Recognize and use React Scaffolding to create React projects
1. Use create-react-app to initialize React scaffolding
1. Introduction to react scaffolding
1. The role is to help programmers quickly build template projects
2. React provides a scaffolding library for creating react projects: create-react-app
3. The overall technical architecture of the project is react+webpack+es6+eslint
4. Features: Modularization, componentization, engineering
2. Create a project and start
npm install the repository globally: npm i -g create-react-app
Use the create-react-app command to create a new project: create-react-app hello-react Go
to the project folder: cd hello-react
Start the project: npm start
3. File directory description
2. Simplify project documents
（1）删除public和src文件夹里的内容
（2）在public中新建index.html文件
<!--index.html-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<!-- %PUBLIC_URL%表示public文件夹的路径 -->
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<!-- 开启理想视口，用于做移动端网页的适配 -->
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>React App</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
</body>
</html>
（3）安装vscode扩展：ES7+ React/Redux/React-Native snippets
（4）在src文件夹下新建App.jsx或者App.js文件，输入快捷命令：rcc
//App.js
//输入rcc 或者rfc ，快捷生成函数式或类式组件
import React, {
Component } from 'react';
export default class APP extends Component {
render() {
return <div>Hello React</div>;
}
}
（5）在src文件夹下新建index.js文件
//index.js
import React from "react";
import ReactDOM from "react-dom";
import App from "./App";
ReactDOM.render(
<App />,
document.getElementById('root')
);
（6）在终端使用npm start运行
The above is the content of using React scaffolding to create a React project. Please pay attention to the " React Family Bucket " column.
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