PHP-FIGのHTTP処理標準の設計はなぜPSR-7/15/17になったのか

PHPカンファレンス2018 発表資料です

Transcript

1. 1)1'*(ͷ)551
   ॲཧඪ४ͷઃܭ͸
   ͳͥ143
   ʹͳͬͨͷ͔
   

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2. ͨͳ͔ͻͯ͞Δ
   @tanakahisateru
   ॴ௕
   

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3. IUUQTTQFBLFSEFDLDPNUBOBLBIJTBUFSVXFIBWFQTS
   ڈ೥ͷ࠙਌ձͰ͜Μͳ͜ͱ΍ͬͯ
   ͔ͬ͢Γ143೔ຊΤόϯδΣϦετͰ͢
   ·͡Ͱ࠷ۙதͷਓʹόϨͨ
   
   

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4. ͝஫ҙ
   w ;FOE&YQSFTTJWFͷ࢖͍ํ͸΍Γ·ͤΜ
   w 143ͷ)551ϝοηʔδϯάͷઃܭΛ௨ͯ͡
   w ઃܭͷΤοηϯεΛֶͼऔΔ͜ͱΛ໨తͱ͠·͢
   

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5. ΠϯλʔϑΣʔεͷఆٛͳΜܾͯΊͷ໰୊Ͱ͠ΐ
   

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6. ΠϯλʔϑΣʔεͷఆٛͳΜܾͯΊͷ໰୊Ͱ͠ΐ
   Μͳͨ͜ͶʔΑ
   

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7. ໿ϲ݄
   ͨͱ͑͹143ͷऩଋʹ͔͔ͬͨ࣌ؒ
   ʙ
   
   
   

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8. w ϛϡʔλϒϧWTΠϛϡʔλϒϧ
   w ׳शΛ͍ٙຊ࣭Λݟग़͢
   w ։์ด࠯ݪଇ͔Β҆ఆ౓ந৅౓౳Ձݪଇ·Ͱ
   w ந৅ͷσβΠϯ ઃܭ
   ͕ͦ͜ຊ࣭
   ͜ͷ௕͍ظؒͰԿ͕ܾ·͔͔ͬͨΒʜ
   ʜͬͯ࿩͠Α͏ͱͯͨ͠ΜͰ͚͢Ͳ
   

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9. Ϊϟʔ
   

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10. View Slide

11. ໾ཱͨͣͷڠௐੑͳ͍ϑϨʔϜϫʔΫج൫ͩͱ͔ʜ
    

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12. ߦಈنൣŗŕʜ
    ͸͊ ͓·͕͍͎͑ʜ
    

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13. ʮ͚ͯ͠;FOEͷΤΰͰ͸ͳ͍ʯ
    ࢲ͕Ҏલ͔Βओு͔ͨͬͨ͠ͷ͸ɺ143͔Β࢝·ͬͨઃܭ͕
    ͱ͍͏͜ͱͰ͢
    ΋ͱ͍
    

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14. /ZIPMN
    :JJBMQIB
    (V[[MF
    4MJN
    ;FOE
    ͪΐͬͱ஫໨ͷ࠷଎࣮૷
    4MJN΋࣍͸͜Ε࢖͏͔ͱ͔ݴͬͯΔ
    ࣍ੈ୅:JJͷ)551·ΘΓ΋
    143Λ࣮૷͢ΔΑ͏ʹͳΔ
    ΄Β͜ͷτοϓ
    

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15. ࢓্͕ΓΛΑ͘ݟΖ
    )551ϝοηʔδϯάͦ͜
    ૬ޓӡ༻ੑͷ৅௃తͳଘࡏ͡Όͳ͍͔
    ʜͱɺͳ͍ͥ͑Δͷ͔
    

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16. 8):
    ͳͥඞཁͳͷ͔
    

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17. ͜ΕΛݟͯΈͳ͞ΜͲ͏ࢥΘΕ·͔͢
    ஫-BSBWFM4XPPMF͋ΔΑͱ͍͏ͷͱ͸ҙຯ͕ҧ͍·͢
    

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18. &NJUUFS*OUFSGBDF
    4BQJ&NJUUFS
    4XPPMF&NJUUFS
    3FRVFTU)BOEMFS*OUFSGBDF
    ϑϨʔϜϫʔΫ
    "QBDIF'1.
    4XPPMF
    ૄ݁߹ͳΞʔΩςΫνϟ
    ͜͜Ͱ&NJUUFS͕ࠩ͠ସΘͬͯ΋
    ϑϨʔϜϫʔΫ͸มΘΒͳ͍
    ։์ด࠯ݪଇ
    

