先将nodejs的版本切换到18:
接着,创建项目:
npx create-react-app frontend
接着,使用webstorm打开这个刚创建的项目:
添加一个npm run start的配置:
通过start启动服务:
浏览器访问:http://localhost:3000/
安装bootstrap
执行命令安装:
yarn add react-bootstrap bootstrap
安装react-router
这里我们安装5版本:
yarn add react-router-dom@5
整理依赖
修改 package.json ,移除不必要的依赖:
{"name": "frontend","version": "0.1.0","private": true,"dependencies": {"bootstrap": "^5.3.3","react": "^18.3.1","react-bootstrap": "^2.10.2","react-dom": "^18.3.1","react-router-dom": "5","react-scripts": "5.0.1","web-vitals": "^2.1.4"},"scripts": {"start": "react-scripts start","build": "react-scripts build"},"browserslist": {"production": [">0.2%","not dead","not op_mini all"],"development": ["last 1 chrome version","last 1 firefox version","last 1 safari version"]}
}
之后执行命令更新依赖:
yarn
优化代码
删除不必要的文件,将App.js修改如下:
function App() {return (<div className="App">你好,React18</div>);
}export default App;
index.js也需要修改:
import React from 'react';
import ReactDOM from 'react-dom/client';
import App from './App';
import reportWebVitals from './reportWebVitals';const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(<React.StrictMode><App/></React.StrictMode>
);
reportWebVitals();
此时,再次访问:http://localhost:3000/