document.addEventListener('DOMContentLoaded', function() {
    const images = document.querySelectorAll('img[loading="lazy"]');
    
    images.forEach((img, index) => {
      console.log(`Image ${index + 1} is set to lazy-load.`); // 打印设置为懒加载的图片信息
  
      img.addEventListener('load', function() {
        console.log(`Image ${index + 1} has been loaded.`); // 打印图片加载完成的信息
      });
  
      img.addEventListener('error', function() {
        console.error(`Image ${index + 1} failed to load.`); // 打印图片加载失败的信息
      });
    });
  });