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19. &NJUUFS*OUFSGBDF
    4BQJ&NJUUFS
    4XPPMF&NJUUFS
    3FRVFTU)BOEMFS*OUFSGBDF
    ϑϨʔϜϫʔΫ
    "QBDIF'1.
    4XPPMF
    ֤ϑϨʔϜϫʔΫ͕
    $BLF1)1YΛ࠶ൃ໌
    ͢Δͷ͸΋͏ͨ͘͞Μͩ
    ผͷઐ༻ϑϨʔϜϫʔΫ
    

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20. ݴ͍͔ͨ͊ͳ͍͚Ͳ͜ΕΑ
    &TQSFTTP3FBDU1)14JMFY TZNGPOZIUUQGPVOEBUJPO
    
    ͳΜͰ͜ΜͳʹՄೳੑ͋ͬͨϓϩδΣΫτ͕ࢭ·ͬͯ͠·ͬͨΜͰ͠ΐ͏͔ͱ
    
    
    
    

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21. ϑϨʔϜϫʔΫͱ͸
    ΤϛολͷϥούϥΠϒϥϦͰ͸ͳ͍
    ໰୊ʹରͯ͠࠷దͳ
    ղܾͷ࿮૊Έந৅
    ϋʔυίʔυ͞Εͨ
    

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22. ໰୊Ҋ݅ݻ༗ͳۀ຿্ͷ՝୊
    ղܾͲͷ૚Ͱෳࡶ͞Λ෧͡Δ͔
    ໰୊ͱղ๏ʹଟ༷ੑ͕͋Δ͔Βͦ͜
    1)1ͱ1)1'*(ͷҙຯ͕͋Δ
    ϑϨʔϜϫʔΫબ୒ࢶ͕ଟ͍1)1ͷଘࡏҙٛͪΌ͍·͔͢͜Ε
    

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23. @(&5<>FDIP
    ϑϨʔϜϫʔΫ
    %#
    %*
    7JFX
    .7$
    શһ͕ಉ͡Χλνͨ͠΋ͷͰڝ૪ͯ͠΋ҙຯͳ͍
    %#
    %*
    7JFX
    .7$
    %#
    %*
    7JFX
    .7$
    %#
    %*
    7JFX
    .7$
    ŹůžŢŕŞ
    ŹůžŢŕŞ
    

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24. 3FRVFTU)BOEMFS*OUFSGBDF
    ϑϨʔϜϫʔΫ
    3%#
    $BDIF
    -PH
    %PNBJO.PEFM
    )5.-
    "TZOD
    6*69
    %FTJHO1BUUFSO
    .77.
    $234 "%0
    $MFBO
    "SDIJUFDUVSF
    5FTU $POpHVSBUJPO
    ࠓޙͷϑϨʔϜϫʔΫʹ
    ҙࣝͯ͠΄͍͠ྖҬ
    ͔͜͜ΒԼδΣωϦοΫͳ໰୊ͳΒ
    αʔυύʔςΟͰͥΜͥΜ͍͍Α
    %*$POUBJOFS
    3PVUJOH
    )551.FTTBHJOH
    %%%%$*
    

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25. &NJUUFS*OUFSGBDF
    4BQJ&NJUUFS
    4XPPMF&NJUUFS
    3FRVFTU)BOEMFS*OUFSGBDF
    ϑϨʔϜϫʔΫ
    "QBDIF'1.
    4XPPMF
    ૄ݁߹ͳΞʔΩςΫνϟ
    ϑϨʔϜϫʔΫ࡞Δͱ͖
    ͔͜͜ΒԼ͍ͬͨΜ๨Εͯ
    ந৅౓্͍͛ͯ͜͏Α
    ͜͜͸ΈΜͳ͕
    ࠶ར༻Ͱ͖ΔΑ͏ʹ
    ෼͚ͯߟ͑Α͏ͥ
    

