团队收取手续费基本上是和打进黑洞的转账操作是差不多的
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.2;
import "./ERC20.sol";
contract Token is ERC20{
string private _name; //币名字
string private _symbol; //币符号
address public deadwallet = 0x0000000000000000000000000000000000000000; //销毁地址
address public LiquityWallet; //铸币钱包
mapping(address => bool) public _isBlacklisted; //是否是黑名单,true表示这个地址是黑名单
uint256 public tradingEnabledTimestamp = 1627779600; //10:00pm //2021-08-1 9:00:00的时间戳，这里设置开盘时间，开盘时间逻辑后面再提，这里先注重防机器人
uint256 public launchedAt;
address private _marketingWalletAddress; //营销钱包，收手续费的
uint256 marketingFee = 4; //营销钱包收进的手续费
mapping(address => bool) private _isExcludedFromFees; //判断是否此账号需要手续费，true为不需要手续费
/*
* @dev 返回代币的名字
*/
function name() public view virtual returns (string memory) {
return _name;
}
/**
* @dev 返回代币的符号
*/
function symbol() public view virtual returns (string memory) {
return _symbol;
}
/**
* 返回代币精度
*/
function decimals() public pure virtual returns (uint8) {
return 18;
}
constructor() public{
_name='Token';
_symbol='Tk';
_mint(msg.sender, 10000000000000 * (10 ** 18)); //铸币给连接此合约的账号于10000000000000个币;
LiquityWallet=msg.sender;
// exclude from paying fees or having max transaction amount 排除支付费用或拥有最大交易金额
excludeFromFees(LiquityWallet, true); //排除流动性钱包的支付手续费和最大交易金额
excludeFromFees(address(this), true); //排除铸币钱包的支付手续费和最大交易金额
excludeFromFees(_marketingWalletAddress, true); //排除营销钱包的支付手续费和最大交易金额
}
//交易函数
function _transfer(address recipient, uint256 amount) public returns (bool) {
require(!_isBlacklisted[msg.sender], 'Blacklisted address'); //如果发送方是黑名单则禁止交易
if(LiquityWallet!=msg.sender) return super.transfer(recipient, amount); //如果铸币方是发送方则不需要销毁
if(block.timestamp
