如何使用React Router在嵌套路由中进行重定向

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

const Home = () => <h1>Home</h1>;
const About = () => <h1>About</h1>;
const Dashboard = () => <h1>Dashboard</h1>;
const NotFound = () => <h1>404 Not Found</h1>;

const AdminDashboard = () => <h1>Admin Dashboard</h1>;
const UserDashboard = () => <h1>User Dashboard</h1>;

const App = () => {
  const isAdmin = true; // 假设这是一个判断用户是否为管理员的逻辑

  return (
    <Router>
      <Switch>
        <Route exact path="/" component={Home} />
        <Route path="/about" component={About} />
        <Route path="/dashboard">
          <Switch>
            {isAdmin ? (
              <Route path="/dashboard" component={AdminDashboard} />
            ) : (
              <Route path="/dashboard" component={UserDashboard} />
            )}
            <Redirect to="/dashboard/user" />
          </Switch>
        </Route>
        <Route component={NotFound} />
      </Switch>
    </Router>
  );
};

export default App;