ソフトウェアエンジニアとしての姿勢と心構え / Software Engineer's Survival Guide

2022年度リクルート エンジニアコース新人研修の講義資料です

Transcript

1. ιϑτ΢ΣΞ
   ΤϯδχΞͱͯ͠ͷ
   ࢟੎ͱ৺ߏ͑
   ࿨ా୎ਓ !U@XBEB
   
   "QS !ϦΫϧʔτςΫϊϩδʔζ
   

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2. UXBEB
   U@XBEB
   UXBEB
   ࿨ా୎ਓ
   

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3. खֻ͚ͨຊͨͪ
   

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4. wେֶࡏֶத͔ΒઃܭͱϓϩάϥϛϯάͷΞϧόΠτ
   Λ࢝ΊΔ
   wଔۀޙϓϩάϥϚͱͯ͠ͷΩϟϦΞΛ։࢝
   wిࢠ੓෎ͷαϒϓϩδΣΫτ ਺ઍਓن໛
   ͰϦʔυ
   ϓϩάϥϚ
   w91ͷίʔνͱͯ͠ਓͷΞδϟΠϧνʔϜʹࢀՃ
   wߨԋɺࣥචɺ044׆ಈΛ࢝ΊΔ
   wݱࡏ͸ٕज़ސ໰ۀΛߦ͍ͬͯΔ
   ΩϟϦΞతͳ΋ͷ
   

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5. View Slide

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7. ֶͼଓ͚Δ࢟੎
   

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8. l͋ͳͨͷ
   ஌ࣝϙʔτϑΥϦΦ
   ʹରͯ͠ఆظతͳ౤
   ࢿΛߦ͏͜ͱz
   

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9. ٕज़ΛֶͿͷͰ
   ͸ͳ͘ɺٕज़ͷ
   ֶͼํΛֶͿ
   

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10. Agenda
    ֶͼํΛֶͿ
    ݱ໾ϓϩάϥϚͰ͍ΔͨΊʹ
    ͓ΘΓʹ
    👉
    

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11. 感覚記憶
    
    
    0.5 〜 2sec
    短期記憶
    
    
    15 〜 30 sec
    長期記憶
    
    
    死ぬまで?
    ֶͼͷ࢓૊Έ
    

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12. ೴಺ΠϯσοΫεΛ࡞Δ
    ピッカーを育てる = 反復練習
    
    
    何度も長期記憶から出し入れする
    荷物を他の荷物とくっつける
    
    
    連想記憶を育てる
    

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13. ݄ʹ࡭ͷϖʔεͰٕज़ॻΛಡΉ
    खΛಈֶ͔ͯ͠Ϳ
    ຖ೥গͳ͘ͱ΋ݴޠΛֶͭश͢Δ
    ਎ͷճΓΛϓϩάϥϛϯάର৅ʹ͢Δ
    Ξ΢τϓοτΛߦ͏
    👉
    

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14. l݄ʹ࡭ͷ
    ϖʔεͰٕज़ॻ
    ΛಡΉz
    

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15. View Slide

16. 1999 2000 2001 2002 2003 2004 2005 2006
    ͨͱ͑͹ɺ࣌ܥྻʹฒ΂Δ
    

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17. ॻ੶ͷ࣌୅͔ΒςοΫϒϩάͷ࣌୅΁
    

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18. ݄ʹ࡭ͷϖʔεͰٕज़ॻΛಡΉ
    खΛಈֶ͔ͯ͠Ϳ
    ຖ೥গͳ͘ͱ΋ݴޠΛֶͭश͢Δ
    ਎ͷճΓΛϓϩάϥϛϯάର৅ʹ͢Δ
    Ξ΢τϓοτΛߦ͏
    👉
    

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19. lखΛಈ͔͠
    ֶͯͿz
    

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20. Ͱ͖Δ
    ޷͖ʹͳΔ
    ΍Δ
    ໼ҹਖ਼ͷ઀ଓ
    ࠜݩ͕૿͑Ε͹ઌ΋૿͑Δɻ
    ࠜݩ͕ݮΕ͹ઌ΋ݮΔ
    

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21. ࣸܦ
    

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22. https://twitter.com/t_wada/status/9000231741
    

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23. ݄ʹ࡭ͷϖʔεͰٕज़ॻΛಡΉ
    खΛಈֶ͔ͯ͠Ϳ
    ຖ೥গͳ͘ͱ΋ݴޠΛֶͭश͢Δ
    ਎ͷճΓΛϓϩάϥϛϯάର৅ʹ͢Δ
    Ξ΢τϓοτΛߦ͏
    👉
    

