将react-router路由分解到自己的文件中

// routes.js

import React from 'react';
import { Route, Switch } from 'react-router-dom';
import Home from './components/Home';
import About from './components/About';
import Contact from './components/Contact';

const Routes = () => {
  return (
    <Switch>
      <Route exact path="/" component={Home} />
      <Route path="/about" component={About} />
      <Route path="/contact" component={Contact} />
    </Switch>
  );
};

export default Routes;

// App.js

import React from 'react';
import { BrowserRouter as Router } from 'react-router-dom';
import Routes from './routes';

const App = () => {
  return (
    <Router>
      <div>
        {/* 其他应用组件 */}
        <Routes />
      </div>
    </Router>
  );
};

export default App;