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diffeasy. inc 7VFKTͱ4PMJEJUZͰ%BQQT !@UBLFTIJ@

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diffeasy. inc 2 /VYU 'JSFCBTF 7VF Թઘ ಡॻ (PMBOH 3VCZ ($1 ϒϩοΫνΣʔϯ إೱ͍ גࣜձࣾEJ⒎FBTZ σΟϑΟʔδʔ  औక໾$50 ੢෢࢙ ʹ͚ͨ͠͠  !@UBLFTIJ@ EPDLFS

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diffeasy. inc 3 ੈքதͷlΉ͔͍ͣ͠zΛ؆୯ʹ NBLFEJ⒏DVMUUIJOHTFBTZ

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diffeasy. inc 4 ໨ඪୡ੒ Ϛϯμϥʔτ

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diffeasy. inc 7VFKTͱ4PMJEJUZͰ%BQQT !@UBLFTIJ@

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diffeasy. inc 6 lΉ͔͍ͣ͠zݴ༿Λ؆୯ʹઆ໌

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diffeasy. inc 7 %BQQT ʹ%FDFOUSBMJ[FE"QQMJDBUJPOT ʹ෼ࢄܕΞϓϦέʔγϣϯ %BQQTͱ͸ʁ

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diffeasy. inc 8 4PMJEJUZͱ͸ʁ &UIFSFVN্Ͱಈ͘ +BWB4DSJQUϥΠΫͳ εϚʔτίϯτϥΫτ։ൃݴޠ

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diffeasy. inc 9 8FC ϒϩοΫνΣʔϯ ΍Γ͍ͨߏ੒

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diffeasy. inc 10 ϒϩοΫνΣʔϯ ࠓ೔͸͜͜ͷ࿩

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diffeasy. inc ͱΓ͋͑ͣσϞ 11

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diffeasy. inc 12 Ծ૝௨՟Λൃߦ

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diffeasy. inc w εϚʔτίϯτϥΫτͷ։ൃɺσϓϩΠɺ ςετɺϚΠάϨʔγϣϯ w &UIFSFVNͰτʔΫϯͷൃߦ 13 OpenZeppelin TruffleϑϨʔϜϫʔΫ

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diffeasy. inc 14 truffleϑϨʔϜϫʔΫΛΠϯετʔϧ $ npm install -g truffle truffleϑϨʔϜϫʔΫॳظԽ $ truffle init zeppelin-solidityΛΠϯετʔϧ $ npm install zeppelin-solidity 
 --save Πϯετʔϧ

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diffeasy. inc 15 &3$४ڌͷ τʔΫϯ ίϯτϥΫτ ΛσϓϩΠ͢Δ ϚΠάϨʔγϣϯ ϑΝΠϧ

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diffeasy. inc 16 pragma solidity ^0.4.18; import "zeppelin-solidity/contracts/token/ERC20/ StandardToken.sol"; contract DiffeasyCoin is StandardToken { string public constant name = "DiffeasyCoin"; string public constant symbol = "DEC"; uint8 public constant decimals = 18; constructor(uint256 _initialSupply) public { totalSupply_ = _initialSupply; balances[msg.sender] = _initialSupply; emit Transfer(0x0, msg.sender, _initialSupply); } } %J⒎FBTZ$PJOTPM

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diffeasy. inc 17 const DiffeasyCoin = artifacts.require('./DiffeasyCoin.sol') module.exports = (deployer) => { const initialSupply = 50000e18 deployer.deploy(DiffeasyCoin, initialSupply) } @EFQMPZ@EJ⒎FBTZ@DPJOKT

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diffeasy. inc 18 $ truffle develop Truffle Develop started at http://127.0.0.1:9545/ Accounts: (0) 0x627306090abab3a6e1400e9345bc60c78a8bef57 (1) 0xf17f52151ebef6c7334fad080c5704d77216b732 (2) 0xc5fdf4076b8f3a5357c5e395ab970b5b54098fef (3) 0x821aea9a577a9b44299b9c15c88cf3087f3b5544 (4) 0x0d1d4e623d10f9fba5db95830f7d3839406c6af2 (5) ɾɾɾɾ Private Keys: (0) c87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec (1) ae6ae8e5ccbfb04590405997ee2d52d2b330726137b875053c36d (2) 0dbbe8e4ae425a6d2687f1a7e3ba17bc98c673636790f1b8ad911 (3) c88b703fb08cbea894b6aeff5a544fb92e78a18e19814cd85da83 (4) 388c684f0ba1ef5017716adb5d21a053ea8e90277d0868337519f (5) ɾɾɾɾ ։ൃ༻ͷ&UIFSFVN؀ڥΛىಈ

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diffeasy. inc 19 ϑϩϯτΤϯυͱ࿈ܞ

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diffeasy. inc 20 NuxtΛΠϯετʔϧ $ vue init nuxt-community/starter- template front Web3.jsΠϯετʔϧ $ npm install web3 @types/node truffle-contract --save Πϯετʔϧ

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diffeasy. inc 21 &UIFSFVNͱ઀ଓ import Web3 from 'web3' const web3 = new Web3(new Web3.providers.HttpProvider ("http://127.0.0.1:9545/")) if (typeof web3.currentProvider.sendAsync !== "function") { web3.currentProvider.sendAsync = function() { return web3.currentProvider.send.apply( web3.currentProvider, arguments ); }; } export default web3 QMVHJOTXFCKT

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diffeasy. inc 22 &UIFSFVN্ͷΞΧ΢ϯτϦετऔಘ web3.eth.getAccounts() ΞΧ΢ϯτͷԾ૝௨՟࢒ߴऔಘ const dec = contract(DiffeasyCoin) dec.setProvider(web3.currentProvider) const instance = await dec.deployed() const balances 
 ɹɹɹ= awaitɹinstance.balanceOf(account) XFCΛ࢖ͬͯ&UIFSFVNͱ઀ଓ

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diffeasy. inc 23 "͔Β#ʹԾ૝௨՟औҾ const dec = contract(DiffeasyCoin) dec.setProvider(web3.currentProvider) const instance = await dec.deployed() await instance.transfer ɹɹɹɹɹ(to, balance, { from: from }) XFCΛ࢖ͬͯ&UIFSFVNͱ઀ଓ

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diffeasy. inc 24 ϒϩοΫνΣʔϯ ར༻ͨ͠αʔϏε৭ʑ

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diffeasy. inc 25 ετϨʔδ ࿀Ѫ Ξʔτ Իָ

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diffeasy. inc ຊ౰ʹϒϩοΫνΣʔϯ ͕ඞཁ͔ʁ 26

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diffeasy. inc w தԝूݖతͳ؅ཧऀ͕͍ͳ͍͜ͱ ͕ຊ౰ʹྑ͍͔ʁ w վ͟Μʢमਖ਼ʣ͕ࠔ೉ͳ͜ͱ͕
 ຊ౰ʹྑ͍͔ʁ 27

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diffeasy. inc w σʔλ͕ίϐʔͰ͖ͳ͍Θ͚Ͱ͸ ͳ͍ w ӡӦऀͷ৴པੑ͕ॏཁͳϙΠϯτ ͔ʁ 28

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diffeasy. inc 29 ੈքதͷ“Ή͔͍ͣ͠”Λ
 ؆୯ʹ