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kyotolt23_20190222.pdf
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Mitsuharu Emoto
February 22, 2019
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2.3k
kyotolt23_20190222.pdf
Mitsuharu Emoto
February 22, 2019
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Transcript
4XJGUͰ3VOUJNF &YDFQUJPOΩϟον͕͍ͨ͠ ߐຊޫ ,ZPUP-5 !1
ࣗݾհ w ͑ͱΈͭΔ w γʔαʔגࣜձࣾ w J04ΞϓϦͱػցֶशΛ༻͍ͨαʔϏεͷ։ൃ !2
࢝ΊΔલʹ w αϯϓϧίʔυ4XJGUͷॻࣜͰ͢ w γϯϓϧͳͷͰଞݴޠΛͬͯΕ͔ΔఔͰ͢ w ࡶίʔυͳͷͰίʔυࣗମʹҙຯ͋Γ·ͤΜ !3
3VOUJNF&YDFQUJPO w ࣮ߦ࣌ྫ֎ w ίϯύΠϥͰݟ͚ͭΒΕͳ͍ྫ֎ w ΞϓϦ࣮ߦதʹൃੜͨ͠Βɼଈ࣌ʹΫϥογϡ͢Δ w ίʔσΟϯάͰৗʹҙ͖ࣝ͢͜ͱͷͭ !4
ྫ͑ w ྻʹΞΫηε͢Δͱ͖ɼ֬อͨ͠ཁૉҎ্ͷJOEFY ʹΞΫηε͍͚ͯ͠ͳ͍ w ΞΫηε͍ͨ͠JOEFY͕ྻͷཁૉʹؚ·ΕΔ͔Λࣄલʹ ֬ೝ͢Δ͜ͱͰճආͰ͖Δ let temps =
[0, 1, 2] let index = 10 if 0 <= index && index < temps.count{ let temp = temps[index] } let temps = [0, 1, 2] let index = 10 let temp = temps[index] // Ϋϥογϡ !5
ྫ֎ͱίʔσΟϯά w ϥϯλΠϜྫ֎͕ى͜Βͳ͍Α͏ʹࣄલ֬ೝΛߦ͏ඞཁ͕ ͋Δ͕ɼෳࡶͳॲཧ֎తཁҼͳͲͰ͍͠߹͋Δ w Ϣʔβʔ"1*͔Βͷෆఆͳσʔλೖྗ w ͍͔ͭ͘ͷॲཧ͕ॏͳͬͨෳࡶͳγʔϯ w ͍͔ͭ͘ͷϓϩάϥϛϯάݴޠʹىͬͨ͜ྫ֎ΛΩϟο
νͯ͠ɼదͳॲཧͰΫϥογϡͤ͞ͳ͍ػೳ͕͋Δ !6
4XJGUͷྫ֎Ωϟον w ྫ֎ΩϟονUISPXΛ࣮ͨ͠ϝιουʹରͯ͠ɼྫ ֎ΛΩϟονͰ͖Δ w ϥϯλΠϜྫ֎USZDBUDIͰғͬͯΩϟονͰ͖ͳ͍ do{ ɹtry hogehoge() }catch{
... } do{ let temps = [0, 1, 2] try let temp = temps[10] // ϏϧυͰ͖ͳ͍ }catch{ ... } !7
ʘ ?P? ʗ !8
!9
0CKFDUJWF$ͩͱ ΩϟονͰ͖ͯͨΑͶ !10
࡞Γ·ͨ͠ w 0CK$Ͱॲཧ࣮ߦͱىͬͨ͜ ྫ֎Λฦ͢&YD#MPDL w ͦΕΛ4XJGUͰݺͼ·͢ w σϞͰͦͷಈ͖ΛΈ͍ͯͩ͘͞ ExcBlock.execute({ let
temps = [0, 1, 2] print("\(temps[10])") }) { (exception) in print(exception) } !11
μϝͰͨ͠ w 4XJGUͷྫ֎0CK$ͰΩϟονͰ͖ͳ͍ w 0CK$ͰΩϟονग़དྷΔྫ֎/4&YDFQUJPO w 4XJGU͕͛Δྫ֎4XJGU&SSPS !12
͖͋ΒΊͳ͍ w ॲཧ෦0CK$ʹͯ͠͠·͍͍͑ͷͰͳ͍͔ʁ w 5BCMF7JFXͷηϧߋ৽ͷσϞΛ࡞Γ·ͨ͠ // ࣮Πϝʔδ -(void)exc_hogehoge:(Completion)completion{ @try {
[self hogehoge]; } @catch (NSException *exception) { completion(exception); } @finally { } } !13
ΩϟονͰ͖ͨ w ॲཧ෦0CK$ʹͤͨΒɼಈ͍ͨ w ͍ͦΕ͏࣮࣭0CK$ͷίʔυͰʁ !14
͓·͚ w 'PSUJGZ IUUQTHJUIVCDPNKPIOOP'PSUJGZ w ྫ֎ΩϟονͰͳ͘ɼΫϥογϡͨ͠ΞϓϦΛ෮ؼ͞ ͤΔͱ͍͏ຊͷࠇຐज़ w %2Ͱྫ͑ΔͱɼUSZDBUDIʮṫࢮʯʹʮϗΠϛʯͰɼ
'PSUJGZʮ͠ʹʯʹʮβΦϥϧʯ w GBUBM&SSPS͔Β෮ؼͤ͞Δෆࢥٞͳ4XJGUϥΠϒϥϦ'PSUJGZ ΛಡΈղ͘2JJUB IUUQTRJJUBDPNVLJUBLBJUFNT FGFBEGC !15
·ͱΊ w 4XJGUͰϥϯλΠϜྫ֎ΩϟονͰ͖·͢ w 2JJUBʹߘͯ͠·͢IUUQTRJJUBDPN NJUTVIBSV@FJUFNTFEDE w ιʔείʔυͪ͜ΒIUUQTHJUJPGIV/ w 0CK$Λҙࣝͤ͞ͳ͍Α͏ʹϥΠϒϥϦΛ࡞Γ·ͨ͠
w IUUQTHJUIVCDPNNJUTVIBSV.&0&YDFQUJPO !16