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/**
 *Submitted for verification at Etherscan.io on 2018-11-06
*/

pragma solidity ^0.4.23;
contract Token{
    // token总量，默认会为public变量生成一个getter函数接口，名称为totalSupply().
    uint256 public totalSupply;

    /// 获取账户_owner拥有token的数量 
    function balanceOf(address _owner) constant public returns (uint256 balance);

    //从消息发送者账户中往_to账户转数量为_value的token
    function transfer(address _to, uint256 _value) public returns (bool success);

    //从账户_from中往账户_to转数量为_value的token，与approve方法配合使用
    function transferFrom(address _from, address _to, uint256 _value) public returns   
    (bool success);

    //消息发送账户设置账户_spender能从发送账户中转出数量为_value的token
    function approve(address _spender, uint256 _value) public returns (bool success);

    //获取账户_spender可以从账户_owner中转出token的数量 
    function allowance(address _owner, address _spender) constant public returns 
    (uint256 remaining);

    //发生转账时必须要触发的事件 
    event Transfer(address indexed _from, address indexed _to, uint256 _value);

    //当函数approve(address _spender, uint256 _value)成功执行时必须触发的事件
    event Approval(address indexed _owner, address indexed _spender, uint256 
    _value);
}

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) {
        // assert(b > 0); // Solidity automatically throws when dividing by 0
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold
        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;
    }
}

contract StandardToken is Token {
    using SafeMath for uint256;
    function transfer(address _to, uint256 _value) public returns (bool success) {
        require(_to != address(0));
        require(balances[msg.sender] >= _value);
        balances[msg.sender] = balances[msg.sender].sub(_value);//从消息发送者账户中减去token数量_value
        balances[_to] = balances[_to].add(_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(_to != address(0));
        require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value);
        balances[_to] = balances[_to].add(_value);//接收账户增加token数量_value
        balances[_from] = balances[_from].sub(_value); //支出账户_from减去token数量_value
        allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_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) constant public returns (uint256 balance) {
        return balances[_owner];
    }


    function approve(address _spender, uint256 _value) public returns (bool success)   
    {
        require((_value == 0) || (allowed[msg.sender][_spender] == 0));
        allowed[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }


    function allowance(address _owner, address _spender) constant public 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;
}

contract NiMingToken is StandardToken { 

    /* Public variables of the token */
    string public name;                   //名称: eg Simon Bucks
    uint8 public decimals;               //最多的小数位数，How many decimals to show. ie. There could 1000 base units with 3 decimals. Meaning 0.980 SBX = 980 base units. It's like comparing 1 wei to 1 ether.
    string public symbol;               //token简称: eg SBX
    string public version = 'H0.1';    //版本

    constructor(uint256 _initialAmount, string _tokenName, uint8 _decimalUnits, string _tokenSymbol) public {
        balances[msg.sender] = _initialAmount; // 初始token数量给予消息发送者
        totalSupply = _initialAmount;         // 设置初始总量
        name = _tokenName;                   // token名称
        decimals = _decimalUnits;           // 小数位数
        symbol = _tokenSymbol;             // token简称
    }

    /* Approves and then calls the receiving contract */
    
    function approveAndCall(address _spender, uint256 _value, bytes _extraData) public returns (bool success) {
        require((_value == 0) || (allowed[msg.sender][_spender] == 0));
        allowed[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        //call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn't have to include a contract in here just for this.
        //receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
        //it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
        require(_spender.call(bytes4(bytes32(keccak256("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData));
        return true;
    }

}

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00000000000000000000000000000000000000000000000000012c221cc6a0000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000000653706f7765720000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000453706f7200000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _initialAmount (uint256): 330000000000000
Arg [1] : _tokenName (string): Spower
Arg [2] : _decimalUnits (uint8): 6
Arg [3] : _tokenSymbol (string): Spor

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000012c221cc6a000
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [3] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [5] : 53706f7765720000000000000000000000000000000000000000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [7] : 53706f7200000000000000000000000000000000000000000000000000000000

bzzr://b17ca4b02192fc2576450aa2ba9b65a0a123a44cfd7d6d5d6a17407ecd6d225f