Special class members python-

 

First, members of the modifier

    There are members of the 
    private members of 
    
    class Foo:
         DEF  __init__ (Self, name): 
            self.name = name
             # self.age = Age 
            Self. __Age = Age # private, can not access external 
　　　　　DEF Show (Self): 
　　　　　　　 return Self .__ Age 

    obj = Foo ( ' Zichuan ' , 21 is ) 
    Print (obj.name) 
    # obj.age 
    Print (obj. __age)  # private 
------------------------ ----------------------------- 
class Foo: 
　　V = '123' 
　　DEF the __init __ (Self):
　　　　pass
　　def show(self):
　　　　return Foo.__v
　　@staticmethod　　#静态方法
　　def stat(self):
　　　　return Foo.__v
#print(Foo.__v)
#ret = Foo().show()
#print(ret)

ret = Foo.stat()
print(ret)
------------------------------------------

class Foo:
　　def __fl(self):
　　　　return 123
　　def f2(self):
　　　　r = self.__f1()
　　　　return r
obj = Foo()
ret = obj.f2()
print(ret)
----------------------------------------------
class F:
　　def __init__(self):
　　　　self.ge = 123
　　　　seld.__game = 123

class s(F):
　　def __init__(self,name):
　　　　self.name = name
　　　　self.__age = 21
　　　　　super(s,self).__init__()
　　def show(self):
　　　　print(self.name)
　　　　print(self.__age)
　　　　print(self.ge)
　　　　#print(self.__game)
s = s('zichuan')
s.show()

 

Second, the members of the special

class Foo:
    def __init__(self):
        print('init')
    
    def __call__(self,'args,**kwargs):
       print('call') 
    
obj = Foo()
obj()
#Foo()()

-------------------------------------------

 

Third, starting the metaclass that, like　　

a.python together everything is an object 
b. 
    class Foo:
         Pass 

    obj = Foo ()
     # obj is an object, Foo class 
    # Foo class is an object, type object