Reactjs:无法读取null的URL属性，正在从API获取

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

const MyComponent = () => {
  const [data, setData] = useState(null);

  useEffect(() => {
    fetchData();
  }, []);

  const fetchData = async () => {
    try {
      const response = await fetch('API_URL');
      const jsonData = await response.json();
      setData(jsonData);
    } catch (error) {
      console.error('Error fetching data:', error);
    }
  };

  if (data === null) {
    return <div>Loading...</div>;
  }

  return (
    <div>
      {/* 在使用URL属性之前进行判断 */}
      {data.url && <img src={data.url} alt="Image" />}
    </div>
  );
};

export default MyComponent;