15分でわかるバックグラウンドアップロード

by yimajo

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෼ͰΘ͔Δ όοΫάϥ΢ϯυΞοϓϩʔυ גࣜձࣾΩϡϦΦγςΟιϑτ΢ΣΞ J04%$D !ZJNBKP ࠓ৓ળۣ ձ৔ૣҴాେֶཧ޻ֶ෦੢ૣҴాΩϟϯύε߸ؗձٞࣨ

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ෳ਺͋Δηογϣϯͷத͔ΒબΜͰ௖͖ ͋Γ͕ͱ͏͍͟͝·͢

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wࢿྉ͸ޙ΄Ͳ΢Σϒ্ʹެ։ͯ͠ϋογϡλάΛ෇͚ͯπΠʔτΛ ͠·͢!ZJNBKPJPTEDD wࢿྉͷࡱӨ͸ࣗ༝Ͱ͕͢ɺ࿥ը͞Ε͍ͯΔ͸ͣͳͷͰ:PV5VCFͰݟ ฦͤΔ͸ͣͰ͢ wฏຌͳൃදͳͷͰؾܰʹฉ͍͍ͯͩ͘͞

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ͳͥࠓճόοΫάϥ΢ϯυͰͷ Ξοϓϩʔυʹ͍ͭͯ ࿩͢ͷ͔ ❓

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υΩϡϝϯτ͕গͳ͍

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αϯϓϧίʔυ͸͔ͳΓগͳ͍

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όοΫάϥ΢ϯυ࣌ͷ ಈ࡞͕σόοάͮ͠Β͍

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͜ͷൃදͰ͸ʜ

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όοΫάϥ΢ϯυࣗ ମͷ͓͞Β͍͠·͢

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࢓༷ͷ෼͔ΓͮΒ ͍఺Λղઆ͠·͢

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σόοάʹඞਢͳπʔ ϧΛ঺հ͠·͢

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͸͡ΊͯͰ΋ ࠷୹Ͱ҆શͳํ๏͕Θ͔Δͱࢥ ͍·͢

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͋ΒͨΊ͓ͯ͠ͳ͕͖ w ࣗݾ঺հ w όοΫάϥ΢ϯυΞοϓϩʔυͬͯԿʁ w ϓϩδΣΫτ΁ͷಋೖͱ։ൃ໾ཱͪπʔϧ

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ࣗݾ঺հ

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͋ΒͨΊͯࣗݾ঺հ wגࣜձࣾΩϡϦΦγςΟιϑτ΢ΣΞ wϒʔεεϙϯαʔ w!ZJNBKPʢࠓ৓ળۣʣ wJ04͘Β͍͔ΒΞϓϦ͘Β͍

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༨ஊΛ͠·͢

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͜ͷ෦԰ೖޱͷઆ໌ ಡΜͩਓ͍·͢ʁ ʮ͜ͷ෦԰͸ૣҴాཧ޻ֶ෦ͷ૑ઃऀɺ ஛಺໌ଠ࿠ه೦ձٞࣨͰ͢ʯ ʢ࣮͸෦԰͝ͱʹ໊લ͕͋Γ·͢ʣ

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͜ͷձ৔ೖޱͷ૾ˠ ஛಺ ໌ଠ࿠ʢ͚ͨ͏ͪ Ί͍ͨΖ͏ɺ ҆੓7೥2݄28೔ʮ1860೥3݄20೔ʯ ੜ·Ε — ত࿨3೥ʮ1928೥ʯ3݄23೔ʣ຅͸ɺ ݱࡏͷߴ஌ݝ ॓ໟࢢग़਎ͷ໌࣏ɾେਖ਼ظͷ ࣮ۀՈɾऺٞӃٞһɻ ૣҴాେֶཧ޻ֶ෦ઃཱऀɻ

