import urllib.request

 import urllib.error

 def main():

     askURl("http://movie.douban.com/top250?start")

 #URL的网页内容

 def askURl(url):

     head = {

         "User-Agent": "Mozilla/5.0(Windows NT 10.0;WOW64) AppleWebKit / 537.36(KHTML, likeGecko) Chrome / 80.0.3987.122Safari / 537.36"

     }

     #head伪装一下 告诉机器

     request = urllib.request.Request(url,headers=head)

     html = ""

     try:

         response = urllib.request.urlopen(request)

         html = response.read().decode("utf-8")

         print(html)

     except urllib.error.URLError as e:

         if hasattr(e,"code"):

             print(e.code)

         if hasattr(e,"reason"):

             print(e.reason)

 if __name__ == '__main__':

     #调用函数

     main()