我第一次嘗試React-Router，并嘗試編寫一些代碼，但鏈接似乎不起作用。這些是我的鏈接。起初，當(dāng)我將鏈接放入應(yīng)用程序組件中時，鏈接起作用了。然后我嘗試將導(dǎo)航放入它自己的組件中，然后鏈接不起作用。感謝您的幫助！import React from "react";import About from "./About";import Home from "./Home";import Navigation from "./Navigation";import { BrowserRouter as Router, Switch, Route } from "react-router-dom";export default function App() {  return (    <Router>      <div>        <Navigation />        <Switch>          <Route path="/about">            <About />          </Route>          <Route path="/" exact>            <Home />          </Route>        </Switch>      </div>    </Router>  );}import React from "react";import { BrowserRouter as Link } from "react-router-dom";export default function Navigation() {  return (    <nav>      <ul>        <li>          <Link to="/">Home</Link>        </li>        <li>          <Link to="/about">About</Link>        </li>      </ul>    </nav>  );}