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ࠓճͷൃදऀˠ @yimajoʢ͍·͡ΐ͏Α͠ͷΓɺ 1981೥ੜ·Εʣ͸ɺ ݱࡏͷߴ஌ݝ࢛ສेࢢग़਎ɻ தֶ࣌୅΄΅डݧษڧΛ͠ͳ͔ͬͨͨΊ ࣗ୐ۙ͘ͷਐֶߍʹਐ·ͣɺ ߴ஌ݝ॓ໟߴߍʹਐֶɺ ϒʔεεϙϯαʔ݉εϐʔΧʔ

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͕͢͞ӡӦɺΘ͔ͬͯ·͢Ͷ

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ӡӦ ʮͨͩͷۮવͰ͢ʯ

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ຊ୊

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ͦ΋ͦ΋ όοΫάϥ΢ϯυΞοϓϩʔυ ͬͯԿʁ

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w J04Ҏ߱ͷόοΫάϥ΢ϯυΞοϓϩʔυॲཧ w #BDLHSPVOE5SBOTGFS4FSWJDF༻ͷ"1*ͱͯ͠/463-4FTTJPO ͰॲཧΛ࣮૷Ͱ͖·͢

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Ͳ͏͍͏ͱ͖࢖͏ w ଞͷΞϓϦΛ࢖͍ͬͯΔؒ΋ࣗ෼ͷΞϓϦͰൺֱతେ͖ͳϑΝΠϧ ΛΞοϓϩʔυͰ͖Δ w 4IBSF&YUFOTJPOͰJ04ඪ४ͷࣸਅBQQͳͲଞΞϓϦ͔Βίϯςϯ πΛબΜͰαʔόʔʹΞοϓϩʔυ͢Δࡍʹ΋ར༻͢Δͱศར

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͔͠͠ ࠷ॳʹݴ͓ͬͯ͘ͱ

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บ͕ڧ͍

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৭ʑ஌ͬͯͳ͍ͱ

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ѻ͍ͮΒ͍

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όοΫάϥ΢ϯυͬͯԿʁ w ΞϓϦ͕ϑΥΞάϥ΢ϯυͰͳ͍ͱ͖Ͱ΋ ಈ࡞Ͱ͖Δ w ϑΥΞάϥ΢ϯυͰͳ͍ͱݴͬͯ΋ɺ 4VTQFOEFEͱ͍͏ঢ়ଶ΍/PU3VOOJOHͱ ͍͏ঢ়ଶ΋ଘࡏͦ͠ͷঢ়ଶ͸ಈ࡞͠·ͤΜ w 4VTQFOEFE͸#BDLHSPVOEͱߦ͖དྷ͠· ͢

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όοΫάϥ΢ϯυ௨৴ॲཧ ʹؔ܎͢Δྺ࢙ͷ͓͞Β͍ ݹ͔͘Β͋ΔJ04࣌୅ͱJ04͔Βͷҧ͍

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J04࣌୅͔ΒͷόοΫάϥ΢ϯυ ॲཧԆ௕ w ༗ݶͳλεΫͷԆ௕ॲཧʢ&YFDVUJOH'OJUF-FOHUI5BTLTʣ ͱ͍͏ͷ͕͋Γ͜ͷॲཧ͸όοΫάϥ΢ϯυঢ়ଶͰॲཧΛߦ͏ w ௨৴͠Α͏ͱࢥ͑͹Ͱ͖Δ

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88%$ ʢJ04Ќൃද౰࣌ʣ ͷਤΛݟͯΈΔ

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J04͔ΒJ04ͷόοΫάϥ΢ϯυ࣮ߦ 88%$8IBUTOFXNVMUJUBTLJOHΑΓ όοΫάϥ΢ϯυͰλεΫͷ ॲཧԆ௕͸࿈ଓ͍ͯͨ͠ ը໘ΛϩοΫͯ͠΋ J1IPOFΛεϦʔϓ͍ͯ͠ͳ͔ͬͨ όοςϦʔෛՙ͕ߴ͔ͬͨ

