如何防止react-router将#添加到url？

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

ReactDOM.render(
  <Router>
    <Route path="/" component={App} />
  </Router>,
  document.getElementById('root')
);

import { HashRouter, Route } from 'react-router-dom';

ReactDOM.render(
  <HashRouter hashType="noslash">
    <Route path="/" component={App} />
  </HashRouter>,
  document.getElementById('root')
);

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

ReactDOM.render(
  <Router basename="/my-app">
    <Route path="/" component={App} />
  </Router>,
  document.getElementById('root')
);