Token

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

 contract Token    - function balanceOf(address _owner)    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract TokenMoyu is Token *    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function balanceOf(address _owner)    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2020-09-28
*/

pragma solidity ^0.4.16;
contract Token{
    uint256 public totalSupply;

    function balanceOf(address _owner) public constant returns (uint256 balance);
    function transfer(address _to, uint256 _value) public returns (bool success);
    function transferFrom(address _from, address _to, uint256 _value) public returns   
    (bool success);
    
    function approve(address _spender, uint256 _value) public returns (bool success);
    
    function allowance(address _owner, address _spender) public constant returns (uint256 remaining);

    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}

contract TokenMoyu is Token {
    
    string public name;                   //名称，例如"My test token"
    uint8 public decimals;               //返回token使用的小数点后几位。比如如果设置为3，就是支持0.001表示.
    string public symbol;               //token简称,like MTT
    
    constructor(uint256 _initialAmount, uint8 _decimalUnits, string _tokenName, string _tokenSymbol)  public {
        totalSupply = _initialAmount * 10 ** uint256(_decimalUnits);         // 设置初始总量
        balances[msg.sender] = totalSupply; // 初始token数量给予消息发送者，因为是构造函数，所以这里也是合约的创建者
        
        name = _tokenName;                   
        decimals = _decimalUnits;          
        symbol = _tokenSymbol;
    }
    
    function transfer(address _to, uint256 _value) public returns (bool success) {
        //默认totalSupply 不会超过最大值 (2^256 - 1).
        //如果随着时间的推移将会有新的token生成，则可以用下面这句避免溢出的异常
        require(balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]);
        require(_to != 0x0);
        balances[msg.sender] -= _value;//从消息发送者账户中减去token数量_value
        balances[_to] += _value;//往接收账户增加token数量_value
        emit Transfer(msg.sender, _to, _value);//触发转币交易事件
        return true;
    }


    function transferFrom(address _from, address _to, uint256 _value) public returns 
    (bool success) {
        require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value);
        balances[_to] += _value;//接收账户增加token数量_value
        balances[_from] -= _value; //支出账户_from减去token数量_value
        allowed[_from][msg.sender] -= _value;//消息发送者可以从账户_from中转出的数量减少_value
        emit Transfer(_from, _to, _value);//触发转币交易事件
        return true;
    }
    function balanceOf(address _owner) public constant returns (uint256 balance) {
        return balances[_owner];
    }


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

    function allowance(address _owner, address _spender) public constant returns (uint256 remaining) {
        return allowed[_owner][_spender];//允许_spender从_owner中转出的token数
    }
    mapping (address => uint256) balances;
    mapping (address => mapping (address => uint256)) allowed;
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"success","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"_initialAmount","type":"uint256"},{"name":"_decimalUnits","type":"uint8"},{"name":"_tokenName","type":"string"},{"name":"_tokenSymbol","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_owner","type":"address"},{"indexed":true,"name":"_spender","type":"address"},{"indexed":false,"name":"_value","type":"uint256"}],"name":"Approval","type":"event"}]

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

731:2710:0:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;772:18;;8:9:-1;5:2;;;30:1;27;20:12;5:2;772:18:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;8:100:-1;33:3;30:1;27:10;8:100;;;90:11;;;84:18;71:11;;;64:39;52:2;45:10;8:100;;;12:14;772:18:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2906:223;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;2906:223:0;-1:-1:-1;;;;;2906:223:0;;;;;;;;;;;;;;;;;;;;;;;;;47:26;;8:9:-1;5:2;;;30:1;27;20:12;5:2;47:26:0;;;;;;;;;;;;;;;;;;;;2220:551;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;2220:551:0;-1:-1:-1;;;;;2220:551:0;;;;;;;;;;;;848:21;;8:9:-1;5:2;;;30:1;27;20:12;5:2;848:21:0;;;;;;;;;;;;;;;;;;;;;;;2777:119;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;2777:119:0;-1:-1:-1;;;;;2777:119:0;;;;;983:20;;8:9:-1;5:2;;;30:1;27;20:12;5:2;983:20:0;;;;1562:648;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;1562:648:0;-1:-1:-1;;;;;1562:648:0;;;;;;;3137:193;;8:9:-1;5:2;;;30:1;27;20:12;5:2;-1:-1;3137:193:0;-1:-1:-1;;;;;3137:193:0;;;;;;;;;;772:18;;;;;;;;;;;;;;;-1:-1:-1;;772:18:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::o;2906:223::-;3015:10;2973:12;3007:19;;;:7;:19;;;;;;;;-1:-1:-1;;;;;3007:29:0;;;;;;;;;;;:38;;;3061;;;;;;;2973:12;;3007:29;;3015:10;;3061:38;;;;;;;;-1:-1:-1;3117:4:0;2906:223;;;;:::o;47:26::-;;;;:::o;2220:551::-;-1:-1:-1;;;;;2341:15:0;;2308:12;2341:15;;;:8;:15;;;;;;:25;-1:-1:-1;2341:25:0;;;:65;;-1:-1:-1;;;;;;2370:14:0;;;;;;:7;:14;;;;;;;;2385:10;2370:26;;;;;;;;:36;-1:-1:-1;2370:36:0;2341:65;2333:74;;;;;;;;-1:-1:-1;;;;;2418:13:0;;;;;;;:8;:13;;;;;;;;:23;;;;;;2489:15;;;;;;;;;:25;;;;;;;2568:7;:14;;;;;2583:10;2568:26;;;;;;;;:36;;;;;;;2687:28;;;;;;;2418:13;;2489:15;;2687:28;;;;;;;;;;-1:-1:-1;2759:4:0;2220:551;;;;;:::o;848:21::-;;;;;;:::o;2777:119::-;-1:-1:-1;;;;;2872:16:0;2837:15;2872:16;;;:8;:16;;;;;;;2777:119::o;983:20::-;;;;;;;;;;;;;;;-1:-1:-1;;983:20:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1562:648;1844:10;1625:12;1835:20;;;:8;:20;;;;;;:30;-1:-1:-1;1835:30:0;;;:72;;-1:-1:-1;;;;;;1894:13:0;;;;;;:8;:13;;;;;;1869:22;;;:38;1835:72;1827:81;;;;;;;;-1:-1:-1;;;;;1927:10:0;;;;1919:19;;;;;;1958:10;1949:20;;;;:8;:20;;;;;;;;:30;;;;;;;-1:-1:-1;;;;;2042:13:0;;;;;;;;;:23;;;;;;2121:33;;;;;;;2042:13;;1958:10;2121:33;;;;;;;;;;;-1:-1:-1;2198:4:0;1562:648;;;;:::o;3137:193::-;-1:-1:-1;;;;;3252:15:0;;;3215:17;3252:15;;;:7;:15;;;;;;;;:25;;;;;;;;;;;;;3137:193::o

bzzr://5a85e45b09d90d6e428acb5a42f53cfd126ceec2811fd768c53b0a249404f9aa