如何解决React useEffect清理错误问题

import React, { useState, useEffect } from 'react';

function ExampleComponent() {
  const [data, setData] = useState(null);

  useEffect(() => {
    let isMounted = true;

    // 模拟异步操作
    setTimeout(() => {
      if (isMounted) {
        setData('Hello, World!');
      }
    }, 2000);

    // 返回清理函数
    return () => {
      isMounted = false;
    };
  }, []);

  return (
    <div>
      {data ? <p>{data}</p> : <p>Loading...</p>}
    </div>
  );
}

export default ExampleComponent;