweli nini unataka kufanya ni kutafuta baadhi ya njia 75 00:03:53,488 --> 00:03:56,300 kugawa wale katika mbili database au labda zaidi ya miaka miwili - 76 00:03:56,300 --> 00:04:00,110 walau, kutosha kwamba unaweza na kila user katika dunia. 77 00:04:00,110 --> 00:04:02,240 Hivyo wakati wewe Shard, nini kufanya ni kupata 78 00:04:02,240 --> 00:04:05,740 baadhi ya njia ya kuamua ambayo database kwenda 79 00:04:05,740 --> 00:04:09,150 kwa hauhitaji kupiga directory ya kati, 80 00:04:09,150 --> 00:04:12,590 au labda ni ya haraka sana, nafuu kuangalia-up katika saraka ya kwamba kati. 81 00:04:12,590 --> 00:04:16,129 >> THOMAS Carriero: Sisi kamwe kuwa kila kitu kuhifadhiwa katika database moja, 82 00:04:16,129 --> 00:04:17,920 kwa sababu hiyo karibu kamwe kwenda wadogo. 83 00:04:17,920 --> 00:04:22,770 Hivyo badala yake, nini cha kufanya ni tutaweza kuchukua kila ya kwamba habari, wote wa files 84 00:04:22,770 --> 00:04:24,590 wote ni wa metadata na tutaweza kigae ni 85 00:04:24,590 --> 00:04:27,740 katika mamia au maelfu database ya mantiki. 86 00:04:27,740 --> 00:04:31,780 Hiyo ina maana kwamba wakati tuna kuomba kwa habari ya mtumiaji, 87 00:04:31,780 --> 00:04:35,560 tutaweza kusema kwanza, hey, ambayo database ni habari mtumiaji huyu kuhifadhiwa katika, 88 00:04:35,560 --> 00:04:39,820 na kisha tutaweza kimsingi kutumia uamuzi wa kwenda kupata kwamba database, 89 00:04:39,820 --> 00:04:42,830 na hapo ndipo tutaweza mzigo wote files au metadata wote 90 00:04:42,830 --> 00:04:44,010 kuhusu files. 91 00:04:44,010 --> 00:04:46,750 Hivyo sisi matumizi mengi ya sharding, lakini sharding si mara zote za kutosha. 92 00:04:46,750 --> 00:04:49,280 Wewe kweli haja ya cache mengi ya maombi ya kawaida, 93 00:04:49,280 --> 00:04:52,940 kwa sababu hata kama database maswali inaweza kuwa ghali. 94 00:04:52,940 --> 00:04:55,620 Kwa hiyo sisi pia kufanya maendeleo mikakati Caching 95 00:04:55,620 --> 00:04:59,210 kuhakikisha kwamba kawaida maombi ni rahisi kabisa kwa compute, 96 00:04:59,210 --> 00:05:03,560 na kimsingi, ambayo inafanya kuwa mengi kasi na inafanya kazi katika wadogo. 97 00:05:03,560 --> 00:05:06,400 Hivyo hiyo ni, katika ngazi ya juu sana, aina ya jinsi Dropbox kazi. 98 00:05:06,400 --> 00:05:08,190 >> ALEX Allain: jina langu Alex Allain. 99 00:05:08,190 --> 00:05:09,731 >> THOMAS Carriero: Mimi Thomas Carreiro. 100 00:05:09,731 --> 00:05:11,330 ALEX Allain: Na hii ni CS50. 101 00:05:11,330 --> 00:05:14,455 >> DAVID Malan: Sasa kama umefanya umewahi kujiuliza ambapo quote hii kwenye tovuti CS50 ya 102 00:05:14,455 --> 00:05:17,150 linatokana, ni kweli Alex ambaye ni mwandishi awali. 