react本机中promise中的条件呈现

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

const MyComponent = () => {
  const [isLoading, setIsLoading] = useState(true);
  const [data, setData] = useState(null);
  const [error, setError] = useState(null);

  useEffect(() => {
    // 模拟异步操作
    const fetchData = async () => {
      try {
        const response = await fetch('https://api.example.com/data');
        const json = await response.json();
        setData(json);
        setIsLoading(false);
      } catch (error) {
        setError(error);
        setIsLoading(false);
      }
    };

    fetchData();
  }, []);

  if (isLoading) {
    return <div>Loading...</div>;
  }

  if (error) {
    return <div>Error: {error.message}</div>;
  }

  return (
    <div>
      {/* 根据数据来渲染不同的内容 */}
      {data && (
        <div>
          <h1>{data.title}</h1>
          <p>{data.description}</p>
        </div>
      )}
    </div>
  );
};

export default MyComponent;