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我对编码和加密货币创建真的很陌生，但我试图从 2 小时开始验证我的合同来源，但我总是得到错误：

“错误！无法生成合同字节码和 ABI 在源代码中找到以下合同名称：令牌但我们无法找到匹配的字节码 (err_code_2)”

这是我的代码：

 //SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.2;


contract Token {
    mapping(address => uint) public balances;
    mapping(address => mapping(address => uint)) public allowance;
    uint public totalSupply = 100000000000000000 * 10 ** 18;
    string public name = "No Marketing Coin";
    string public symbol = "NOMK";
    uint public decimals = 18;
    
    event Transfer(address indexed from, address indexed to, uint value);
    event Approval(address indexed owner, address indexed spender, uint value);
    
    constructor() {
        balances[msg.sender] = totalSupply;
    }
    
    function balanceOf(address owner) public returns(uint) {
        return balances[owner];
    }
    
    function transfer(address to, uint value) public returns(bool) {
        require(balanceOf(msg.sender) >= value, 'balance too low');
        balances[to] += value;
        balances[msg.sender] -= value;
       emit Transfer(msg.sender, to, value);
        return true;
    }
    
    function transferFrom(address from, address to, uint value) public returns(bool) {
        require(balanceOf(from) >= value, 'balance too low');
        require(allowance[from][msg.sender] >= value, 'allowance too low');
        balances[to] += value;
        balances[from] -= value;
        emit Transfer(from, to, value);
        return true;   
    }
    
    function approve(address spender, uint value) public returns (bool) {
        allowance[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;   
    } 
}

如果你帮助我，谢谢大家！

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