如何在使用连接的react -router时防止react页面重新渲染

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

const Home = React.memo(() => {
  return <h1>Home</h1>;
});

const About = React.memo(() => {
  return <h1>About</h1>;
});

const App = () => {
  return (
    <Router>
      <ul>
        <li>
          <Link to="/">Home</Link>
        </li>
        <li>
          <Link to="/about">About</Link>
        </li>
      </ul>

      <Route path="/" exact component={Home} />
      <Route path="/about" exact component={About} />
    </Router>
  );
};

export default App;

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

const Home = () => {
  const handleClick = useCallback(() => {
    console.log('Home clicked');
  }, []);

  return (
    <div>
      <h1>Home</h1>
      <button onClick={handleClick}>Click me</button>
    </div>
  );
};

const About = () => {
  const handleClick = useCallback(() => {
    console.log('About clicked');
  }, []);

  return (
    <div>
      <h1>About</h1>
      <button onClick={handleClick}>Click me</button>
    </div>
  );
};

const App = () => {
  return (
    <Router>
      <ul>
        <li>
          <Link to="/">Home</Link>
        </li>
        <li>
          <Link to="/about">About</Link>
        </li>
      </ul>

      <Route path="/" exact component={Home} />
      <Route path="/about" exact component={About} />
    </Router>
  );
};

export default App;