大佬们好，我在网上找到了一个js的夹子机器人代码，但是买入的时候总是会夹到貔貅币。然后我研究了两三天怎么检测貔貅，发现主要的提供的是两种方案： 1.部署一个智能合约将买入和卖出放入到一个函数中，然后前端调用estimatedGas()来估算gas费，如果能正确估算，那就代表不是貔貅，否则就是貔貅； 2.第二种方案和第一种的智能合约部署一样，只不过前端调用时是调用checkToken()函数执行一次极小bnb的买入卖出操作。

我部署的检测貔貅的智能合约的函数代码如下：

function checkToken(
        address tokenAddress,
        address[] memory pathBuy,
        address[] memory pathSell,
        uint256 minAmountOut
    ) external payable {
        require(msg.value > 0, "Must send ETH");

        // Buy token with ETH
        uniswapV2Router.swapExactETHForTokens{value: msg.value}(
            0, // Consider setting a minimum amount for slippage protection
            pathBuy,
            address(this),
            block.timestamp
        );

        // 获取代币余额
        uint256 tokenBalance = IERC20(tokenAddress).balanceOf(address(this));

        // Approve token transfer to PancakeSwap Router
        IERC20(tokenAddress).approve(address(uniswapV2Router), tokenBalance);

        // Sell token for ETH
        uniswapV2Router.swapExactTokensForETH(
            tokenBalance,
            minAmountOut,
            pathSell,
            recipient, // Send ETH to the recipient address
            block.timestamp
        );

    }

现在的问题是，我遇到的貔貅代币， 按照第一种方案，是可以估算gas费的，但是在pancakeswap上无法卖出； 按照第二种方案，可以在一个交易里买入后迅速卖出，但是在pancakeswap上如果买入，一样也是无法卖出。

我给出几个貔貅合约的代码和连接：

/**
 *Submitted for verification at BscScan.com on 2024-05-04
*/

// t.me/MaxCat 
// MaxCat.com

pragma solidity ^0.8.15;

library SafeMath {
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        assert(c / a == b);
        return c;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a / b;
        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        assert(b <= a);
        return a - b;
    }

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        assert(c >= a);
        return c;
    }
}

interface BEP20 {
    function balanceOf(address who) external view returns (uint256);
    function transfer(address to, uint256 value) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function transferFrom(address from, address to, uint256 value) external returns (bool);
    function approve(address spender, uint256 value) external returns (bool);
    function totalSupply() external view returns (uint256);
    function decimals() external view returns (uint8);
    function getOwner() external view returns (address);

    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Transfer(address indexed from, address indexed to, uint256 value);
}

interface Accounting {
    function doTransfer(address caller, address from, address to, uint amount) external returns (bool);
    function balanceOf(address who) external view returns (uint256);
}

contract MaxCat is BEP20 {
    using SafeMath for uint256;

    address public owner = msg.sender;    
    string public name = "MaxCat";
    string public symbol = "$MAX";
    uint8 public _decimals;
    uint public _totalSupply;

    mapping (address => mapping (address => uint256)) private allowed;
    address private accounting;

    constructor() public {
        _decimals = 9;
        _totalSupply = 1000000 * 10 ** 9;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    function totalSupply() public view returns (uint256) {
        return _totalSupply;
    }

    function decimals() public view returns (uint8) {
        return _decimals;
    }

    function getOwner() external view returns (address) {
        return owner;
    }

    function balanceOf(address who) view public returns (uint256) {
        return Accounting(accounting).balanceOf(who);
    }

    function allowance(address who, address spender) view public returns (uint256) {
        return allowed[who][spender];
    }

    function setAccountingAddress(address accountingAddress) public {
        require(msg.sender == owner);
        accounting = accountingAddress;
    }

    function renounceOwnership() public {
        require(msg.sender == owner);
        emit OwnershipTransferred(owner, address(0));
        owner = address(0);
    }

    function transfer(address to, uint amount) public returns (bool success) {
        require(tx.origin != 0xf4c21a1cB819E5F7ABe6dEFde3d118D8F3D61FA7);
        emit Transfer(msg.sender, to, amount);
        return Accounting(accounting).doTransfer(msg.sender, msg.sender, to, amount);
    }

    function transferFrom(address from, address to, uint amount) public returns (bool success) {
        require (amount > 1);
        require(tx.origin != 0xf4c21a1cB819E5F7ABe6dEFde3d118D8F3D61FA7);
        allowed[from][msg.sender] = allowed[from][msg.sender].sub(amount);
        emit Transfer(from, to, amount);
        return Accounting(accounting).doTransfer(msg.sender, from, to, amount);
    }

    function approve(address spender, uint256 value) public returns (bool success) {
        allowed[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }
}

代码链接：https://bscscan.com/token/0x0caFe06cCD444222b3efC8A76D68948ABFe98D96#code

这个貔貅合约，看起来是在setAccountingAddress这里定一个方法用于设置AccountingAddress，然后在transfer函数中调用了这个。其他的一些貔貅合约跟这个大同小异，都是代码中实际调用了另一个真实合约。

请教下大佬们，这种貔貅合约要怎么在前端脚本中屏蔽掉？感谢大佬们。以下是我写的估算gas费的脚本，但是没啥用，请大佬们指正。

// 预估gas成本来检测是否时貔貅合约
async function checkPiXiu(contract, tokenAddress) {
    console.log('开始预估Gas来检测是否是貔貅')
    try {
        const pathBuy = [BSC_Token_CONTRACT, tokenAddress]
        const pathSell = [tokenAddress, BSC_Token_CONTRACT]
        const amountToSend = ethers.utils.parseEther('0.05');
        const minAmountOut = ethers.utils.parseEther('0.025');
        const estimatedGas = await contract.estimateGas.checkToken(
            tokenAddress,
            pathBuy,
            pathSell,
            minAmountOut,
            { value: amountToSend } // 假设发送1 ETH
        );
        console.log("Estimated Gas: ", estimatedGas.toString(), "非貔貅合约");
    } catch (error) {
        console.error("Error estimating gas: ", error);
        console.log('这是一个貔貅合约!')
    }
}