ERC20 代币合约 ————————————————————————————— 1 ERC20 代币合约 pragma solidity ^0.4.16; interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) external; } contract TokenERC20 { // Public variables of the token string public name; string public symbol; uint8 public decimals = 18; // 18 decimals is the strongly suggested default, avoid changing it uint256 public totalSupply; // This creates an array with all balances mapping (address => uint2...