103 00:05:17,150 --> 00:05:20,160 Sasa, akizungumza ya Dropbox, mimi hivi karibuni kupokea barua pepe hii kutoka kwao 104 00:05:20,160 --> 00:05:23,199 Inbox yangu - Hi, David, unaweza taarifa kwamba baadhi ya viungo yako pamoja 105 00:05:23,199 --> 00:05:25,240 si kazi, na sisi alitaka kuwafikia nje kwenu 106 00:05:25,240 --> 00:05:27,237 binafsi basi wewe kujua kwa nini. 107 00:05:27,237 --> 00:05:28,320 Vizuri nini kiungo pamoja? 108 00:05:28,320 --> 00:05:31,580 Naam, kama wewe umetumia Dropbox zaidi ya tu kuokoa chanzo code yako ndani ya 109 00:05:31,580 --> 00:05:33,288 ya appliance, wewe wapate kujua kwamba 110 00:05:33,288 --> 00:05:36,100 unaweza kuunda viungo pamoja na kubonyeza kawaida haki juu ya faili 111 00:05:36,100 --> 00:05:37,875 na kuiga url kwa clipboard yako. 112 00:05:37,875 --> 00:05:40,750 Kuwa kiungo pamoja ili kuangalia kidogo kitu kama hiki, lakini badala yake 113 00:05:40,750 --> 00:05:43,208 ya neno siri, kuna kweli kitu cryptic zaidi 114 00:05:43,208 --> 00:05:45,990 huko, kama mlolongo wa barua random na idadi. 115 00:05:45,990 --> 00:05:49,910 wazo kuwa kwamba naweza sasa barua pepe au Gchat aina hii ya url kwa rafiki, 116 00:05:49,910 --> 00:05:55,180 na yeye au yeye anaweza kupata CS50.txt na kushusha ni kwenye kompyuta yake. 117 00:05:55,180 --> 00:05:59,220 Na tu kwa kujua kwamba url, au kwa super, super chini uwezekano, kubahatisha 118 00:05:59,220 --> 00:06:02,720 kwamba url, inaweza mtu mwingine kweli kupata faili. 119 00:06:02,720 --> 00:06:05,180 >> Kwa bahati mbaya kampuni inayojulikana kama Intralinks 120 00:06:05,180 --> 00:06:07,370 hivi karibuni posted juu ya CollaboristaBlog yao 121 00:06:07,370 --> 00:06:10,770 kwamba kuna kweli kadhaa vitisho dhidi ya workflow fulani. 122 00:06:10,770 --> 00:06:13,680 Ni zinageuka kuwa kama ajali kufanya makosa, kama mimi, kusema ukweli, 123 00:06:13,680 --> 00:06:17,140 wamefanya katika siku za nyuma, na kuweka url kama kiungo Dropbox pamoja, 124 00:06:17,140 --> 00:06:20,330 ndani ya si ya browser yako anwani bar, lakini kama picha hapa, 125 00:06:20,330 --> 00:06:22,980 tafuta wako bar, kwamba url, bila shaka, ni kwenda 126 00:06:22,980 --> 00:06:25,380 kuwasilishwa kwa search engine kama Google. 127 00:06:25,380 --> 00:06:28,450 Bila shaka, Google si kwenda lazima kutambua kwamba kiungo pamoja, 128 00:06:28,450 --> 00:06:30,366 na hivyo ni kwenda kupata zaidi search generic 129 00:06:30,366 --> 00:06:32,680 matokeo kama kiungo kwa Dropbox.com yenyewe, 130 00:06:32,680 --> 00:06:36,320 na katika kesi hii, matangazo, na kwa kweli, matangazo, uwezekano, 131 00:06:36,320 --> 00:06:38,055 kwa washindani wa Dropbox. 132 00:06:38,055 --> 00:06:40,180 Kwa kweli, kwamba ni jinsi gani Intralinks niliona hii - wao, 133 00:06:40,180 --> 00:06:44,540 pia walikuwa mbio AdSense kampeni pamoja na ya maneno 134 00:06:44,540 --> 00:06:46,320 kwamba Dropbox wenyewe wanaweza kutumia. 