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26. )08
    ඞཁੑ͸ͲͷΑ͏ʹຬͨ͞ΕΔ͔
    

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27. 143 ϝοηʔδͷσʔλϞσϧ
    143
    143
    ϝοηʔδͷϋϯυϦϯά
    ϝοηʔδͷੜ੒
    3FRVFTU*OUFSGBDF3FTQPOTF*OUFSGBDF
    6SJ 4USFBN 6QMPBEFE'JMF
    3FRVFTU)BOEMFS*OUFSGBDF
    .JEEMFXBSF*OUFSGBDF
    3FTQPOTF'BDUPSZ*OUFSGBDF
    4USFBN'BDUPSZ*OUFSGBDF
    
    

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28. XJUI)FBEFS OBNF WBMVF
    
    HFU#PEZ
    4USFBN*OUFSGBDF
    .FTTBHF*OUFSGBDF
    3FRVFTU*OUFSGBDF 3FTQPOTF*OUFSGBDF
    143
    4USFBN*OUFSGBDF
    SFBE MFOHUI
    TUSJOH
    
    FYUFOET
    

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29. XJUI)FBEFS
    ΠϛϡʔλϏϦςΟ
    ࣗ਎Λมߋͤͣɺࣗ਎ͷϔομͱ௥ՃϔομΛ
    ࣋ͬͨ৽͍͠ΠϯελϯεΛฦ͢
    4USFBN*OUFSGBDF ஗ԆಡΈग़͠ந৅
    ϝϞϦʹશ಺༰ΛཷΊࠐ·ͳͯ͘΋͍͍
    1)1ׂ౰ϝϞϦΑΓେ͖͍όΠτྻΛѻ͑Δ
    143ͷϙΠϯτ
    

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30. SFRVFTUTFU1BSBN bGPP` CBS
    
    ΋͠ϛϡʔλϒϧͩͬͨΒʜ
    

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31. @(&5CBS
    ΋͠ϛϡʔλϒϧͩͬͨΒʜ
    ಉҰͷϦΫΤετΠϯελϯεΛ࢖͍ճ͢͜ͱ͸
    1)1ͷ࣮ߦ࣌ʹ͸εʔύʔάϩʔόϧͱಉ͡ҙຯ
    ͜Μͳ΋ͷͰαʔυύʔςΟؒͷ૬ޓӡ༻ੑΛҡ࣋Ͱ͖Δ͔ෆ҆
    

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32. ετϦʔϛϯάʹ͍ͭͯ͸ͪ͜ΒΛ͝ཡ͍ͩ͘͞
    IUUQQTSOFUTBTF[BLJQIQDPOGVL
    IUUQTXXXTMJEFTIBSFOFUTBTF[BLJQIQIUUQ
    ཁ͸ɺඞͣετϦʔϛϯάΛ૝ఆ͠Ζͱ͢Δ͜ͱͰɺ
    ڊେ*0Ͱ΋ྫ֎ͳ͘ѻ͑ΔΑ͏഑ྀ͞Ε͍ͯ·͢
    (V[[MFźŕŦŖ
    

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33. IBOEMF
    4FSWFS3FRVFTU*OUFSGBDFSFRVFTU
    
    3FTQPOTF*OUFSGBDF
    3FRVFTU)BOEMFS*OUFSGBDF
    143
    QSPDFTT
    4FSWFS3FRVFTU*OUFSGBDFSFRVFTU
    3FRVFTU)BOEMFS*OUFSGBDFIBOEMFS
    
    3FTQPOTF*OUFSGBDF
    .JEEMFXBSF*OUFSGBDF
    ϛυϧ΢ΣΞͷ࢓༷ͱࢥΘΕ
    ͕͚ͪͩͲɺΉ͠Ζ͍ͭ͜ͷ
    ൃݟͷํ͕ॏཁ
    

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34. app.get('/', function (req, res) {
    res.send('Hello World!');
    });
    app.use(function (req, res, next) {
    console.log('LOGGED');
    next();
    });
    ·ͣ͸ͪ͜ΒΛ͝ཡ͍ͩ͘͞
    143ͷॳظҊ͸͜͏͍͏/PEFKTͷΑ͏ͳܗΛ͍ͯ͠·ͨ͠ɻ
    4MJNͷ࣮૷ΛҰൠԽͨ͠ײ͡Ͱ͢ɻ
    ೥ϦϦʔε͞Εͨܗͱ͸͍ͩͿҧ͍·͢ɻ
    

