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（虽然和ERC20高度类似，几乎90%通用）。

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

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。

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

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。

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。

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。

之后按下图点击，就可以广播合约了。

tronlink会跳出来，让你确认签名，确认后给点能量，就完成了。

然后你可以去区块浏览器查看是不是成功了。

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。

点击通证录入

选TRC20，把你发的合约信息填上，此处有个需***的验证码。

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。

4.完事，可以去空投发币。可以上justSwap圈钱了，祝大家发财。