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24. lຖ೥গͳ͘ͱ΋
    ݴޠΛͭ
    ֶश͢Δz
    

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25. ୈೋͷݴޠʹ͸ɺੋඇͱ΋ɺ࠷ॳͷݴޠͱ͸ύϥμΠϜ
    ͷҧ͏ݴޠΛબͿ΂͖Ͱ͢ɻͦΕ͸ͳ͔ͥͱ͍͏ͱɺύ
    ϥμΠϜͷҧ͏ݴޠΛֶͿͱɺΞϧΰϦζϜɺΠσΟΦ
    Ϝɺύλʔϯͷ࣮૷ʹ͍ͭͯݏͰ΋ߟ͑ΔΑ͏ʹͳΔ͔
    ΒͰ͢ɻ
    ಉ༷ͷΞϧΰϦζϜΛ࣮૷͢Δʹͯ͠΋ɺ৭ʑͳ΍Γ͔
    ͕ͨ͋ΓಘΔ͜ͱʹؾ͖ͮ·͢ɻ͜ͷମݧ͕ɺϓϩάϥ
    Ϛͷٕज़Λେ͖͘޲্ͤ͞·͢ɻ
    ϓϩάϥϛϯάݴޠ͸ෳ਺शಘ͢΂͖
    

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26. "OEZ)VOUͱ%BWF5IPNBT͸ɺଟ͘ͷਓʹӨڹΛ༩
    ͑ͨஶॻʰୡਓϓϩάϥϚʔʱͷதͰɺʮຖ೥ɺ৽ͨͳ
    ϓϩάϥϛϯάݴޠΛͭ͸ֶͿ͜ͱʯͱקΊ͍ͯ·
    ͢ɻࢲ͸ͦͷΞυόΠεʹै͍ɺաڈԿ೥͔ͷؒʹ࣮ࡍ
    ʹ਺ଟ͘ͷݴޠΛֶΜͰ͖·ͨ͠ɻ
    ͦͯ͠ɺͦͷதͰʮݴޠΛֶͿͱ͍͏ͷ͸ɺͨͩจ๏ɺ
    ߏจΛֶͿ͜ͱͰ͸ͳ͘ɺͦͷഎܠʹ͋ΔจԽ΋ֶͿ
    ͜ͱʯͱ͍͏ॏཁͳڭ܇Λಘ·ͨ͠ɻ
    ݴޠ͚ͩͰͳ͘จԽ΋ֶͿ
    

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27. http://www.thoughtworks.com/radar/languages-and-frameworks
    

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28. http://www.thoughtworks.com/radar/languages-and-frameworks
    

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29. http://www.thoughtworks.com/radar/languages-and-frameworks
    

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30. http://www.thoughtworks.com/radar/languages-and-frameworks
    

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31. http://www.thoughtworks.com/radar/languages-and-frameworks
    

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32. http://www.thoughtworks.com/radar/languages-and-frameworks
    

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33. http://www.thoughtworks.com/radar/languages-and-frameworks
    

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34. lӳޠ͕Ͱ͖ΔΑ͏ʹͳΔͱ͍͏ͷ͸ɺ
    ʮେ͖ͳਤॻؗͷ伴ʯΛ౉͞ΕΔΑ͏ͳ
    ΋ͷͰ͢ɻҰਓͻͱΓͷਓੜʹ͍ΖΜͳ
    ՄೳੑΛ༩͑ͯ͘Ε·͢z
    ŠŠߴদचࢠ
    http://blogos.com/article/85541/
    ٕज़ऀͱӳޠ
    

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35. ݄ʹ࡭ͷϖʔεͰٕज़ॻΛಡΉ
    खΛಈֶ͔ͯ͠Ϳ
    ຖ೥গͳ͘ͱ΋ݴޠΛֶͭश͢Δ
    ਎ͷճΓΛϓϩάϥϛϯάର৅ʹ͢Δ
    Ξ΢τϓοτΛߦ͏
    👉
    

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36. ਎ͷճΓΛ
    ϓϩάϥϛϯά
    ର৅ʹ͢Δ
    

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37. ϓϩάϥϚ޲͚ͷຊͷ؂मऀ͸
    Ͳ͏͋Δ΂͖͔
    

