2019-11-29 blockchain.tokyo#23 Dapp開発Special https://blockchain-tokyo.connpass.com/event/154664/
4USJOHΛͲ͏ʹ͔͢ΔCMPDLDIBJOUPLZPEPVCMFKVNQUPLZPגࣜձࣾϦʔυΤϯδχΞຬ྄
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w 3FCVJMEJOHUIFGVUVSFPGHBNJOH XJUICMPDLDIBJOUFDIOPMPHZw ݄ۀw ϒϩοΫνΣʔϯήʔϜઐۀ։ൃձࣾw ैۀһਓʢۀҕୗΛؚΉʣw ϒϩοΫνΣʔϯʹҙͷ͋ΔΤϯδχΞΛੵۃ࠾༻தͰ͢ʂEPVCMFKVNQUPLZPגࣜձࣾ
w ຬ྄ʢ.BO[PLV3ZPʣw EPVCMFKVNQUPLZPϦʔυΤϯδχΞw ݄ΑΓΠϯϑϥઃܭӡ༻ɺαʔόαΠυ։ൃɺ4NBSU$POUSBDU։ൃɺϒϩοΫνΣʔϯٕज़ௐࠪͳͲΛ୲w աڈʹιʔγϟϧήʔϜձࣾɺ&E5FDIΞϓϦձࣾͰΠϯϑϥΤϯδχΞͱͯ͠"84Λத৺ͱͨ͠ΫϥυΠϯϑϥ͔ΒΞϓϦ·ͰͷશମઃܭɺߏஙɺվળΛܦݧࣗݾհ
4PMJEJUZॻ͍ͯ·͔͢ʁ
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&UISFVN͔Β֎ͷੈքΛࢀর͢Δ߹ʹ͏
4PMJEJUZEPFTOPUIBWFTUSJOHNBOJQVMBUJPOGVODUJPOT CVUUIFSFBSFUIJSEQBSUZTUSJOHMJCSBSJFThttps://solidity.readthedocs.io/en/v0.5.13/types.html#bytes-and-strings-as-arrays
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w MFO TUSw TUSMFOHUIw CZUFT TUSMFOHUI2จࣈྻͷ͞
w MFO TUSw 4PMJEJUZʹΈࠐΈͷMFO ଘࡏ͠ͳ͍w TUSMFOHUIw .FNCFSMFOHUIOPUGPVOEPSOPUWJTJCMFBGUFS[email protected]w CZUFT TUSMFOHUIw ˓"จࣈྻͷ͞
TUSJOHJTFRVBMUPCZUFTCVUEPFTOPUBMMPXMFOHUIPSJOEFYBDDFTThttps://solidity.readthedocs.io/en/v0.5.13/types.html#bytes-and-strings-as-arrays
w TUSTUSw LFDDBL TUSLFDDBL TUSw LFDDBL BCJFODPEF1BDLFE TLFDDBL BCJFODPEF1BDLFE T2จࣈྻͷൺֱ
w TUSTUSw ඇਪw LFDDBL TUSLFDDBL TUSw ͪΐͬͱલ·Ͱ͜Ε͕ਪ͞Ε͍ͯͨw LFDDBL BCJFODPEF1BDLFE TLFDDBL BCJFODPEF1BDLFE Tw ˓W͔ΒυΩϡϝϯτʹొ"จࣈྻͷൺֱ
w TUSTUSw CZUFT TUSCZUFT TUSw BCJFODPEF1BDLFE TUS TUSw Ͳ͏ʹ͔͢Δ2จࣈྻͷ࿈݁
w TUSTUSw TUSJOH"SSBZͳͷͰ͑·ͤΜw CZUFT TUSCZUFT TUSw CZUFT"SSBZͳͷͰ͑·ͤΜw BCJFODPEF1BDLFE TUS TUSw ˓W͔ΒυΩϡϝϯτʹొw Ͳ͏ʹ͔͢Δ"จࣈྻͷ࿈݁
BCJFODPEF1BDLFEΛΒͳ͔ͬͨࠒ
w TUS>w CZUFT>w Ͳ͏ʹ͔͢Δ2จࣈྻͷΓऔΓ
w TUS>w TUSJOHJTFRVBMUPCZUFTCVUEPFTOPUBMMPXMFOHUIPSJOEFYBDDFTTw CZUFT>w Έ͍ͨͳΞΫηεͰ͖ͳ͍ɻจࣈ͚ͩͳΒ͜ΕͰՄw Ͳ͏ʹ͔͢Δw ˓"จࣈྻͷΓऔΓ
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w TUSJOH Jw ͦΜͳ͘ͳ͍w TUSJOH BCJFODPEF1BDLFE Jw Ͱ͖Δ͔ͳͱࢥ͚ͬͨͲͦΜͳ͘ͳ͍w Ͳ͏ʹ͔͢Δw ˓"VJOUͷจࣈྻԽ
w BEESTUSJOH w TUSJOH BEESw TUSJOH BCJFODPEF1BDLFE BEESw Ͳ͏ʹ͔͢Δ2BEESFTTͷจࣈྻԽ
w BEESTUSJOH w ͦΜͳ͘ͳ͍w TUSJOH BEESw &YQMJDJUUZQFDPOWFSTJPOOPUBMMPXFEw TUSJOH BCJFODPEF1BDLFE BEESw &YQMJDJUUZQFDPOWFSTJPOOPUBMMPXFEw Ͳ͏ʹ͔͢Δˠ˓"BEESFTTͷจࣈྻԽ
w Ͳ͏ʹ͔͢Δ2จࣈྻͷ4QMJU
΄Μͱʹ͜ΕΛΔͷʁ
4PMJEJUZEPFTOPUIBWFTUSJOHNBOJQVMBUJPOGVODUJPOT CVUUIFSFBSFUIJSEQBSUZTUSJOHMJCSBSJFT
044Ͱެ։ͯ͠·͢ʂIUUQTHJUIVCDPNEPVCMFKVNQUPLZPNDIQMVTDPOUSBDUT
ϚΠΫϦΛ࢝ΊΑ͏ʂhttps://mch.gg/startটίʔυʮTHA4ʯ Λೖྗʂ