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J04Ҏ߱ͷόοΫάϥ΢ϯυ࣮ߦ 88%$8IBUTOFXNVMUJUBTLJOHΑΓ όοΫάϥ΢ϯυͰλεΫͷ ॲཧԆ௕͸ඈͼඈͼʹͳΔ ը໘ΛϩοΫ͢Δͱ J1IPOF͸4MFFQ͢Δ

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J04ͷ࣌ܥྻͰݟΔόοΫάϥ΢ϯυ௨৴ J04 J04 ʮ༗ݶλεΫͷॲཧԆ௕ʯͰ ෼͚ͩಈ࡞Մೳ ʮ༗ݶλεΫͷॲཧԆ௕ʯͰ ෼͚ͩಈ࡞Մೳ #BDLHSPVOE5SBOTGFS 4FSWJDF

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͜͜·Ͱͷ·ͱΊ w J04͔ΒJ04͸෼ؒॲཧԆ௕Ͱ޷͖ʹͰ͖ͨ w σόΠε΁ͷෛՙ͕ܹ͍͠ w J04Ҏ߱͸ॲཧԆ௕Λ෼ʹ୹͘͠ݸผʹઐ༻ͷ"1*Λ࢖ ͏Α͏ʹͳͬͨ

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όοΫάϥ΢ϯυΞοϓ ϩʔυͷ࢓༷ʹ͍ͭͯ

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؆୯ͳಛ௃ w Ξοϓϩʔυ͸J04্ͷΩϡʔʹੵ·Ε੍ޚ͞ΕΔ w ύϑΥʔϚϯε࠷దԽͷͨΊʹγεςϜͷ࠷ྑͰ εέδϡʔϦϯά͞ΕΔ w ࣦഊͨ͠ΒࣗಈϦτϥΠ͞ΕΔ

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"QQMF͕ఏ͍ࣔͯ͠ΔόοΫά ϥ΢ϯυ௨৴ͷ੍໿ʹ͍ͭͯ

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w /463-4FTTJPO͸ΫϩʔδϟͰͳ͘EFMFHBUFΛ࢖ ͏ w Ξοϓϩʔυ͢ΔϑΝΠϧ͸%BUBΫϥε͔ΒϑΝ Πϧͱͯ͠ग़ྗͯ͠ύεΛ౉͢ w όοΫάϥ΢ϯυ༻ʹͳΔ΂͘ϢχʔΫͳ*%Λ࡞੒ ͢Δ ੍໿

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ͳ͔ͥ

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ΞϓϦ J04 EFMFHBUFͱͯ͠Πϯελϯε౉͢ EFMFHBUFͷϝιουݺͼग़͠ σʔϞϯϓϩηε Ξοϓϩʔυ͢ΔϑΝΠϧ w ΞϓϦ͕όοΫάϥ΢ϯυͷঢ়ଶͰ΋ Ξοϓϩʔυ͢ΔͨΊɺJ04͸σʔϞϯ ϓϩηεʹ௨৴Λ೚ͤΔ ࢀߟ<ॻ੶>্Λ໨ࢦ͢ϓϩάϥϚʔͷͨΊͷJ1IPOFΞϓϦ։ൃςΫχοΫJ04ฤ w σʔϞϯ͸ϑΝΠϧύεʹΞΫηε ͦ͠ͷϑΝΠϧΛΞοϓϩʔυ͢Δ w ׬ྃ௨஌͸σʔϞϯ͕EFMFHBUFϝ ιουΛݺͼग़͢

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w ͓ͦΒ͘ɺJ04ͷϓϩηε͕௨৴Λࣝผ͢ΔͨΊ w ͦͷͨΊɺಉ͡*%Λෳ਺ಉ࣌ʹ࢖ͬͯ௨৴ͯ͠͸͍͚ͳ͍ w ௨৴͕ऴΘ͔ͬͯΒͦͷ*%Λ࢖͍·Θ͢ͷ͸໰୊ͳ͍ ʢͱࢥ͏ʣ όοΫάϥ΢ϯυ*%ΛҰҙʹ ܾΊΔඞཁ͕͋Δཧ༝