135 00:06:46,320 --> 00:06:48,790 Na hivyo kama sisi kuvuta matokeo ya chini hapa, 136 00:06:48,790 --> 00:06:52,070 utaona kwamba Inralinks ina kiungo huu kwa utumishi wao wenyewe. 137 00:06:52,070 --> 00:06:55,130 Sasa ni moja ya sifa za Google na injini nyingine tafuta ' 138 00:06:55,130 --> 00:06:59,860 matangazo ya kampeni ni kwamba wakati user kama mimi Clicks juu ya kiungo huu, sasa, 139 00:06:59,860 --> 00:07:04,160 Mimi kwenda kufichua url kwamba mimi niliandika katika Google ili 140 00:07:04,160 --> 00:07:05,760 kupata matokeo haya search. 141 00:07:05,760 --> 00:07:07,760 wazo kuwa kuwa makampuni ungependa kujua 142 00:07:07,760 --> 00:07:09,590 jinsi watu ni kutafuta tovuti yao. 143 00:07:09,590 --> 00:07:12,030 Bila shaka, kama nimeona ukurasa huu wa matokeo ya 144 00:07:12,030 --> 00:07:15,180 na pasting vinginevyo siri url katika Google, 145 00:07:15,180 --> 00:07:18,010 Nimekuwa sasa, ufanisi, aliiambia Intralinks na mtandao wao 146 00:07:18,010 --> 00:07:22,500 kumbukumbu nini hasa siri url mimi alikuwa kutembelea, na hivyo kufichua, 147 00:07:22,500 --> 00:07:25,360 uwezekano, yaliyomo CS50.txt. 148 00:07:25,360 --> 00:07:27,110 Sasa, kuna mwingine tishio wote pamoja - 149 00:07:27,110 --> 00:07:29,901 unaweza kujua, pia, kutoka Dropbox viungo pamoja kwamba unaweza kawaida 150 00:07:29,901 --> 00:07:33,300 kufungua yao ndani ya yako mwenyewe browser na hakikisho yao ndani ya 151 00:07:33,300 --> 00:07:34,500 ya sura kama hii. 152 00:07:34,500 --> 00:07:36,900 Lakini kama hakikisho kwamba ina hyperlink, 153 00:07:36,900 --> 00:07:40,960 kama picha hapa kwa Example.com, na wewe au user click 154 00:07:40,960 --> 00:07:44,550 kwamba hyperlink, na hivyo kufungua tabo mpya au dirisha na kwamba ukurasa wa 155 00:07:44,550 --> 00:07:49,350 url, nini umefanya pia tu aliiambia mtandao server, na asili ya jinsi HTTP kazi, 156 00:07:49,350 --> 00:07:53,180 ni HTTP rejea anwani kutoka wapi wewe akaja. 157 00:07:53,180 --> 00:07:55,900 Kwa maneno mengine, taarifa yenu tovuti marudio 158 00:07:55,900 --> 00:07:59,817 kwamba hapo awali katika hii url eti siri. 159 00:07:59,817 --> 00:08:02,525 Sasa, ni nini Intralinks kugundua na kutafuta njia ya kumbukumbu yao wenyewe 160 00:08:02,525 --> 00:08:05,510 ni kuwa kupatikana kabisa kidogo ya habari kwamba alikuwa hakika 161 00:08:05,510 --> 00:08:07,840 maana ya kuwa siri - kwa ajili ya mfano, mikopo ya mtu 162 00:08:07,840 --> 00:08:12,312 maombi, kodi ya mapato ya mtu, na mashada ya nyaraka zaidi, kama vile. 163 00:08:12,312 --> 00:08:14,895 Sasa, ikiwa Ningependa kujifunza zaidi juu ya tishio fulani, 164 00:08:14,895 --> 00:08:17,810 kichwa na Kushuka sanduku ya blog katika url hii hapa, 165 00:08:17,810 --> 00:08:21,400 na ukweli ni kwamba unaweza si kweli kulinda dhidi ya tishio katika ambayo watu 166 00:08:21,400 --> 00:08:25,600 kama mimi ajali kuweka kile lazima kuwa URL siri katika injini ya utafutaji. 