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38. ϓϩάϥϚΒ͘͠
    ଵଦɺၗຫɺ୹ؾ
    ϓϨʔϯςΩετΛ޷Ή
    ͢΂ͯΛόʔδϣϯ؅ཧ͢Δ
    ͢΂ͯΛࣗಈԽ͢Δ
    มԽΛ๊༴͢Δ
    

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39. ϓϩάϥϚΒ͘͠
    ݪߘ͸NBSLEPXOܗࣜ
    ݪจ͸εΫϨΠϐϯάͯ͠औಘ
    HJUΛ࢖͍όʔδϣϯ؅ཧ
    IFSPLVʹQVTIͯ͠αΠτʹ൓ө
    ؂मࠩ෼͸EPDEJGGͰදࣔ
    

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40. View Slide

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42. ࠷ۙͭͬͨ͘΋ͷ
    ࢠҭͯ΍ڭҭؔ܎ͷ
    -*/&#PU
    "NB[PO"MFYB4LJMM
    ͳͲ
    

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43. ݄ʹ࡭ͷϖʔεͰٕज़ॻΛಡΉ
    खΛಈֶ͔ͯ͠Ϳ
    ຖ೥গͳ͘ͱ΋ݴޠΛֶͭश͢Δ
    ਎ͷճΓΛϓϩάϥϛϯάର৅ʹ͢Δ
    Ξ΢τϓοτΛߦ͏
    👉
    

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44. Ξ΢τϓο
    τΛߦ͏
    

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45. https://twitter.com/ProfFeynman/status/981943455508148225
    

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46. Πϯϓοτ
    Ξ΢τϓοτ
    ਖ਼ͷϑΟʔυόοΫϧʔϓ
    ໼ҹਖ਼ͷ઀ଓ
    ࠜݩ͕૿͑Ε͹ઌ΋૿͑Δɻ
    ࠜݩ͕ݮΕ͹ઌ΋ݮΔ
    

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47. ྔ͸࣭ʹసԽ͢Δ
    http://d.hatena.ne.jp/KZR/20080808/p1
    

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48. CMPHΛॻ͘
    

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49. l৘ใൃ৴ɺCMPH ൃ
    ද ެ։ͳͲ͸ɺ਺ֶͷ
    ະղܾ໰୊ͷ
    ূ໌Ͱ
    ͸ͳ͘ɺྉཧͷΑ͏ͳ
    ΋ͷz
    

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50. ࣥච͢Δ ·ͣ͸ࡶࢽ͔Β
    
    

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51. ٕज़ಉਓࢽࢢ৔ͷొ৔
    https://techbookfest.org/event/tbf09
    

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52. ίʔυΛެ։͢Δ
    

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53. ߨԋ͢Δ
    

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54. Ͱ͖Ε͹ϥΠϒίʔσΟϯάͰ
    

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55. ಈը഑৴
    https://www.youtube.com/watch?v=Q-FJ3XmFlT8
    

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56. w5XJUUFS
    wCMPH 2JJUB౳
    wࡶࢽهࣄ 8FC ࢴഔମ ిࢠഔମ
    
    wॻ੶ ڞஶ ຋༁ ؂༁ ୯ஶ
    
    wߨԋ ࣾ಺ษڧձ ࣾ֎-5 ࣾ֎ߨԋ
    
    wϥΠϒίʔσΟϯά
    w(JU)VC
    Ξ΢τϓοτͷνϟωϧ
    

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57. JOUFSWBM
    

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58. Agenda
    ֶͼํΛֶͿ
    ݱ໾ϓϩάϥϚͰ͍ΔͨΊʹ
    ͓ΘΓʹ
    👉
    

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59. ຖ೔ίʔυΛॻ͘
    ೥Լ͔ΒֶͿ
    աڈ͔ΒະདྷΛݟΔ
    ਓͷͭ͘ΔӔΛݟΔ
    େࣄͳ͜ͱʹूத͢Δ
    👉
    

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60. ຖ೔ίʔυΛ
    ॻ͘
    

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61. w K2VFSZ࡞ऀ+PIO3FTJH͸ि຤ʹࣗ෼ͷϓϩ
    μΫτ։ൃΛؤுΖ͏ͱ͕ͨ͠ɺࣦഊɻ
    w ฏ೔ͱಉ͡അྗͰ͸ॻ͚ͳ͍
    w શͯͷि຤͕ۭ͍͍ͯΔΘ͚Ͱ͸ͳ͍
    w Ұिؒ ͋Δ͍͸ೋिؒ
    ͸௕͍ɻίʔυ
    Λ๨Εͯ͠·͏
    w ͦ͜Ͱ+PIO3FTJH͕ߦͬͨ͜ͱ͸ʜʜ
    ͋ͷ+PIO3FTJHͰ΋͏·͍͔͘ͳ͍͜ͱ
    

