text: import React from 'react';
  import {
    HashRouter,
    Route,
    Switch
  } from 'react-router-dom';
  import Singer from './container/singer';
  import City from './container/city';
  import Home from './container/home';
  
  const App = () => {
    return (
      <HashRouter>
        <Switch>
          <Route path="/" exact component={Home} />
          <Route path="/singer" component={Singer} />
          <Route path="/city" component={City} />
        </Switch>
      </HashRouter>
    );
  }
  
  export default App;
  