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35. w ͳͥϦΫΤετϋϯυϥ͕ʮϦΫΤετΛड͚ͯϨεϙϯε
    Λฦ͢ʯͱ͍͏ૉ௚ͳܗΛ͍ͯ͠ͳ͍ͷ͔
    w ڞ༗Πϯελϯεͷঢ়ଶ͕มԽͨ͠Γɺଈ࠲ʹετϦʔϜʹ
    ϓογϡͨ͠Γ͢Δͷ͸ɺ143લఏͰ͜Ε͸ʜ
    app.get('/', function (req, res) {
    res.send('Hello World!');
    });
    

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36. w OFYU
    ͕Կऀ͔ΛܕͰද͍ͤͯͳ͍ɻʮ@@JOWPLFΛ࣋ͭ
    ΦϒδΣΫτʯͳͲͱ͍͏ܕ͸ͳ͍
    w DBMMBCMFͳ͚ͩͰ͸Ҿ਺ͷ਺΍ܕͷ੍໿͕༩͑ΒΕͳ͍
    app.use(function (req, res, next) {
    console.log('LOGGED');
    next();
    });
    

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37. w ͔ͨ͠ʹɺଟ͘ͷϑϨʔϜϫʔΫ͕&YQSFTTͷϛυϧ΢ΣΞ
    ʹӨڹΛड͚ͨաڈ͸͋Δɻ1)1Ͱ΋ͦͷํ͕ଟ਺೿ͩͬͨ
    w Ͱ΋ɺ/PEFKTͷಈ࡞ಛੑʹରͯ͠ઃܭ͞Εͨ΋ͷΛɺΦϒ
    δΣΫτࢦ޲ݴޠ1)1͕ࢀߟʹ͢Δͷ͸͓͔͍͠
    w ʮΠϯϥΠϯؔ਺ͻͱͭͰ؆୯ʹͰ͖Δʯͷʮ؆୯ʯ͸ɺ
    νϡʔτϦΞϧͰ͸༗ޮͰ΋ɺݱ৔Ͱ᠘ʹԽ͚Δ೏͍͕ϓϯ
    ϓϯ͢Δࢥ૝
    w ߟ͑௚ͤIUUQTCMPHJSDNBYFMMDPNBMM
    BCPVUNJEEMFXBSFIUNM
    

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38. QSPDFTT
    4FSWFS3FRVFTU*OUFSGBDFSFRVFTU
    3FRVFTU)BOEMFS*OUFSGBDFIBOEMFS
    
    3FTQPOTF*OUFSGBDF
    .JEEMFXBSF*OUFSGBDF
    ͦͯ͜͠͏ͳͬͨ
    

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39. app.use(function (req, res, next) {
    console.log('LOGGED');
    next();
    });
    $middleware = new class($logger)
    implements MiddlewareInterface
    {
    // ུ
    public function process(
    ServerRequestInterface $request,
    RequestHandlerInterface $handler
    ): ResponseInterface
    {
    $this->logger->log(LogLevel::INFO, 'LOGGED');
    return $handler->handle($request);
    }
    };
    ೖྗϦΫΤετ
    ࣍ͷεςοϓ΁ͷϙΠϯλʔ
    ग़ྗϨεϙϯε
    

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40. w IBOEMFS͸ඞͣIBOEMF
    ϝιουΛ࣋ͭอূ͕͋Δ
    w IBOEMF
    ϝιουͷҾ਺ʹ͸ܕ੍໿͕͋Δ
    w IBOEMF
    ϝιου͕ϨεϙϯεΛฦ͢อূ͕͋Δ
    return $handler->handle($request);
    IBOEMF
    4FSWFS3FRVFTU*OUFSGBDFSFRVFTU
    
    3FTQPOTF*OUFSGBDF
    3FRVFTU)BOEMFS*OUFSGBDF
    ܕͷ͔ͪΒ
    

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41. IBOEMF
    4FSWFS3FRVFTU*OUFSGBDFSFRVFTU
    
    3FTQPOTF*OUFSGBDF
    3FRVFTU)BOEMFS*OUFSGBDF
    ͭ·Γ8FCΞϓϦέʔγϣϯ
    ൚Խ
    ʜ͋ɺͦ͏Ͷɺ͢΂ͯͷΞϓϦέʔγϣϯ͸ཁ͢Δʹ
    ϦΫΤετΛड͚ͯϨεϙϯεΛฦ͚ͩͩ͢ΑͶ
    ϦΫΤετΛड͚ͯ
    ϨεϙϯεΛฦ͢ʜ
    

