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: 安装Tronlink:部署合约并广播在https://tronscan.io登记发布一下完成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。 —- 编译者/作者:BU联盟 玩币族申明:玩币族作为开放的资讯翻译/分享平台,所提供的所有资讯仅代表作者个人观点,与玩币族平台立场无关,且不构成任何投资理财建议。文章版权归原作者所有。 |
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
2020-08-19 BU联盟 来源:区块链网络
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