文件 1 的 1:MEOWTH.sol
pragma solidity 0.8.20;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval (address indexed owner, address indexed spender, uint256 value);
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}
contract MEOWTH is Context, IERC20, Ownable {
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private bots;
mapping(address => uint256) public lastSellTime;
address payable private _taxWallet = payable(0xEDB94478199F48753FDE9AdDEd2eE6490Ae86aEF);
address payable private _devWallet = payable(0xBF44180c53e52AF382ab96001E35a675066ec13a);
address private uniswapV2Pair;
string private _name;
string private _symbol;
uint256 private _BuyTax;
uint256 private _SellTax;
uint8 private _decimals = 18;
uint256 private _tTotal;
uint256 public _maxTxAmount;
uint256 public _maxWalletSize;
uint256 public _taxSwapThreshold;
uint256 public _maxTaxSwap;
IUniswapV2Router02 private uniswapV2Router;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
_name = "meowth";
_symbol = "MEOWTH";
_BuyTax = 0;
_SellTax = 0;
_tTotal = 8888888888 * 10**_decimals;
_maxTxAmount = _tTotal * 1 / 100;
_maxWalletSize = _tTotal * 1 / 100;
_taxSwapThreshold = _tTotal * 5 / 10000;
_maxTaxSwap = _tTotal * 1 / 100;
_balances[_msgSender()] = _tTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_taxWallet] = true;
_isExcludedFromFee[_devWallet] = true;
_approve(msg.sender, address(uniswapV2Router), _tTotal);
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()] - amount);
return true;
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address from, address to, uint256 amount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
uint256 taxAmount=0;
if (from != owner() && to != owner()) {
require(!bots[from] && !bots[to], "Your address has been marked as a bot/sniper, you are unable to transfer or swap.");
if (!tradingOpen) {
require(uniswapV2Pair != from && uniswapV2Pair != to, "Trading is not active.");
}
if (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to] ) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
taxAmount = (amount * _BuyTax) / 100;
}
if (to != uniswapV2Pair && !_isExcludedFromFee[to]) {
require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
}
if(to == uniswapV2Pair && !_isExcludedFromFee[from]){
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(block.timestamp > lastSellTime[from], "No unclogging here ser");
lastSellTime[from] = block.timestamp;
taxAmount = (amount * _SellTax) / 100;
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold) {
swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
if(taxAmount>0){
_balances[address(this)]=_balances[address(this)] + taxAmount;
emit Transfer(from, address(this), taxAmount);
}
_balances[from] =_balances[from] - amount;
_balances[to]= _balances[to] + (amount - taxAmount);
emit Transfer(from, to, amount-taxAmount);
}
function min(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function removeLimits() external onlyOwner{
_maxTxAmount = _tTotal;
_maxWalletSize=_tTotal;
emit MaxTxAmountUpdated(_tTotal);
}
function sendETHToFee(uint256 amount) private {
_devWallet.transfer(amount/2);
_taxWallet.transfer(amount/2);
}
function addBots(address[] memory bots_) external onlyOwner {
for (uint i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function delBots(address[] memory notbot) external onlyOwner {
for (uint i = 0; i < notbot.length; i++) {
bots[notbot[i]] = false;
}
}
function isBot(address a) public view returns (bool){
return bots[a];
}
function changeBuyTax(uint256 _buyFee) external onlyOwner {
_BuyTax = _buyFee;
}
function changeSellTax(uint256 _sellFee) external onlyOwner {
_SellTax = _sellFee;
}
function openTrading() external onlyOwner() {
require(!tradingOpen,"trading is already open");
swapEnabled = true;
tradingOpen = true;
}
receive() external payable {}
}