justSwap开盘咯,你也想发个币去当庄家?手把手教你怎么用TRC20标准在tron发币

2021-03-14 09:38:48  [ 以太坊 ]      留言:0      阅读:15

来源:https://steemd.com/hive-180932/@maiyude/justswap-trc20-tron


justSwap开盘咯,你也想发个币去当庄家?手把手教你怎么用TRC20标准在tron发币 by maiyude

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hive-180932 · @maiyude ·Aug 18 '20
$42.65
justSwap开盘咯,你也想发个币去当庄家?手把手教你怎么用TRC20标准在tron发币
文:卖鱼的



tron发币很简单,而且比ETH和EOS更便宜,转账空投又便宜又快捷。

再加上可以直接在justSwap上币交易,实在是简单方便快捷的东西。



不过TRC20发币的教程比较少,这里写一个。



### 主要步骤:


- 1 安装Tronlink:
- 2 部署合约并广播
- 3 在https://tronscan.io登记发布一下
- 4 完成


#### 1.安装tronlink
(https://chrome.google.com/webstore/detail/tronlink/ibnejdfjmmkpcnlpebklmnkoeoihofec)
这是一个google插件,tron钱包来的。安装完毕创建新钱包或者导入私钥



![image.png](https://cdn.steemitimages.com/DQmbWFzW5qnwziHvaw4d9bwDSBecE3FEJWJhG97DrXySz2u/image.png)



#### 2.部署合约
首先检查一下你有没能量,部署合约需要能量。

没有能量就去抵押一点TRX或者租一点。价格很便宜,也就几块钱人民币的事情。


![image.png](https://cdn.steemitimages.com/DQmNUGo1KEUYeYy8UtKNwuhvm6ejGnDsUGpjJMcPcyxHJZR/image.png)


我这里租了10万能量就成功发了好几个合约了。




首先打开tron-ide。你喜欢自己部署环境也可以自己动手。

http://www.tronide.io/#ideVersion=v0.4.5&optimize=false&version=soljson-v0.4.25+commit.69a1e72.js 

![image.png](https://cdn.steemitimages.com/DQmfRKULVD8cLKVqciNhkNdqtab6Q5AuDNgpXexeyC6b5VW/image.png)

 

