// SPDX-License-Identifier: GPL-3.0 pragma solidity 0.8.10; library safeMath { function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } } interface IERC20 { // 获取合约地址 function getAddress() external view returns (address); // 获取代币发行总量 function totalSupply() external view returns (uint256); // 根据地址获取代币的余额 function balanceOf(address ...