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42. "QQ
    IBOEMF
    
    1SPYZ
    QSPDFTT
    
    ϦΫΤετ
    Ϩεϙϯε
    1SPYZ"QQؒͰɺಉҰͷϝοηʔδΠϯελϯεΛڞ༗͠ͳ͍͜ͱ͕ॏཁ
    ح͘͠΋143͸
    ෺ཧαʔόʔߏ੒ͱಉ͡ߏਤʹ
    ετϦʔϛϯά
    ετϦʔϛϯά
    3FRVFTU)BOEMFS*OUFSGBDF
    .JEEMFXBSF*OUFSGBDF
    $PQZXJUITUSFBNJOH
    $PQZXJUITUSFBNJOH
    

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43. ݱঢ়ͷྲྀߦΓʹଥڠͤͣͪΌΜͱઃܭ͠Α͏ͱͨ͠Β
    ͳΜ͔ݱ࣮ͷࣸ૾ʹ͍ۙϞσϧ͕ग़͖ͯͨͧ
    ͪΐͬͱײಈͳΜͰ͚͢Ͳ
    ߟ͑௚ͯ͠ຊ౰ʹྑ͔ͬͨ
    

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44. ͋ͱͪΐͬͱ଍Γͳ͍͜ͱ
    

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45. DSFBUF3FTQPOTF
    DPEF ʜ
    
    3FTQPOTF*OUFSGBDF
    3FTQPOTF'BDUPSZ*OUFSGBDF
    143
    4USFBN'BDUPSZ*OUFSGBDF
    3FRVFTU'BDUPSZ*OUFSGBDF
    ʜ
    

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46. $handler = new class
    implements RequestHandlerInterface
    {
    public function handle(
    ServerRequestInterface $request
    ): ResponseInterface
    {
    // ͳʹ͔Λॲཧ͢Δ
    return new
    }
    }; ͋Ε ͜͜Ͳ͏͢Μͩ
    

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47. return (new \Zend\Diactoros\Response())
    ->withHeader(
    ‘Content-Type',
    ‘application/json'
    )
    ->withBody(
    new \Zend\Diactoros\Stream($data)
    );
    ʜ͑ ͜ΕͩΊ
    ͩΊͰ͢
    

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48. 143
    "QQ
    SEQBSUZ
    *NQMFNFOUBUJPO
    ͔ͤͬ͘ΠϯλʔϑΣʔεʹґଘͯ͠
    ࣮૷ϥΠϒϥϦΑΓ"QQ͕
    ந৅౓্ʹͳΕΔͷʹ
    ґଘ
    ࣮૷
    ΠϯϑϥετϥΫνϟ૚
    ΞϓϦέʔγϣϯ૚
    ۀքඪ४ͷந৅ ࠷҆ఆ
    
    

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49. 143
    "QQ
    SEQBSUZ
    *NQMFNFOUBUJPO
    ௚ࢀরͨ͠Β҆ఆ౓ந৅౓౳Ձݪଇͷҧ൓
    ඪ४ΠϯλʔϑΣʔε୆ແ͠
    ґଘ
    ࣮૷
    ΠϯϑϥετϥΫνϟ૚
    ΞϓϦέʔγϣϯ૚
    ۀքඪ४ͷந৅ ࠷҆ఆ
    
    ґଘ
    

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50. class MyAppHandler implements RequestHandlerInterface
    {
    private $responseFactory;
    private $streamFactory;
    public function __construct(
    ResponseFactoryInterface $responseFactory,
    StreamFactoryInterface $streamFactory
    )
    {
    $this->responseFactory = $responseFactory;
    $this->streamFactory = $streamFactory;
    }
    public function handle(
    ServerRequestInterface $request
    ): ResponseInterface
    {
    // ུ
    return $this->responseFactory->createResponse()
    ->withHeader('Content-Type', 'application/json')
    ->withBody($this->streamFactory->createStream($data));
    }
    };
    

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51. public function __construct(
    ResponseFactoryInterface $responseFactory,
    StreamFactoryInterface $streamFactory
    )
    ίϯετϥΫλͷ͋ͨΓͰ͸
    ೚ҙʹ%* ґଘੑ஫ೖ
    ظ଴ͯ͠Δ͚ͩͰ͢
    ͨͿΜબ୒ͨ͠143ͷ࣮૷ϥΠϒϥϦΛ஫ೖͯ͘͠ΕΔ
    

