什么是Arbitrum?Arbitrum是以太坊的一个领先的Layer2扩展解决方案,由OffchainLabs开发。它采用OptimisticRollup技术,通过在链下处理交易并定期将交易数据提交到以太坊主网来显著提高交易吞吐量并降低gas费用,同时保持了以太坊主网级别的安全性。AR
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Arbitrum是以太坊的一个领先的Layer 2扩展解决方案,由Offchain Labs开发。它采用Optimistic Rollup技术,通过在链下处理交易并定期将交易数据提交到以太坊主网来显著提高交易吞吐量并降低gas费用,同时保持了以太坊主网级别的安全性。
ARB是Arbitrum生态的治理代币,持有者可以参与协议决策。自2023年3月发行以来,ARB价格经历了市场波动,反映了Layer 2领域的竞争和整个加密货币市场的趋势。
1.访问Remix:打开https\://remix.ethereum.org
2.创建新文件:在contracts文件夹下新建Token.sol
3.编写合约:粘贴标准ERC-20合约代码,例如:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
contract MyToken is ERC20 {
constructor(uint256 initialSupply) ERC20("MyToken", "MTK") {
_mint(msg.sender, initialSupply);
}
}
4.编译合约:
5.部署准备:
1.项目初始化:
mkdir my-arbitrum-token
cd my-arbitrum-token
npm init -y
npm install --save-dev hardhat
npx hardhat
选择"Create a basic sample project"
2.安装依赖:
npm install @openzeppelin/contracts @nomiclabs/hardhat-ethers ethers
npm install dotenv --save
3.配置hardhat.config.js:
require("@nomiclabs/hardhat-ethers");
require('dotenv').config();
module.exports = {
solidity: "0.8.4",
networks: {
arbitrum: {
url: process.env.ARBITRUM_RPC_URL,
accounts: [process.env.PRIVATE_KEY]
},
arbitrum_testnet: {
url: process.env.ARBITRUM_TESTNET_RPC_URL,
accounts: [process.env.PRIVATE_KEY]
}
}
};
4.创建.env文件:
ARBITRUM_RPC_URL=https://arb1.arbitrum.io/rpc
ARBITRUM_TESTNET_RPC_URL=https://goerli-rollup.arbitrum.io/rpc
PRIVATE_KEY=你的私钥
5.编写合约: 在contracts/目录下创建MyToken.sol,内容与方法一类似
6.编写部署脚本: 在scripts/下创建deploy.js:
async function main() {
const [deployer] = await ethers.getSigners();
console.log("Deploying contracts with the account:", deployer.address);
const MyToken = await ethers.getContractFactory("MyToken");
const token = await MyToken.deploy(ethers.utils.parseUnits("1000000", 18));
await token.deployed();
console.log("Token deployed to:", token.address);
}
main()
.then(() => process.exit(0))
.catch((error) => {
console.error(error);
process.exit(1);
});
7.部署到Arbitrum测试网:
npx hardhat run scripts/deploy.js --network arbitrum_testnet
8.验证合约(可选): 安装插件并配置:
npm install --save-dev @nomiclabs/hardhat-etherscan
在hardhat.config.js中添加:
require("@nomiclabs/hardhat-etherscan");
module.exports = {
// ...其他配置
etherscan: {
apiKey: {
arbitrumOne: process.env.ARBISCAN_API_KEY,
arbitrumTestnet: process.env.ARBISCAN_API_KEY
}
}
};
然后运行:
npx hardhat verify --network arbitrum_testnet <合约地址> "1000000000000000000000000"
1.添加代币权限管理:
import "@openzeppelin/contracts/access/Ownable.sol";
contract MyToken is ERC20, Ownable {
constructor(uint256 initialSupply) ERC20("MyToken", "MTK") {
_mint(msg.sender, initialSupply);
}
function mint(address to, uint256 amount) public onlyOwner {
_mint(to, amount);
}
}
2.实现交易税费:
uint256 public taxRate = 5; // 5%
address public treasury;
function _transfer(address sender, address recipient, uint256 amount) internal override {
if (sender == address(0) || recipient == address(0) || sender == treasury) {
super._transfer(sender, recipient, amount);
} else {
uint256 tax = amount * taxRate / 100;
uint256 netAmount = amount - tax;
super._transfer(sender, treasury, tax);
super._transfer(sender, recipient, netAmount);
}
}
通过本指南,您应该已经全面了解了在Arbitrum上创建代币的各种方法和详细步骤。无论您是初学者还是有经验的开发者,都可以选择适合自己的路径来启动您的Arbitrum代币项目。记住,技术实现只是第一步,代币的成功还取决于其实际用途、社区支持和持续发展。
如有不明白或者不清楚的地方,请加入官方电报群:<https://t.me/gtokentool>
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