如何使用react-router-dom实现带有副边栏的边栏？

npm install react-router-dom

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

import Sidebar from './Sidebar';
import Home from './Home';
import About from './About';
import Contact from './Contact';

const Layout = () => {
  return (
    <Router>
      <div className="container">
        <Sidebar />
        <div className="content">
          <Route exact path="/" component={Home} />
          <Route path="/about" component={About} />
          <Route path="/contact" component={Contact} />
        </div>
      </div>
    </Router>
  );
};

export default Layout;

import React from 'react';
import { Link } from 'react-router-dom';

const Sidebar = () => {
  return (
    <div className="sidebar">
      <ul>
        <li>
          <Link to="/">Home</Link>
        </li>
        <li>
          <Link to="/about">About</Link>
        </li>
        <li>
          <Link to="/contact">Contact</Link>
        </li>
      </ul>
    </div>
  );
};

export default Sidebar;

import React from 'react';

const Home = () => {
  return <h1>Home Page</h1>;
};

export default Home;

// About.js
import React from 'react';

const About = () => {
  return <h1>About Page</h1>;
};

export default About;

// Contact.js
import React from 'react';

const Contact = () => {
  return <h1>Contact Page</h1>;
};

export default Contact;

import React from 'react';
import Layout from './Layout';

const App = () => {
  return <Layout />;
};

export default App;