第7关：图片链接提取 ⭐⭐

💡 提示

提取图片链接：

images = soup.find_all('img', class_='animal-img')
for img in images:
    img_url = img['src']
    alt_text = img.get('alt', '')
    print(f'{alt_text}: {img_url}')

下载图片（进阶）：

import requests

img_data = requests.get(img_url).content
with open('animal.jpg', 'wb') as f:
    f.write(img_data)