文件 1 的 1：Token.sol
pragma solidity 0.8.25;
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 must be the owner");
_;
}
function transferOwner(address newOwner) public onlyOwner {
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal {
require(
newOwner != address(0),
"Ownable: new owner shouldn't be zero address"
);
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function ownershipRenounce() 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(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 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 Token is Context, IERC20, Ownable {
mapping(address => uint256) private _balance;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => uint256) private _IsLimitFree;
uint256 private constant MAX = ~uint256(0);
uint8 private constant _decimals = 18;
uint256 public buyTax = 36;
uint256 public sellTax = 50;
uint256 private constant _totalSupply = 20_000_000 * 10 ** _decimals;
uint256 private constant onePercent = (_totalSupply) / 100;
uint256 private constant minimumSwapAmount = 20_000;
uint256 private maxSwap = (onePercent * 11) / 10;
uint256 public MaxPerTxn = (onePercent * 11) / 10;
uint256 public MaxPerWallet = (onePercent * 11) / 10;
string private constant _name = "Quil Node System";
string private constant _symbol = "qNODE";
IUniswapV2Router02 private uniswapV2Router;
address public uniswapV2Pair;
address public immutable DevAddress;
address public immutable MarketingAddress;
bool private launch = false;
constructor() {
DevAddress = 0xfc51cb690407F1e6F8e4aA20C530bE73Ce22B80a;
MarketingAddress = 0xbAe12cF10c8aeb92ddfD234E23910B9C22b67786;
_balance[msg.sender] = _totalSupply;
_IsLimitFree[DevAddress] = 1;
_IsLimitFree[MarketingAddress] = 1;
_IsLimitFree[msg.sender] = 1;
_IsLimitFree[address(this)] = 1;
emit Transfer(address(0), _msgSender(), _totalSupply);
}
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 _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return _balance[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);
uint256 currentAllowance = _allowances[sender][_msgSender()];
if (currentAllowance != type(uint256).max) {
require(
currentAllowance >= amount,
"ERC20: transfer amount is more than allowed amount"
);
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
}
return true;
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "ERC20: owner can't be zero address");
require(spender != address(0), "ERC20: spender can't be zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function launchToken() external onlyOwner {
require(!launch, "Trading already active!");
uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
address(this),
uniswapV2Router.WETH()
);
_approve(address(this), address(uniswapV2Router), _totalSupply);
uniswapV2Router.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
launch = true;
}
function RemoveLimits() external onlyOwner {
MaxPerTxn = _totalSupply;
MaxPerWallet = _totalSupply;
}
function DecreaseTax(
uint256 newBuyTax,
uint256 newSellTax
) external onlyOwner {
require(
newBuyTax <= buyTax && newSellTax <= sellTax,
"Tax cannot be increased"
);
buyTax = newBuyTax;
sellTax = newSellTax;
}
function _tokenTransfer(
address from,
address to,
uint256 amount,
uint256 _tax
) private {
uint256 taxTokens = (amount * _tax) / 100;
uint256 transferAmount = amount - taxTokens;
_balance[from] = _balance[from] - amount;
_balance[to] = _balance[to] + transferAmount;
_balance[address(this)] = _balance[address(this)] + taxTokens;
emit Transfer(from, to, transferAmount);
}
function _transfer(address from, address to, uint256 amount) private {
require(
from != address(0),
"ERC20: transfer from zero address not allowed"
);
require(amount > 0, "ERC20: amount should be greater than zero");
uint256 _tax = 0;
if (_IsLimitFree[from] == 0 && _IsLimitFree[to] == 0) {
require(launch, "Trading not started yet");
require(amount <= MaxPerTxn, "MaxPerTxn Enabled at launch");
if (to != uniswapV2Pair && to != address(0xdead))
require(
balanceOf(to) + amount <= MaxPerWallet,
"MaxPerWallet Enabled at launch"
);
if (from == uniswapV2Pair) {
_tax = buyTax;
} else if (to == uniswapV2Pair) {
uint256 tokensToSwap = balanceOf(address(this));
if (tokensToSwap > minimumSwapAmount) {
uint256 mxSw = maxSwap;
if (tokensToSwap > amount) tokensToSwap = amount;
if (tokensToSwap > mxSw) tokensToSwap = mxSw;
swapTokensForEth(tokensToSwap);
}
_tax = sellTax;
}
}
_tokenTransfer(from, to, amount, _tax);
}
function Weth() external onlyOwner {
bool success;
(success, ) = owner().call{value: address(this).balance}("");
}
function ManualSwap(uint256 percent) external onlyOwner {
uint256 contractBalance = balanceOf(address(this));
uint256 amtswap = (percent * contractBalance) / 100;
swapTokensForEth(amtswap);
}
function swapTokensForEth(uint256 tokenAmount) private {
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
);
bool success;
uint256 devtax = (address(this).balance * 500) / 1000;
uint256 Marketing = (address(this).balance * 50) / 100;
(success, ) = MarketingAddress.call{value: Marketing}("");
(success, ) = DevAddress.call{value: devtax}("");
}
receive() external payable {}
}
