python3网络爬虫：爬虫正则表达式下载图片（六）

      import urllib.request
      import re
      def open_url(url):
          req = urllib.request.Request(url)
          req.add_header('User-Agent','Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36')
          page = urllib.request.urlopen(req)
          html = page.read().decode('utf-8')
         #print(html)
         return html
      def get_img(html):
          p = r'<img class="BDE_Image" src="([^"]+\.jpg)"'    #正则匹配图片url的路径，https://imgsa.baidu.com/forum/w%3D580/sign=aa042893d558ccbf1bbcb53229d9bcd4/82e96d600c338744f222ae5d550fd9f9d62aa07d.jpg
          imglist = re.findall(p,html)
         print(imglist)
         # for each in imglist: #遍历出所有的图片完整的链接
         # print(each)
         for each in imglist:
              filename = each.split("/")[-1]
              urllib.request.urlretrieve(each,filename,None)  # urlretrieve(each,filename,None) 下载图片
      if __name__=='__main__':
          url = "https://tieba.baidu.com/p/3563409202?red_tag=3526577411"
          get_img(open_url(url))
         #open_url(url)
  
 

文章来源: brucelong.blog.csdn.net，作者：Bruce小鬼，版权归原作者所有，如需转载，请联系作者。

原文链接：brucelong.blog.csdn.net/article/details/80505041