python 属性封装

 1 #封装 
 2 
 3 class Person:
 4     def __init__(self,name,passwd):
 5         self.name=name
 6         self.__passwd=passwd
 7         
 8     def get_pwd(self):
 9         return self.__passwd
10         
11 Jack=Person("Jack","abc123")
12 
13 print(Jack._Person__passwd)
14 print(Jack.get_pwd())

 1 #封装 
 2 
 3 class Person:
 4 #静态属性也可以私有
 5     __key=123
 6     def __init__(self,name,passwd):
 7         self.name=name
 8         self.__passwd=passwd
 9     #私有方法
10     def __get_pwd(self):
11         print(self.__dict__)
12         return self.__passwd
13         
14     def login(self):
15         self.__get_pwd()
16         
17 Jack=Person("Jack","abc123")
18 
19 #print(Jack._Person__passwd)
20 #print(Jack.get_pwd())
21 Jack.login()