python学习 动态添加属性和方法
1 '''python动态添加属性和方法''' 2 class Dog(): 3 def __init__(self,name,age): 4 self.name=name 5 self.age=age 6 7 dog=Dog('alex',12) 8 print(dog.name) 9 print(dog.age) 10 11 #添加对象属性 12 dog.add='shanghai' 13 print(dog.add) 14 #添加类属性 15 Dog.addr='上海' 16 print(Dog.addr) 17 18 #动态添加方法一(types.MethodType): 19 def a1(self): 20 print('aaaaaaaaa-{}'.format(self.name)) 21 import types 22 dog.a1=types.MethodType(a1,dog) 23 dog.a1() 24 25 #动态添加方法二(staticmethod): 26 @staticmethod 27 def a2(): 28 print('bbbbbbbbbb') 29 Dog.a2=a2 30 dog.a2() 31 32 #动态添加方法三(classmethod): 33 @classmethod 34 def a3(cls): 35 print('cccccccc{}'.format(cls.addr)) 36 Dog.a3=a3 37 dog.a3()
posted on 2019-08-10 16:10 cherry_ning 阅读(91) 评论(0) 编辑 收藏 举报