167 00:08:25,600 --> 00:08:28,210 Wewe na mimi ni tu kwenda kuwa kidogo zaidi makini. 168 00:08:28,210 --> 00:08:31,110 Lakini wao wamekuwa wakifanya kazi katika kurekebisha Suala ambapo 169 00:08:31,110 --> 00:08:35,530 viungo kwamba ni iliyoingia katika Dropbox preview walikuwa kufichua rejea url. 170 00:08:35,530 --> 00:08:37,980 Lakini kichwa na kwamba url kwa maelezo zaidi. 171 00:08:37,980 --> 00:08:43,220 >> Lakini sasa, kama alivyoahidi, kuangalia kwa karibu katika hamsters vidogo kula burritos vidogo. 172 00:08:43,220 --> 00:08:46,085 >> [Music kucheza] 173 00:08:46,085 --> 00:09:43,627 174 00:09:43,627 --> 00:09:45,960 DAVID Malan: Sasa CS50 timu ya hivi karibuni alikuwa na nafasi 175 00:09:45,960 --> 00:09:48,540 kushiriki katika Filamu mradi 48-saa, 176 00:09:48,540 --> 00:09:50,260 kimataifa ushindani wakati ambao 177 00:09:50,260 --> 00:09:53,720 timu alikuwa, kwa kweli, 48 masaa peke kutengeneza filamu. 178 00:09:53,720 --> 00:09:55,980 samaki ni kwamba wewe tu kujua filamu nini 179 00:09:55,980 --> 00:09:58,710 haja ya kufanya katika sana kuanza ya wale masaa 48. 180 00:09:58,710 --> 00:10:01,540 Hasa juu ya hivi karibuni Ijumaa jioni saa 7:00 jioni, 181 00:10:01,540 --> 00:10:05,439 sisi katika CS50 kujifunza kwamba tunatarajia kuwa kufanya moja, filamu kimya, mbili, 182 00:10:05,439 --> 00:10:07,480 kuwa filamu zinahitajika kipengele tabia aitwaye 183 00:10:07,480 --> 00:10:10,660 Yeremia Jones, mwalimu, tatu, kuwa filamu inahitajika 184 00:10:10,660 --> 00:10:13,240 kipengele diary, hii moja hapa, na nne, 185 00:10:13,240 --> 00:10:16,570 kwamba sisi zinahitajika kwa namna fulani ni pamoja na line ni nini hata ni 186 00:10:16,570 --> 00:10:18,790 ingawa, bila shaka, sisi walikuwa na kufanya filamu kimya. 187 00:10:18,790 --> 00:10:22,880 >> Sasa, wanachama 26 wa timu CS50 ya walishiriki katika filamu hii masaa 48 188 00:10:22,880 --> 00:10:28,150 mradi, kati yao Colton, Dan, Padraig, na Shelley 189 00:10:28,150 --> 00:10:31,780 Westover, ambaye unaweza kukumbuka kutoka filamu kama hii moja hapa. 190 00:10:31,780 --> 00:10:35,080 Sasa, pia kushiriki, bila shaka, mara CS50 ya mwenyewe Ramon GALVAN. 191 00:10:35,080 --> 00:10:36,205 Ramon, kuwakaribisha kwa show. 192 00:10:36,205 --> 00:10:37,788 RAMON GALVAN: Asante kwa kuwa mimi. 193 00:10:37,788 --> 00:10:39,610 DAVID Malan: Na CS50 ya mwenyewe Daven Farnham. 194 00:10:39,610 --> 00:10:41,850 Sasa, Ramon, nini ilikuwa jukumu lako katika filamu? 195 00:10:41,850 --> 00:10:41,878 >> [? 