如何在react路由器v4中使用BrowserRouter而不是HashRouter

npm install react-router-dom

import React from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter } from 'react-router-dom';
import App from './App';

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

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

const App = () => {
  return (
    <div>
      <Route exact path="/" component={Home} />
      <Route path="/about" component={About} />
    </div>
  );
}

export default App;