如何在React中从侧边栏单击后路由到页面？

npm install react-router-dom

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

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

function Home() {
  return <h2>Home</h2>;
}

function About() {
  return <h2>About</h2>;
}

function Contact() {
  return <h2>Contact</h2>;
}

function App() {
  return (
    <Router>
      <div>
        <Sidebar />
        <Route path="/home" component={Home} />
        <Route path="/about" component={About} />
        <Route path="/contact" component={Contact} />
      </div>
    </Router>
  );
}

ReactDOM.render(<App />, document.getElementById('root'));