python抓取指定页数网页图片代码

在Python中，我们可以使用BeautifulSoup库来解析HTML，PIL库来处理图像，以及requests库来发送HTTP请求。以下是一个简单的示例，展示如何抓取指定页数的网页图片：

import requests
from bs4 import BeautifulSoup
import os

def get_images(url, page_num, save_dir):
    # 请求指定页面
    response = requests.get(url + f'?page={page_num}')
    
    # 使用BeautifulSoup解析HTML
    soup = BeautifulSoup(response.text, 'html.parser')
    
    # 查找所有的img标签
    img_tags = soup.find_all('img', src=True)
    
    for img_tag in img_tags:
        try:
            # 获取图片URL
            img_url = img_tag['src']
            
            # 拼接完整的图片地址
            full_img_url = url + img_url
            
            # 下载图片并保存到指定目录
            response = requests.get(full_img_url, stream=True)
            filename = os.path.join(save_dir, img_url.split('/')[-1])
            with open(filename, 'wb') as f:
                for chunk in response.iter_content(1024):
                    f.write(chunk)
                
            print(f'Saved image {filename}')
        except Exception as e:
            print(f'Error processing image: {e}')

# 设置目标网站、页面范围和保存路径
base_url = 'https://example.com'
start_page = 1
end_page = 5
save_directory = './images'

for i in range(start_page, end_page + 1):
    get_images(base_url, i, save_directory)