tintinland-class7 CloneFactory合约(contract CloneFactory)：定义在/contracts/ERC20V3SimpleFactory.sol ERC20 模板合约(contract InitializableERC20)：定义在/contracts/InitializableERC20.sol 创建代币工厂合约(contract ERC20V3SimpleFactory)：定义在/contracts/ERC20V3SimpleFactory.sol