196 00:10:41,878 --> 00:10:43,670 RAMON GALVAN:? Ndege code] mkurugenzi na Dan, kwa kweli. 197 00:10:43,670 --> 00:10:45,044 >> DAVID Malan: Na Daven, wewe mwenyewe? 198 00:10:45,044 --> 00:10:48,260 DAVEN FARNHAM: Nilikuwa nyota, hivyo mimi kimsingi alifanya mradi huo. 199 00:10:48,260 --> 00:10:48,970 Mimi kuokolewa filamu. 200 00:10:48,970 --> 00:10:49,750 >> DAVID Malan: You kuokolewa filamu. 201 00:10:49,750 --> 00:10:50,530 >> DAVEN FARNHAM: Mimi. 202 00:10:50,530 --> 00:10:52,405 >> DAVID Malan: Sasa, kusema hayo, lakini naamini 203 00:10:52,405 --> 00:10:54,460 tuna screen mtihani wako kwa filamu hii. 204 00:10:54,460 --> 00:10:56,980 Kama tunaweza unaendelea video hii hapa. 205 00:10:56,980 --> 00:10:59,550 >> DAVEN FARNHAM: jina langu Daven Farnham, na hii ni CS50. 206 00:10:59,550 --> 00:11:02,930 207 00:11:02,930 --> 00:11:03,895 Nilitaka kusema CSS. 208 00:11:03,895 --> 00:11:06,870 209 00:11:06,870 --> 00:11:07,996 Hii ni CSS. 210 00:11:07,996 --> 00:11:10,540 211 00:11:10,540 --> 00:11:12,906 >> DAVID Malan: Sasa hii ilikuwa ni filamu yako ya kwanza? 212 00:11:12,906 --> 00:11:14,350 >> DAVEN FARNHAM: Uh, hakuna, labda. 213 00:11:14,350 --> 00:11:17,669 >> DAVID Malan: Hapana, vizuri, angalau hii wakati kuzunguka ilikuwa ni filamu kimya. 214 00:11:17,669 --> 00:11:18,460 DAVEN FARNHAM: Ndiyo. 215 00:11:18,460 --> 00:11:21,020 DAVID Malan: Kwa hiyo saa 7:00 jioni, tulikuta nje viungo wale anahitajika, 216 00:11:21,020 --> 00:11:22,811 na kisha sisi mara moja dived katika kama kundi 217 00:11:22,811 --> 00:11:25,200 kufikiri nini movie sisi walikuwa kweli kwenda kufanya. 218 00:11:25,200 --> 00:11:26,910 Je, unataka kutembea kwetu kwa njia ya nini usiku kwamba ilikuwa kama? 219 00:11:26,910 --> 00:11:29,312 >> DAVEN FARNHAM: Kwa hiyo kimsingi sisi got wazo saa 7:00, 220 00:11:29,312 --> 00:11:31,520 sisi kimsingi kuanza kujadiliana, hivyo sisi kila aina ya 221 00:11:31,520 --> 00:11:34,061 wamekusanyika karibu na bao nyeupe ya na kuanza mawazo mawazo, 222 00:11:34,061 --> 00:11:36,720 na kisha kwa 9:00, sisi walijaribu kutupa mbali na waandishi, 223 00:11:36,720 --> 00:11:38,340 na waandishi alichukua kutoka huko. 224 00:11:38,340 --> 00:11:40,756 >> DAVID Malan: Na wakati huo huo, Dan na Shelley na mimi kwa kweli 225 00:11:40,756 --> 00:11:43,122 inaongozwa na Uchumi, bila shaka, favorite yetu karibu kuhifadhi, 226 00:11:43,122 --> 00:11:46,330 kuchukua props wote kwa ajili ya movie sisi aliamua juu, ambayo katika hatua hiyo 227 00:11:46,330 --> 00:11:46,830 mara - 228 00:11:46,830 --> 00:11:49,232 DAVEN FARNHAM: Sisi aliamua juu ya filamu usawa adventure. 229 00:11:49,232 --> 00:11:51,690 DAVID Malan: Whic alikuwa anaenda kabisa kama Indiana Jones. 