React 路由懒加载最佳实践：在 index.tsx 中使用 BrowserRouter

import React, { Suspense, lazy } from 'react'; import { BrowserRouter as Router, Switch, Route } from 'react-router-dom';

const Home = lazy(() => import('./Home')); const About = lazy(() => import('./About')); const Contact = lazy(() => import('./Contact'));

const App = () => { return ( <Suspense fallback={

export default App;