首先来设置一个原始的字符串，

Python 3.2.3 (default, Apr 11 2012, 07:15:24) [MSC v.1500 32 bit (Intel)] on win32Type "help", "copyright", "credits" or "license" for more information.>>> website = 'http://www.cnblogs.com/txw1958/'>>> type(website)
     
      >>> website'http://www.cnblogs.com/txw1958/'>>>
     

 

按utf-8的方式编码，转成bytes

>>> website_bytes_utf8 = website.encode(encoding="utf-8")>>> type(website_bytes_utf8)
     
      >>> website_bytes_utf8b'http://www.cnblogs.com/txw1958/'>>>
     

 

按gb2312的方式编码，转成bytes

>>> website_bytes_gb2312 = website.encode(encoding="gb2312")>>> type(website_bytes_gb2312)
     
      >>> website_bytes_gb2312b'http://www.cnblogs.com/txw1958/'>>>
     

 

解码成string，默认不填

>>> website_string = website_bytes_utf8.decode()>>> type(website_string)
     
      >>> website_string'http://www.cnblogs.com/txw1958/'>>>>>>
     

 

解码成string，使用gb2312的方式

>>> website_string_gb2312 = website_bytes_gb2312.decode("gb2312")>>> type(website_string_gb2312)
     
      >>> website_string_gb2312'http://www.cnblogs.com/txw1958/'>>>