230 00:11:51,690 --> 00:11:55,340 DAVEN FARNHAM: Ndiyo, hivyo sisi zinahitajika ng'ombe mijeledi na sisi zinahitajika Fedora na mambo ya ajabu. 231 00:11:55,340 --> 00:11:57,360 DAVID Malan: Na sana ornate kipande cha kujitia 232 00:11:57,360 --> 00:11:59,570 kuwa angeweza kisha kupata mwishoni mwa sehemu. 233 00:11:59,570 --> 00:12:03,040 Bila shaka, sisi kupata nyuma katika usiku wa manane au hivyo kutoka Lengo 234 00:12:03,040 --> 00:12:05,662 na kutambua, nope, si kwamba movie sisi ni kufanya - psych. 235 00:12:05,662 --> 00:12:07,370 DAVEN FARNHAM: kabisa mbalimbali filamu. 236 00:12:07,370 --> 00:12:10,082 RAMON GALVAN: Tulikuwa filamu Noir kwa masaa, 237 00:12:10,082 --> 00:12:11,790 wakati huo tulikuwa na kimapenzi comedy mwishoni. 238 00:12:11,790 --> 00:12:14,920 >> DAVID Malan: Hivyo kwa 4:00, tulikuwa na kimapenzi comedy, na karibu 05:00, 239 00:12:14,920 --> 00:12:16,760 wewe na Dan, wengine mkurugenzi, alijitokeza. 240 00:12:16,760 --> 00:12:19,240 >> RAMON GALVAN: Yeah, hivyo tulipata pamoja na sisi aina ya mipango nje 241 00:12:19,240 --> 00:12:21,700 ambapo sisi Wold risasi, nini scenes tunataka risasi ya kwanza, 242 00:12:21,700 --> 00:12:24,750 na kisha kuzunguka 7:00 au 8:00, sisi kweli alikwenda nje na kuanza risasi. 243 00:12:24,750 --> 00:12:25,780 >> DAVID Malan: Naam, kama unaweza fimbo kote, 244 00:12:25,780 --> 00:12:28,840 tunatarajia upendo kwa kufanya baadhi ya nyuma ya pazia- inaangalia jinsi filamu iliwekwa, 245 00:12:28,840 --> 00:12:32,160 lakini nadhani kwanza, je, sisi kutoa folks dunia PREMIERE 246 00:12:32,160 --> 00:12:35,578 wa filamu CS50 ya, Kuendelea. 247 00:12:35,578 --> 00:12:38,572 >> [Music kucheza] 248 00:12:38,572 --> 00:17:24,369 249 00:17:24,369 --> 00:17:29,310 >> DAVID Malan: Guys, I mean - hivyo hebu kuanza kutoka juu. 250 00:17:29,310 --> 00:17:31,450 Hivyo onyesho la kwanza sana sisi wote risasi kama kundi 251 00:17:31,450 --> 00:17:34,250 asubuhi yalifanyika karibu 08:00 a.m, na sisi kweli hapa, 252 00:17:34,250 --> 00:17:38,220 Jefferson Hall, ambayo ni kweli moja ya kumbi fizikia hotuba juu ya chuo. 253 00:17:38,220 --> 00:17:42,319 Na ilikuwa lengo na eneo hili? 254 00:17:42,319 --> 00:17:44,610 RAMON GALVAN: Kwa hiyo tulikuwa hapa kuanza movie, Daven 255 00:17:44,610 --> 00:17:47,870 kama mwalimu, wenzake kufundisha, au mafundisho msaidizi, kitu 256 00:17:47,870 --> 00:17:51,810 kama hiyo, na alikuwa kweli upset kwamba yeye anaona wanandoa hii kutembea nje 257 00:17:51,810 --> 00:17:52,650 na yeye anataka kuwa. 258 00:17:52,650 --> 00:17:55,067 Yeye anataka kuwa katika uhusiano, yeye tu hana hiyo. 259 00:17:55,067 --> 00:17:57,691 DAVID Malan: Na basi ijayo eneo la tukio, sisi mpito kwa kweli 260 00:17:57,691 --> 00:17:58,570 hakuwa risasi katika utaratibu. 