文件 1 的 1：WOODY.sol
pragma solidity 0.8.22;
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 {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
_owner = msg.sender;
emit OwnershipTransferred(address(0), _owner);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(isOwner());
_;
}
function isOwner() private view returns (bool) {
return msg.sender == _owner;
}
function renounceOwnership() public onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public onlyOwner {
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal {
require(newOwner != address(0));
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
}
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);
}
contract WOODY is Context, IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "Woody Woodpecker";
string private constant _symbol = "WOODY";
uint256 private constant _totalSupply = 10_000_000_000 * 10**18;
uint256 public maxWalletlimit = 200_000_001 * 10**18;
uint256 public maxTxLimit = 200_000_001 * 10**18;
uint256 public minSwap = 1_000_000 * 10**18;
uint8 private constant _decimals = 18;
IUniswapV2Router02 immutable uniswapV2Router;
address immutable uniswapV2Pair;
address immutable WETH;
address payable public marketingWallet;
bool public isOpen = false;
mapping(address => bool) public _whiteList;
mapping (address => bool) public _isBlacklisted;
uint256 public buyTax;
uint256 public sellTax;
uint8 private inSwapAndLiquify;
mapping(address => uint256) private _balance;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFees;
constructor() {
uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
WETH = uniswapV2Router.WETH();
buyTax = 80;
sellTax = 80;
_whiteList[msg.sender] = true;
_whiteList[address(this)] = true;
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
address(this),
WETH
);
marketingWallet = payable(0xdEb551f5375e55886daEAb8f53AF28516683AA6A);
_balance[msg.sender] = _totalSupply;
_isExcludedFromFees[marketingWallet] = true;
_isExcludedFromFees[msg.sender] = true;
_isExcludedFromFees[address(this)] = true;
_isExcludedFromFees[address(uniswapV2Router)] = true;
_allowances[address(this)][address(uniswapV2Router)] = type(uint256)
.max;
_allowances[msg.sender][address(uniswapV2Router)] = type(uint256).max;
_allowances[marketingWallet][address(uniswapV2Router)] = type(uint256)
.max;
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);
_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()] - amount
);
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 RemoveLimits() external onlyOwner {
maxWalletlimit = _totalSupply;
maxTxLimit = _totalSupply;
}
function ChangeTax(uint256 newBuyTax, uint256 newSellTax) external onlyOwner {
require(newBuyTax <= 10, "Must keep fees at 10% or less");
require(newSellTax <= 10, "Must keep fees at 10% or less");
buyTax = newBuyTax;
sellTax = newSellTax;
}
function EnableTrading() external onlyOwner {
isOpen = true;
}
function BlackListWallet(address[] calldata addresses) external onlyOwner {
for (uint256 i; i < addresses.length; ++i) {
_isBlacklisted[addresses[i]] = true;
}
}
function UnBlackListWallet(address[] calldata addresses) external onlyOwner {
for (uint256 i; i < addresses.length; ++i) {
_isBlacklisted[addresses[i]] = false;
}
}
function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(amount > 1e9, "Min transfer amt");
require(isOpen || _whiteList[from] || _whiteList[to], "Not Open");
require(!_isBlacklisted[from] && !_isBlacklisted[to], "To/from address is blacklisted!");
uint256 _tax;
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
_tax = 0;
} else {
if (inSwapAndLiquify == 1) {
_balance[from] -= amount;
_balance[to] += amount;
emit Transfer(from, to, amount);
return;
}
if (from == uniswapV2Pair) {
require(balanceOf(to).add(amount) <= maxWalletlimit);
require(amount <= maxTxLimit, "Buy transfer amount exceeds the maxTxLimit.");
_tax = buyTax;
} else if (to == uniswapV2Pair) {
uint256 tokensToSwap = _balance[address(this)];
if (tokensToSwap > minSwap && inSwapAndLiquify == 0) {
inSwapAndLiquify = 1;
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WETH;
uniswapV2Router
.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokensToSwap,
0,
path,
marketingWallet,
block.timestamp
);
inSwapAndLiquify = 0;
}
_tax = sellTax;
} else {
_tax = 0;
}
}
if (_tax != 0) {
uint256 taxTokens = (amount * _tax) / 100;
uint256 transferAmount = amount - taxTokens;
_balance[from] -= amount;
_balance[to] += transferAmount;
_balance[address(this)] += taxTokens;
emit Transfer(from, address(this), taxTokens);
emit Transfer(from, to, transferAmount);
} else {
_balance[from] -= amount;
_balance[to] += amount;
emit Transfer(from, to, amount);
}
}
receive() external payable {}
}