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ϓϩδΣΫτ΁ͷಋೖ

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·ͣ͸͡Ίʹ όοΫάϥ΢ϯυͷίʔυྫ

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ओཁͳΫϥεͱEFMFHBUF w 63-3FRVFTU w 63-4FTTJPO w 63-4FTTJPO%FMFHBUF w 63-4FTTJPO$POpHVSBUJPO w 63-4FTTJPO5BTL w 63-4FTTJPO%FMFHBUF

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/// - Parameter: /// - fileURL: Ξοϓϩʔυ͢ΔσʔλΛϩʔΧϧͰϑΝΠϧԽͨ͠URL /// - identifier: ϢχʔΫͳID func upload(fileURL: URL, identifier: String) { let config = URLSessionConfiguration.background(withIdentifier: identifier) let session = URLSession(configuration: config, delegate: self, delegateQueue: nil) let request = makeRequest(with: fileURL) let task = session.uploadTask(with: request, fromFile: fileURL) task.resume() } // 1: URLSessionConfigurationΛ࡞੒ // 2: URLSessionΛ࡞੒ // 3: URLRequestΛ࡞੒(ϦΫΤετύϥϝʔλΛ૊ΈཱͯΔͨΊϚϧνύʔτͳURLRequestΛ࡞ͬͯฦ͢) // 4: URLSession͔ΒUploadTaskΛऔΓग़͢ʢΞοϓϩʔυ͢ΔϑΝΠϧͷ৔ॴ͕ඞཁʣ Ξοϓϩʔυͷखଓ͖

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/// Ξοϓϩʔυਐḿ࣌ʹݺͼग़͞ΕΔ func urlSession(_ session: URLSession, task: URLSessionTask, didSendBodyData bytesSent: Int64, totalBytesSent: Int64, totalBytesExpectedToSend: Int64) { /// ΞοϓϩʔυࡁΈͷbyte਺ͰਐḿΛͱΔ… /// task͔ΒΩϟϯηϧͰ͖Δ… } /// Ξοϓϩʔυ׬ྃ࣌ʹݺͼग़͞ΕΔ func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) { /// task͔ΒεςʔλείʔυΛऔΓग़ͨ͠Γ… /// ׬ྃॲཧ… } ݺͼग़͞ΕΔ%FMFHBUF

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͜ΕͰόοΫάϥ΢ϯυͰ ΋ΞοϓϩʔυͰ͖·͢

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"QQMFͷαϯϓϧίʔυ w /463-4FTTJPOͰ#BDLHSPVOE5SBOTGFSʹΑ Δμ΢ϯϩʔυ w ը૾Λμ΢ϯϩʔυ͢ΔͷΈ w ͜ΕΛΞοϓϩʔυʹ࣮૷Λม͑ಈ࡞Λ֬ೝ͢ Δ w ௨৴ϥΠϒϥϦʹཔΒͳ͍΄͏͕ޙʑॿ͔Δʢޙ ड़ʣ 4JNQMF#BDLHSPVOE5SBOTGFS

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໾ʹཱͭπʔϧ w /FUXPSL-JOL$POEJUJPOFSʢ௨৴ঢ়گΛѱ͘ग़དྷ Δʣ w $IBSMFTʢ1SPYZπʔϧʣ w 4XJGUZCFBWFSʢϩάϥΠϒϥϦʣ

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w .BDʹΠϯετʔϧ͢ΔϓϩΩγαʔόʔ $IBSMFT w J1IPOF୺຤ͱಉ͡8J'JͷNBDʹೖΕΔ w 8FC"1*ͷϦΫΤετΛΤϯυϙΠϯτͰ USFFදࣔͯ͘͠ΕΔ w ϦΫΤετ͕࣌ؒ࢒ΔͷͰαʔόʔଆʹ໰ ͍߹ΘͤΔࡍʹҰؾʹָʹͳͬͨ w D63-ίϚϯυΛੜ੒Ͱ͖Δ