261 00:17:58,570 --> 00:17:59,820 Kwa kweli, hapa, wewe ni - 262 00:17:59,820 --> 00:18:00,890 >> DAVEN FARNHAM: Hivyo hapa, kwa kweli, sisi risasi 263 00:18:00,890 --> 00:18:03,069 hii hii - hii ilikuwa ni moja wa matukio ya mwisho sisi risasi, 264 00:18:03,069 --> 00:18:05,610 lakini hii kwa kweli inaonyesha hadi saa mwanzo wa filamu. 265 00:18:05,610 --> 00:18:07,920 Na hivyo katika eneo hili, ni montage, na hivyo nini mimi kufanya 266 00:18:07,920 --> 00:18:09,760 ni mimi nina kuweka juu ya Cologne, Mimi nina combing nywele zangu. 267 00:18:09,760 --> 00:18:11,093 >> DAVID Malan: Je, kutumia Cologne? 268 00:18:11,093 --> 00:18:13,330 DAVEN FARNHAM: Uh, Ramon ya Cologne, kura ya Cologne. 269 00:18:13,330 --> 00:18:14,310 >> DAVID Malan: Na ni nani shati? 270 00:18:14,310 --> 00:18:15,450 >> DAVEN FARNHAM: Uh, shati Ramon ya. 271 00:18:15,450 --> 00:18:18,120 >> DAVID Malan: Basi hiyo ni zaidi ya moja kuchukua, na shati na mwisho 272 00:18:18,120 --> 00:18:18,760 mara pretty - 273 00:18:18,760 --> 00:18:21,093 >> DAVEN FARNHAM: Ndiyo, nadhani tulikuwa na kuchukua tatu au nne 274 00:18:21,093 --> 00:18:23,630 inachukua, hivyo kila kuchukua mara squirts tatu, hivyo kuna 275 00:18:23,630 --> 00:18:25,470 walikuwa 12 squirts ya Cologne. 276 00:18:25,470 --> 00:18:27,820 Basi, mimi inanukia kama kwamba Cologne ajili ya mapumziko ya siku. 277 00:18:27,820 --> 00:18:28,800 >> DAVID Malan: Naam, katika angalau, kwa haraka sana. 278 00:18:28,800 --> 00:18:31,450 Sisi zilianza nje, na katika kweli, kama wewe kuangalia kwa makini, 279 00:18:31,450 --> 00:18:33,920 hii ni kweli CS50 ya mwenyewe Lauren Caraballo. 280 00:18:33,920 --> 00:18:36,000 Lakini ni nini ulikuwa kufikiri kwa eneo hili? 281 00:18:36,000 --> 00:18:39,083 >> DAVEN FARNHAM: Haki, hivyo katika eneo hili, sisi ni kujaribu kupata mawazo yake. 282 00:18:39,083 --> 00:18:41,240 Hivyo mimi nina kutembea kwa wake, Mimi nina peacocking, bila shaka. 283 00:18:41,240 --> 00:18:41,860 >> DAVID Malan: Peacocking? 284 00:18:41,860 --> 00:18:43,340 >> DAVEN FARNHAM: Oh, hamjui? 285 00:18:43,340 --> 00:18:44,160 >> RAMON GALVAN: Uh, mimi? 286 00:18:44,160 --> 00:18:45,909 >> DAVEN FARNHAM: Yeah, bila shaka, bila shaka. 287 00:18:45,909 --> 00:18:49,555 Hivyo kawaida kutembea, bila shaka, ni kawaida tu kutembea. 288 00:18:49,555 --> 00:18:51,180 DAVID Malan: Hivyo hii ni ya kawaida kutembea? 289 00:18:51,180 --> 00:18:52,721 DAVEN FARNHAM: Hiyo ni kawaida ya kutembea. 290 00:18:52,721 --> 00:18:54,992 Peacocking, kutupa nyonga kidogo huko. 291 00:18:54,992 --> 00:18:56,700 RAMON GALVAN: Ni kweli wote hapa hapa. 292 00:18:56,700 --> 00:18:58,158 DAVEN FARNHAM: Ni sawa hapa. 293 00:18:58,158 --> 00:19:00,270 Ni kutoka qua hii - Ni yote katika nyonga. 