Code

class Site:
__wocao = 123 # Private property
wocao = 456 # Public attribute
def __init__(self, name, url):
self.name = name # public
self.__url = url # private
def who(self):
print('name : ', self.name)
print('url : ', self.__url)
def __foo(self): # Private method
print(' This is the private method ')
def __xxoo(self):
print(" This is a xxoo Private methods of ！")
def foo(self): # Public methods
print(' It's the public way ')
self.__foo()
self.__xxoo()
print(" Private properties of class , Can only be called inside a class ：",__wocao)
x = Site(' Dean Technology ', 'https://myit.icu')
print(" Call the public property of the class ：",x.wocao) # Invokes the properties of the class
# print(x.__wocao) # Private properties of a class cannot be called
x.who() # Normal output
x.foo() # Normal output 

Running results

 Private properties of class , Can only be called inside a class ： 123
Call the public property of the class ： 456
name : Dean Technology
url : https://myit.icu
It's the public way
This is the private method
This is a xxoo Private methods of ！