urllib.parse quote/unquate/urlencode

1. quote :url编码函数，将中文进行转化为%xxxx

   # _*_ coding::utf_8 _*_
   import urllib.request
   import urllib.parse
   url='http://baidu.com/index.html?name=杨洪&pwd=123456'
   ret=urllib.parse.quote(url)
   ret1=urllib.parse.unquote(ret)
   print(ret)
   print(ret1)
   
   
   ##输出结果：
   http%3A//baidu.com/index.html%3Fname%3D%E6%9D%A8%E6%B4%AA%E8%BE%89%26pwd%3D123456
   
   
   http://baidu.com/index.html?name=杨洪&pwd=123456

2. unquote:url解码函数，将%XXX转化为指定字符
3. urllencode:给定一个字典，将字典拼接为query_string,并且实现了编码功能

   # _*_ coding::utf_8 _*_
   import urllib.parse
   url='http://baidu.com/index.html'
   data={
       'name':'goudan',
       'sex':'女',
        'age':'18'
   }
   query_string=urllib.parse.urlencode(data)
   print(query_string)
   url=url+"?"+query_string
   print(url)
   ####
   运行结果
   name=goudan&sex=%E5%A5%B3&age=18
   http://baidu.com/index.html?name=goudan&sex=%E5%A5%B3&age=18
   #用于url的拼接