294 00:19:00,270 --> 00:19:06,160 Na kisha mwishoni sana, una pop na kufuli. 295 00:19:06,160 --> 00:19:08,017 Ni muhimu kwa ujanja - ni muhimu. 296 00:19:08,017 --> 00:19:09,100 DAVID Malan: Pop na atakavyo. 297 00:19:09,100 --> 00:19:12,202 Haki zote, vizuri, kwa kweli mengi ya comedy kimwili katika filamu. 298 00:19:12,202 --> 00:19:15,410 Kwa kweli, ni moja ya matukio ya pili ilikuwa hapa katika Lamont Library, nje ya mlango. 299 00:19:15,410 --> 00:19:16,800 >> DAVEN FARNHAM: Ndiyo, wao ni haki hapa, hivyo mimi nina kweli 300 00:19:16,800 --> 00:19:19,150 kujaribu - nadhani ni kuvuta mlango na mimi nina kusukuma, 301 00:19:19,150 --> 00:19:21,358 na kama kwamba eneo ikiendelea, Mimi nina kusukuma na kusukuma 302 00:19:21,358 --> 00:19:22,350 milele uadui zaidi. 303 00:19:22,350 --> 00:19:25,500 Na nadhani mwishoni, mtu kweli hodi mimi nje ya njia. 304 00:19:25,500 --> 00:19:27,840 >> DAVID Malan: Yeah, na katika kweli, sisi hakuwa na taarifa - 305 00:19:27,840 --> 00:19:28,850 mpaka editing awamu. 306 00:19:28,850 --> 00:19:31,324 >> RAMON GALVAN: Yeah, hivyo, kama sisi kuvuta ndani ya risasi hii, na Dan, 307 00:19:31,324 --> 00:19:32,490 tunaweza kuongeza kidogo? 308 00:19:32,490 --> 00:19:33,960 OK, kamilifu. 309 00:19:33,960 --> 00:19:38,747 Hivyo got kuona mimi crouched chini kuhusu pop up na kubisha Daven katika uso 310 00:19:38,747 --> 00:19:39,330 na mlango. 311 00:19:39,330 --> 00:19:41,940 DAVID Malan: Kwamba sisi furaha kupatikana Footage masaa tu kabla ya sisi 312 00:19:41,940 --> 00:19:43,730 alikuwa na meli filamu kwa ajili ya tarehe ya mwisho. 313 00:19:43,730 --> 00:19:47,017 Haki zote, pamoja na kuwashukuru wote sana kwa ajili ya kujiunga na kwa nyota katika vile - 314 00:19:47,017 --> 00:19:48,350 DAVEN FARNHAM: Oh, hakuna asante. 315 00:19:48,350 --> 00:19:48,700 RAMON GALVAN: Asante. 316 00:19:48,700 --> 00:19:49,908 DAVID Malan: - filamu ya kusonga mbele. 317 00:19:49,908 --> 00:19:51,490 Pamoja na kwamba ni kwa ajili ya CS50Live. 318 00:19:51,490 --> 00:19:54,360 Asante sana kwa marafiki zetu katika Dropbox, shukrani sana kwa kila mtu 319 00:19:54,360 --> 00:19:57,870 nyuma ya kamera, CS50 ya mwenyewe Ramon GALVAN na Daven Farnham. 320 00:19:57,870 --> 00:20:01,660 Hii ilikuwa CS50 na hii alipendwa eneo wetu 321 00:20:01,660 --> 00:20:03,279 kwamba hakuwa na ni kufanya hivyo katika filamu. 322 00:20:03,279 --> 00:20:05,320 Mkurugenzi 1: Je, sisi gonna kupata gari katika barabara? 323 00:20:05,320 --> 00:20:06,778 Mkurugenzi 2: Ni kuja, hiyo ni sawa. 324 00:20:06,778 --> 00:20:10,437 325 00:20:10,437 --> 00:20:11,020 [HORN honking] 326 00:20:11,020 --> 00:20:13,866 Mwigizaji: Ho. 327 00:20:13,866 --> 00:20:16,094 Oh, mungu. 328 00:20:16,094 --> 00:20:44,416