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w αʔόʹϩάΛૹͬͯͦΕΛઐ༻ͷ.BD BQQͰ֬ೝͰ͖Δˠ w ஗Ԇ͕͋ΔͷͰ͋·Γ໾ʹཱͨͳ͍ 4XJGUZ#FBWFS w όοΫάϥ΢ϯυʹೖΔλΠϛϯάΛϩά Ͱ֬ೝ w όοΫάϥ΢ϯυதͷಈ࡞ΛςΩετग़ྗ

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όοΫάϥ΢ϯυΞοϓϩʔυ ͸·ΓͲ͜Ζ

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όοΫάϥ΢ϯυಈ࡞࣌ͷ UJNFPVU*OUFSWBM'PS3FRVFTUͷ ͕࣌ؒมߋͰ͖ͳ͍ ఘΊͯΔ

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λΠϜΞ΢τؔ࿈ͷϓϩύςΟ w UJNFPVU*OUFSWBM'PS3FRVFTU w ϦΫΤετͷλΠϜΞ΢τɻ৽͍͠σʔλΛड ͚औΔͨͼʹϦηοτ͞ΕΔʢ෼͔ΓͮΒ͍ʣ w UJNFPVU*OUFSWBM'PS3FTPVSDF w Ϧιʔεʹର͢ΔλΠϜΞ΢τɻ͜ͷ࣌ؒͷؒϦ τϥΠΛ܁Γฦ͠ɺ͜ΕΛ௒͑ͯ௨৴ΛߦΘͳ͍

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UJNFPVU*OUFSWBM'PS3FRVFTUͬͯ͜͏͍͏͜ͱʁ ϦΫΤετ࣌ؒ αʔόͰͷॲཧ࣌ؒ Ϩεϙϯε ࣌ؒ όοΫάϥ΢ϯυ࣌ ඵ Ҏ಺͡Όͳ͍ͱ λΠϜΞ΢τʁ ϦΫΤετ UJNF

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UJNFPVU*OUFSWBM'PS3FTPVSDFͬͯ͜͏͍͏͜ͱ ϦτϥΠ ϦΫΤετ ϦτϥΠ λΠϜΞ΢τΛ௒͑Δͱ ϦτϥΠऴΘΓ UJNF

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๬ΜͰͳ͍উखͳϦτϥΠ UJNFPVU*OUFSWBM'PS3FTPVSDFΛ୹ͯ͘͠ରԠ

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UJNFPVU*OUFSWBM'PS3FTPVSDF ͷσϑΥϧτ͸೔ؒ ௕͗͢

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J04͔Βͷ࿩

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w ௨৴ͷεέδϡʔϦϯά༻ͷ"1*͕૿͍͑ͯΔ w ௨৴؂ࢹࣗ͠ಈͰ։࢝Λ஗ΒͤͨΓ w όοΫάϥ΢ϯυ࣌ʹࢦఆͨ࣌ؒ͠Ҏ߱ʹ௨৴͢Δ 88%$"EWBODFTJO/FUXPSLJOH 1BSU

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͍͞͝ʹ·ͱΊ w όοΫάϥ΢ϯυΞοϓϩʔυ͸J04͔Β͋ΔόοΫάϥ΢ϯυॲཧͷԆ ௕ͱࠞಉͦ͠͏ʹͳΔ͕ผ w ผϓϩηεͰಈ࡞͢ΔͷͰ9DPEFҎ֎ͷπʔϧ΋ઈର࢖ͬͨ΄͏͕͍͍ w ϦτϥΠपΓ͕ະͩʹṖͳͷͰ৘ใڞ༗͠·͠ΐ͏

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͝ਗ਼ௌ͋Γ͕ͱ͏ ͍͟͝·ͨ͠ ౤ථͷఔΑΖ͓͘͠ئ͍͠·͢