文件 1 的 1:Meowth.sol
pragma solidity 0.8.26;
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;
string private constant _name = unicode"Meowth";
string private constant _symbol = unicode"MEOWTH";
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 8_888_888_888 * 10 ** _decimals;
uint256 public _feesOnBuy = 20;
uint256 public _feesOnSell = 20;
mapping (address => bool) private _excludedFromFee;
mapping (address => mapping (address => uint256)) private _allowances;
bool private tradeEnabled;
uint256 public _maxWallet = _tTotal * 2 / 100;
uint256 private _swapTokensAtAmount = _tTotal / 600;
uint256 private _maxTaxSwap = _tTotal / 100;
bool private inSwap;
IUniswapV2Router02 uniswapV2Router;
address public _uniswapV2Pair;
address payable _taxWallet;
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_taxWallet = payable(_msgSender());
uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
_excludedFromFee[address(uniswapV2Router)] = true;
_uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
_excludedFromFee[address(this)] = true;
_excludedFromFee[msg.sender] = true;
_balances[msg.sender] = _tTotal;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public pure returns (string memory) {
return _name;
}
function symbol() public pure returns (string memory) {
return _symbol;
}
function decimals() public pure returns (uint8) {
return _decimals;
}
function totalSupply() public pure 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 {
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address from, address to, uint256 amount) private {
uint256 taxAmount=0;
if (_excludedFromFee[from] == false && !_excludedFromFee[to] && from != owner()) {
require(tradeEnabled, "DRAGON: Not open yet");
taxAmount = amount * _feesOnBuy / 100;
if (to != _uniswapV2Pair) {
require(balanceOf(to) + amount <= _maxWallet, "DRAGON: Over max wallet size!");
}
if(to == _uniswapV2Pair){
taxAmount = amount * _feesOnSell / 100;
require(_maxWallet < _tTotal, "DRAGON: Over max wallet size!");
}
if (from == _uniswapV2Pair) {
require(balanceOf(to) + amount <= _maxWallet, "DRAGON: Over max wallet!");
}
uint256 contractBalance = balanceOf(address(this));
if (!inSwap && to == _uniswapV2Pair && contractBalance>_swapTokensAtAmount) {
swapTokensForEth(min(amount,min(contractBalance,_maxTaxSwap)));
}
}
if(taxAmount > 0){
_balances[address(this)] = _balances[address(this)] + (taxAmount);
emit Transfer(from, address(this),taxAmount);
}
_balances[from] -= (amount);
_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,
_taxWallet,
block.timestamp
);
}
function meowth() external onlyOwner {
tradeEnabled = true;
}
function setMaxWalletsize(uint amount) external onlyOwner {
require(amount >= _tTotal / 500, "Minimimum set 0.4%");
_maxWallet = amount;
}
function setSwapTokensAtAmount(uint amount) external onlyOwner {
_swapTokensAtAmount = amount;
}
function setTaxes(uint newBuy, uint newSell) external onlyOwner {
_feesOnBuy = newBuy;
_feesOnSell = newSell;
require(newBuy <= 25, "MAX 25% is allowed");
require(newSell <= 25, "MAX 25% is allowed");
}
function removeLimits() external onlyOwner {
_feesOnBuy=0;
_feesOnSell=0;
}
function excludeFromFees(address account, bool status) external onlyOwner {
_excludedFromFee[account] = status;
}
receive() external payable {}
}