ERC-721ã«ãŠã‘ã‚‹setApprovalForAllã‚’ç†è§£ã™ã‚‹ - Qiitaã¯ã˜ã‚ã« ERC-721ã¨ã¯ã€Ethereum上ã§Non-Fungible Token（NFT）を実ç¾ã™ã‚‹ãŸã‚ã®ç¾å®Ÿçš„ãªæ¨™æº–è¦æ ¼ã§ã™ã€‚ 以下ã®Eventã¨Functionã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã‚’実装ã™ã‚‹ã“ã¨ã§ã€æ§˜ã€…ãªç™ºè¡Œè€…ã®NFTを共通ã«å–り扱ã†ã“ã¨ãŒã§ãるよã†ã«ãªã‚Šã¾ã™ã€‚ interface ERC721 /* is ERC165 */ { event Transfer(address indexed _from, address indexed _to, uint256 indexed _tokenId); event Approval(address indexed _owner, address indexed _approved, uint256 indexed _tokenId); event ApprovalForAll(address indexed _owner, addre
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