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// SPDX-License-Identifier: GPL-3.0 //array -dynamic or fixed size //Initialization // Insert(push),get, update, delete,pop, length // createing array 阅读全文
摘要:
// SPDX-License-Identifier: GPL-3.0 pragma solidity ^0.8.7; contract FunctionOutputs { function returnMany() public pure returns (uint, bool) { return 阅读全文
摘要:
// SPDX-License-Identifier: GPL-3.0 pragma solidity ^0.8.7; contract Ownable { address public owner; constructor() { owner = msg.sender; } modifier on 阅读全文