import React, { useState } from 'react';

function ButtonComponent() {
  const [isClicked, setIsClicked] = useState(false);

  const handleClick = () => {
    setIsClicked(true);
  };

  return (
    <button onClick={handleClick}>点击我</button>
  );
}

export default ButtonComponent;

import React from 'react';

function DivComponent() {
  return (
    <div>
      {isClicked && <div>被按钮链接的div</div>}
    </div>
  );
}

export default DivComponent;

import React from 'react';
import ButtonComponent from './ButtonComponent';
import DivComponent from './DivComponent';

function App() {
  return (
    <div>
      <ButtonComponent />
      <DivComponent />
    </div>
  );
}

export default App;