MacOS 安装 solidity

最新推荐文章于 2025-04-10 20:31:41 发布

chen_peng7

最新推荐文章于 2025-04-10 20:31:41 发布

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CC 4.0 BY-SA版权

文章标签： macos

本文链接：https://blog.youkuaiyun.com/chen_peng7/article/details/129640277

本文介绍了如何在Mac环境下使用Homebrew安装Node.js和Solidity，以及如何编译和生成ABI文件。示例提供了一个简单的智能合约代码，展示了如何定义状态变量、修改器和函数。

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安装node

brew install node

安装solc，solc-cli

npm install -g solc
npm install -g solc-cli

安装solidity

brew tap ethereum/ethereum
brew install solidity
brew link --overwrite solidity

写一个简单的合约并保存为demo.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

contract MyContract {
    uint256 public myNumber; // 状态变量

    modifier onlyOwner() { // 修改器
        require(msg.sender == owner, "Only owner can call this function.");
        _;
    }

    address public owner; // 状态变量

    constructor() { // 构造函数
        owner = msg.sender;
        myNumber = 42;
    }

    function setNumber(uint256 _number) public onlyOwner { // 设置状态变量值的函数
        myNumber = _number;
    }
}

生成abi文件

solc --abi demo.sol -o build/

[
    {
        "inputs": [

        ],
        "stateMutability": "nonpayable",
        "type": "constructor"
    },
    {
        "inputs": [

        ],
        "name": "myNumber",
        "outputs": [
            {
                "internalType": "uint256",
                "name": "",
                "type": "uint256"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [

        ],
        "name": "owner",
        "outputs": [
            {
                "internalType": "address",
                "name": "",
                "type": "address"
            }
        ],
        "stateMutability": "view",
        "type": "function"
    },
    {
        "inputs": [
            {
                "internalType": "uint256",
                "name": "_number",
                "type": "uint256"
            }
        ],
        "name": "setNumber",
        "outputs": [

        ],
        "stateMutability": "nonpayable",
        "type": "function"
    }
]