boss2967的博客

1. Openzeppelin简介一个帮助我们在以太坊上建立安全智能合约的开发库，当前集成于truffle开发框架中。2. 用法2.1 安装truffle initnpm initnpm install openzeppelin-solidity使用：import “openzeppelin-solidity/contract/access/rbac/Roles.sol”...

1. SafeMath.sol: 安全运算pragma solidity ^0.4.24; /** * @title SafeMath * @dev Math operations with safety checks that throw on error */ // 安全的数学运算库library SafeMath { /** * @dev Multipli...

1. Rbac1.1 Roles.sol:角色管理pragma solidity ^0.4.24; import "./Roles.sol"; /** * @title RBAC (Role-Based Access Control) * @author Matt Condon (@Shrugs) * @dev Stores and provides setters and ...

1.signatureBouncer.sol: 签名保护合约，只有指定的角色才能进行签名pragma solidity ^0.4.24; import "../ownership/Ownable.sol";import "../access/rbac/RBAC.sol";import "../ECRecovery.sol"; /** * @title SignatureBounc...

1. ERC165.sol:通过指定接口ID查询接口pragma solidity ^0.4.24; /** * @title ERC165 * @dev https://github.com/ethereum/EIPs/blob/master/EIPS/eip-165.md */interface ERC165 { /** * @notice Query if a...

1. TokenMetaData.sol:对ERC-URI的设置pragma solidity ^0.4.21; import "../../token/ERC20/ERC20.sol"; /** * @title ERC-1047 Token Metadata * @dev See https://eips.ethereum.org/EIPS/eip-1046 * @dev ...

1. ERC20以太坊TOKEN的标准接口作用：为了让以太坊上的各类token合约有一个特征与接口的共同标准2. ERC20.sol:ERC20合约的扩展pragma solidity ^0.4.24; import "./ERC20Basic.sol"; /** * @title ERC20 interface * @dev see https://github.c...

1. ERC721:以太坊TOKEN的标准接口(不可分隔的资产)与ERC20相比，ERC721是用于处理不可分隔替换资产的另一种代币标准。可替换代币类似于现金货币，不可替换代币类似于房子，家具等。ERC721 TOKEN又叫NFT2. ERC721.sol:NFT 元信息pragma solidity ^0.4.24; import "./ERC721Basic.sol"; ...

1. Crowdsale.sol:众筹合约pragma solidity ^0.4.24; import "../token/ERC20/ERC20.sol";import "../math/SafeMath.sol";import "../token/ERC20/SafeERC20.sol"; /** * @tit