python获取网页源代码

            
               1
            
            
              import
            
            
               requests

            
            
               2
            
            
              def
            
            
               getHTML(url):

            
            
               3
            
            
              try
            
            
              :

            
            
               4
            
                     r = requests.get(url,timeout=30
            
              )

            
            
               5
            
            
                      r.raise_for_status()

            
            
               6
            
                     r.encoding = 
            
              '
            
            
              utf-8
            
            
              '
            
            
               7
            
            
              return
            
            
               r.text

            
            
               8
            
            
              except
            
            
              :

            
            
               9
            
            
              return
            
            
              ""
            
            
              10
            
             url = 
            
              "
            
            
              http://baidu.com
            
            
              "
            
            
              11
            
            
              print
            
            (getHTML(url))