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62. IUUQFKPIOPSHCMPHXSJUFDPEFFWFSZEBZ
    

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63. ຖ೔ίʔυΛॻ͘͜ͱɻϒϩάɺυΩϡϝϯ
    τɺͦͷଞ͸ίʔυΛॻ͍ͨΒ΍ͬͯΑ͍ɻ
    ҙຯͷ͋ΔίʔυΛॻ͘͜ͱɻΠϯσϯτ
    ΍ϑΥʔϚοτͷमਖ਼ɺՄೳͳΒ͹ϦϑΝΫ
    λϦϯά΋ίʔυॻ͖ʹ͸Χ΢ϯτ͠ͳ͍ɻ
    ਂ໷࣌લʹऴΘΒͤΔ͜ͱɻ
    ॻ͍ͨίʔυΛHJUIVCͰશͯ044ʹ͢Δ
    ͜ͱɻ
    ࢛ͭͷϧʔϧ
    IUUQFKPIOPSHCMPHXSJUFDPEFFWFSZEBZ
    

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64. ౰࣌ͷ
    !KFSFTJHͷHJUIVCQSP
    fi
    MF
    IUUQTHJUIVCDPNKFSFTJH
    

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65. w ඞཁ࠷খݶͷίʔυ΁ͷूதҰ೔෼ʙ࣌ؒఔ౓Ͱҙ
    ຯͷ͋ΔίʔυΛॻ͘͜ͱ͕ڧ͍ΒΕΔ ٳ೔ʹ͸΋ͬͱ
    ͔͚ΒΕΔ
    
    w ϓϩάϥϛϯάͷश׳ԽHJUIVCʹ૲Λੜ΍͢ͷ͕໨తͰ
    ͸ͳ͍ɻࣗ෼Ͱࣗ෼ࣗ਎ͷͨΊʹੜ׆श׳Λม͑Δͷ͕େ
    ࣄ
    w ෆ҆ͱͷઓ͍Ҏલ͸ʮे෼ʹʯਐΜͰ͍Δ͔ɺʮे෼
    ʹʯ׬੒͍ͯ͠Δ͔ɺෆ͕҆͋ͬͨɻຖ೔ίʔυΛॻ͍ͯ
    ΈͯɺਐΜͰ͍Δͱ͍͏࣮ײ͸ɺ࣮ࡍͷਐḿͱಉ͘͡Β͍
    ॏཁͩͱ͍͏ؾ͖ͮΛಘͨ
    +PIO3FTJHʹىͬͨ͜มԽ
    
    

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66. w ि຤ͷա͔ͨ͝͠Ҏલ͸։ൃͷશͯΛि຤ʹṌ͚ࣦͯ
    ഊ͍͕ͯͨ͠ɺ͍·΍ि຤͸ͦΕ΄ͲॏཁͰͳ͘ͳ
    ΓɺϦΞϧϥΠϑΛॆ࣮Ͱ͖ΔΑ͏ʹͳͬͨ
    w όοΫάϥ΢ϯυॲཧࢄาதɺγϟϫʔதɺৗʹίʔ
    υͷ͜ͱΛόοΫάϥ΢ϯυͰߟ͑ΔΑ͏ʹͳΓɺྑ
    ͍ΞΠσΞ͕ු͔ͿΑ͏ʹͳͬͨ
    w ίϯςΫετεΠονҎલ͸िʹҰճͷ։ൃͩͬͨͷ
    ͰίϯςΫετεΠονͷίετ͕͕͋ͬͨɺ͍·͸
    ຖ೔ͳͷͰͦΕ͕ͳ͍
    +PIO3FTJHʹىͬͨ͜มԽ
    
    