新建一个文件,打代码,这里有个简单的示例合约,只要改下面的币名和数量就完事了。


![image.png](https://cdn.steemitimages.com/DQmYiCZD4sW1vPTwigTsRDKqHCEPErLt8XjiJqMjL7MixqL/image.png)



```

pragma solidity >=0.4.23 <0.6.0;


contract CARE_TRC20 {
    // Public variables of the token
    string public name;
    string public symbol;
    uint8 public decimals = 8;
    uint256 precision = 100000000;
    address private ownerAddr;
    address private adminAddr;
    uint256 public totalSupply;

    // This creates an array with all balances
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;

    // This generates a public event on the blockchain that will notify clients
    event Transfer(address indexed from, address indexed to, uint256 value);

    // This generates a public event on the blockchain that will notify clients
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);

    // This notifies clients about the amount burnt
    event Burn(address indexed from, uint256 value);

    /**
     * Constructor function
     *
     * Initializes contract with initial supply tokens to the creator of the contract
     */
    uint256 initialSupply = 1000000000000;
    string tokenName = 'YOUR TOKEN';
    string tokenSymbol = 'YOUR';
    constructor() public {
        ownerAddr = msg.sender;
        totalSupply = initialSupply * 10 ** uint256(decimals);  // Update total supply with the decimal amount
        balanceOf[msg.sender] = totalSupply;                // Give the creator all initial tokens
        name = tokenName;                                // Set the name for display purposes
        symbol = tokenSymbol;                               // Set the symbol for display purposes
    }

    modifier isOwner() {
        require(msg.sender == ownerAddr);
        _;
    }

    modifier isAdmin() {
        require(msg.sender == adminAddr);
        _;
    }

    function setAdmin(address _newAdmin) external isOwner {
        require(_newAdmin != address(0));
        adminAddr = _newAdmin;
    }

    /**
     * Internal transfer, only can be called by this contract
     */
    function _transfer(address _from, address _to, uint _value) internal {
        // Prevent transfer to 0x0 address. Use burn() instead
        require(_to != address(0));
        // Check if the sender has enough
        require(balanceOf[_from] >= _value);
        // Check for overflows
        require(balanceOf[_to] + _value >= balanceOf[_to]);
        // Save this for an assertion in the future
        uint previousBalances = balanceOf[_from] + balanceOf[_to];
        // Subtract from the sender
        balanceOf[_from] -= _value;
        // Add the same to the recipient
        balanceOf[_to] += _value;
        emit Transfer(_from, _to, _value);
        // Asserts are used to use static analysis to find bugs in your code. They should never fail
        require(balanceOf[_from] + balanceOf[_to] == previousBalances);
    }

    /**
     * Transfer tokens
     *
     * Send `_value` tokens to `_to` from your account
     *
     * @param _to The address of the recipient
     * @param _value the amount to send
     */
    function deduct(address _to, uint256 _value) external isAdmin returns (bool success) {
        _transfer(ownerAddr, _to, _value * precision);
        return true;
    }

    function transfer(address _to, uint256 _value) external returns (bool success) {
        _transfer(msg.sender, _to, _value);
        return true;
    }

    /**
     * Transfer tokens from other address
     *
     * Send `_value` tokens to `_to` on behalf of `_from`
     *
     * @param _from The address of the sender
     * @param _to The address of the recipient
     * @param _value the amount to send
     */
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        require(_value <= allowance[_from][msg.sender]);     // Check allowance
        allowance[_from][msg.sender] -= _value;
        _transfer(_from, _to, _value);
        return true;
    }

    /**
     * Set allowance for other address
     *
     * Allows `_spender` to spend no more than `_value` tokens on your behalf
     *
     * @param _spender The address authorized to spend
     * @param _value the max amount they can spend
     */
    function approve(address _spender, uint256 _value) public
    returns (bool success) {
        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    /**
     * Destroy tokens
     *
     * Remove `_value` tokens from the system irreversibly
     *
     * @param _value the amount of money to burn
     */
    function burn(uint256 _value) public returns (bool success) {
        require(balanceOf[msg.sender] >= _value);   // Check if the sender has enough
        balanceOf[msg.sender] -= _value;            // Subtract from the sender
        totalSupply -= _value;                      // Updates totalSupply
        emit Burn(msg.sender, _value);
        return true;
    }

    /**
     * Destroy tokens from other account
     *
     * Remove `_value` tokens from the system irreversibly on behalf of `_from`.
     *
     * @param _from the address of the sender
     * @param _value the amount of money to burn
     */
    function burnFrom(address _from, uint256 _value) public returns (bool success) {
        require(balanceOf[_from] >= _value);                // Check if the targeted balance is enough
        require(_value <= allowance[_from][msg.sender]);    // Check allowance
        balanceOf[_from] -= _value;                         // Subtract from the targeted balance
        allowance[_from][msg.sender] -= _value;             // Subtract from the sender's allowance
        totalSupply -= _value;                              // Update totalSupply
        emit Burn(_from, _value);
        return true;
    }
}  

```


复制上面代码弄上去就好。



接下来编译一下代码。


![image.png](https://cdn.steemitimages.com/DQmbbfedV6xsmggSatBnPdpZ5hgzCiha1VrkT5CXrVS8m2Y/image.png)


首先点插件这里,激活一下部署和广播用的插件。

激活完毕多了几个图标,按照下图点。成功编译的话没啥错误就进行下一步。


![image.png](https://cdn.steemitimages.com/DQmSiyp4QT1eA4qndNs4qWLZwtv56uZso3VY8t7FhMqhCei/image.png)



之后按下图点击,就可以广播合约了。


![image.png](https://cdn.steemitimages.com/DQmdqPfNXtozUAHPCufgcAMbD8mjgcqoMsbC5ujRDnGowsY/image.png)


tronlink会跳出来,让你确认签名,确认后给点能量,就完成了。



![image.png](https://cdn.steemitimages.com/DQmdp3HVZ16PK6snptQs8CYmSk8EBh2q2iELXxkFdd4HeF4/image.png)



然后你可以去区块浏览器查看是不是成功了。



![image.png](https://cdn.steemitimages.com/DQmdBYRNqhKURSa8VG51GXkZDCBBNe6fRsZEci9J8vwPiZ7/image.png)



3.在https://tronscan.io登记发布一下


弄完了,但是没有币,很奇怪?

这时候在钱包按照合约地址添加资产就有了。



不过最好去tronscan登记发布一下。




![image.png](https://cdn.steemitimages.com/DQmRPhHkGNsWPbRzh4ZE2vRxyJ3TBDLFmQ1xSkrQkPgaWTM/image.png)



点击通证录入,选TRC20,把你发的合约信息填上,此处有个需翻墙的验证码。



![image.png](https://cdn.steemitimages.com/DQmfXd9ufZwmHLMNnWfmdGQ3ruzBYJDp89ktkvVKGoQC9XA/image.png)



提交了,你的币就很能很好的查询到了,也可以上传币的LOGO啥的。





来源:https://steemd.com/hive-180932/@maiyude/justswap-trc20-tron


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