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52. return $this->responseFactory->createResponse()
    ->withHeader(
    ‘Content-Type',
    ‘application/json'
    )
    ->withBody(
    $this->streamFactory->createStream($data)
    );
    ۩৅ΛOFXͤͣɺੜ੒͸
    ந৅ϑΝΫτϦʹ೚ͤΔ
    Ͳͷ࣮૷ϥΠϒϥϦΛ࢖͏ͷ͔Λ
    ͍͍ͬ͞ؾʹͤͣࣗ෼ͷίʔυ͕׬੒͢Δ
    

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53. 143
    "QQ
    SEQBSUZ
    *NQMFNFOUBUJPO
    ,&&1
    ґଘ
    ࣮૷
    ΠϯϑϥετϥΫνϟ૚
    ΞϓϦέʔγϣϯ૚
    ۀքඪ४ͷந৅ ࠷҆ఆ
    
    

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54. ·ͱΊ
    

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55. 
    class MyAppHandler implements RequestHandlerInterface
    {
    private $responseFactory;
    private $streamFactory;
    public function __construct(
    ResponseFactoryInterface $responseFactory,
    StreamFactoryInterface $streamFactory
    )
    {
    $this->responseFactory = $responseFactory;
    $this->streamFactory = $streamFactory;
    }
    public function handle(
    ServerRequestInterface $request
    ): ResponseInterface
    {
    // ུ
    return $this->responseFactory->createResponse()
    ->withHeader('Content-Type', 'application/json')
    ->withBody($this->streamFactory->createStream($data));
    }
    };
    

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56. class MyAppHandler implements RequestHandlerInterface
    {
    private $responseFactory;
    private $streamFactory;
    public function __construct(
    ResponseFactoryInterface $responseFactory,
    StreamFactoryInterface $streamFactory
    )
    {
    $this->responseFactory = $responseFactory;
    $this->streamFactory = $streamFactory;
    }
    public function handle(
    ServerRequestInterface $request
    ): ResponseInterface
    {
    // ུ
    return $this->responseFactory->createResponse()
    ->withHeader('Content-Type', 'application/json')
    ->withBody($this->streamFactory->createStream($data));
    }
    };
    
    

    View Slide

57. class MyAppHandler implements RequestHandlerInterface
    {
    private $responseFactory;
    private $streamFactory;
    public function __construct(
    ResponseFactoryInterface $responseFactory,
    StreamFactoryInterface $streamFactory
    )
    {
    $this->responseFactory = $responseFactory;
    $this->streamFactory = $streamFactory;
    }
    public function handle(
    ServerRequestInterface $request
    ): ResponseInterface
    {
    // ུ
    return $this->responseFactory->createResponse()
    ->withHeader('Content-Type', 'application/json')
    ->withBody($this->streamFactory->createStream($data));
    }
    };
    
    

    View Slide

58. Α͏Θ͔ΒΜ͚Ͳ
    ͋Μͨͷ࿩Ϝζ͍Θ
    ʮΈΜͳ޲͚ͷΘ͔Γ΍͍͢΍ͭͳ͍ͷ ʯ
    Ͱɺ͍͍ͷͰ͠ΐ͏͔
    

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59. ࠓ͙͢໾ʹཱͨͳ͍ͱ
    ཧղ͞Εͳͯ͘΋
    ະདྷͷͨΊʹ
    ਖ਼͠͞Λ؏͘͜ͱͦ͜
    ༏Εͨந৅ͷઃܭʹͱͬͯ
    େࣄͳ͜ͱͳͷͰ͸
    

    View Slide

60. ϦϑΝΫλ͕ཁΔ
    ͋ͱͰޮ͍ͯ͘Δ
    ࠓಈ͍ͯΔ͔Β͍͍͡ΌΜ
    ࠓ͙͢໾ʹཱͨͳ͍ͱ
    ཧղ͞Εͳͯ͘΋
    ະདྷͷͨΊʹ
    ਖ਼͠͞Λ؏͘͜ͱͦ͜
    ༏Εͨந৅ͷઃܭʹͱͬͯ
    େࣄͳ͜ͱͳͷͰ͸
    

    View Slide