for循环创建Image()，但获取宽度和高度失败

function loadImage(url) {
  return new Promise((resolve, reject) => {
    const img = new Image();
    img.onload = function() {
      resolve(img);
    };
    img.onerror = function() {
      reject(new Error('Failed to load image'));
    };
    img.src = url;
  });
}

async function getImageSize(url) {
  try {
    const img = await loadImage(url);
    const width = img.width;
    const height = img.height;
    console.log('Width:', width);
    console.log('Height:', height);
  } catch (error) {
    console.error(error);
  }
}

// 使用示例
for (let i = 0; i < 10; i++) {
  const imageUrl = `https://example.com/image${i}.jpg`;
  getImageSize(imageUrl);
}