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67. w ϫʔΫϥΠϑόϥϯε࢓ࣄੜ׆ࣗ෼ͷϓϩδΣΫτ
    ͷόϥϯεͷऔΓํ͕෼͔ͬͨͷ͕࠷େͷऩ֭ͩͬͨɻ
    ຖ೔΍Δͱ͍͏͜ͱ͸ɺόϥϯεΛऔΔͱ͍͏͜ͱ
    w ·ΘΓ͔Βͷཧղʮຖ೔ίʔυΛॻ͘ʯͱ͍͏श׳Λ
    ެݴͨ͜͠ͱͰɺύʔτφʔ͔Βͷཧղ΋ಘΒΕΔΑ͏
    ʹͳͬͨ
    w ͲΕ͚ͩίʔυΛॻ͍͔ͨ͜ͷश׳Λଓ͚Δͱॻ͘
    ίʔυ΍Ξ΢τϓοτ͸ࣗ෼Ͱ΋֮͑ΒΕͳ͍͘Β͍ͷ
    ྔʹͳΓɺॆ࣮ײΛಘΒΕΔ
    +PIO3FTJHʹىͬͨ͜มԽ
    
    

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68. ʮ͍·ɺখ͞ͳ͜ͱΛଟ͘ੵΈ্
    ͛Δ͜ͱ͕ɺͱΜͰ΋ͳ͍ͱ͜Ζ
    ΁ߦͨͩ͘ͻͱͭͷಓͳΜͩͳͱ
    ͍͏;͏ʹײ͍ͯ͡·͢ʯ
    Πνϩʔ͕೥ʹ.-#೥ؒ࠷ଟ҆ଧΛߋ৽ͨ͠ͱ͖ͷݴ༿
    

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69. ࢲ΋݁ߏଓ͚·ͨ͠
    

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70. ࣄྫ
    

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71. ݱࡏͷ!KFSFTJHͷHJUIVCQSP
    fi
    MF
    IUUQTHJUIVCDPNKFSFTJH
    

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72. ࢝ൃӺۙ͘ʹॅΈɺ࠲ΕΔՄೳੑΛίϯτϩʔϧ͢Δ
    

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73. ຖ೔ίʔυΛॻ͘
    ೥Լ͔ΒֶͿ
    աڈ͔ΒະདྷΛݟΔ
    ਓͷͭ͘ΔӔΛݟΔ
    େࣄͳ͜ͱʹूத͢Δ
    👉
    

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74. ೥Լ͔Β
    ֶͿ
    

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75. lҰੜϓϩάϥϚʔͰ͍
    ΕΔ͔Ͳ͏͔͸ɺݴ͍
    ׵͑Ε͹೥Լ͔Βֶ΂
    Δ͔൱͔ɻz
    

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76. Ͱ͖Δ
    ޷͖ʹͳΔ
    ա৒ద߹ͱλίπϘԽ
    ໼ҹਖ਼ͷ઀ଓ
    ࠜݩ͕૿͑Ε͹ઌ΋૿͑Δɻ
    ࠜݩ͕ݮΕ͹ઌ΋ݮΔ
    

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77. wఆظతʹࣗ෼ͷεΩϧΛ୨Է͢͠Δ
    wੵۃతʹ֎෦ʹग़ͯɺࣗ෼ͷεΩϧΛ
    ૬ରԽ͢Δ
    w࢖͏ಓ۩Λఆظతʹม͑Δ
    wະ஌ͷίϛϡχςΟʹࢀՃ͢Δ
    wएऀ͔ΒֶͿ
    wएऀͱಉ͡౔ඨͰڝ͏
    ϕϯνϚʔΫͱΞϯϥʔχϯά
    

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78. ペアプログラミング
    ベテランにはアンラーニングのチャンス
    

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79. ຖ೔ίʔυΛॻ͘
    ೥Լ͔ΒֶͿ
    աڈ͔ΒະདྷΛݟΔ
    ਓͷͭ͘ΔӔΛݟΔ
    େࣄͳ͜ͱʹूத͢Δ
    👉
    

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80. աڈ͔Β
    ະདྷΛ஌Δ
    

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81. ٕज़͸ʮৼΓࢠʯ
    

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82. ٕज़͸ʮΒͤΜʯ
    

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83. IUUQTTQFBLFSEFDLDPNUXBEBVOEFSTUBOEJOHUIFTQJSBMPGUFDIOPMPHJFT
    

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84. IUUQXXXQVCMJDLFZKQCMPHIUNM
    

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85. IUUQTGVLBCPSJGN
    

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86. ʮ5ࣈܕʯͰ͸ͳ͘ෳ਺ͷபΛ
    

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87. ຖ೔ίʔυΛॻ͘
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103. ٕज़ΛֶͿͷͰ
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