python 类对象和实例对象动态添加方法

 class Person():

     def __init__(self, name):

         self.name = name

 def print_name(self):

     print(self.name)

 p = Person('Li')

 import types

 p.print_name = types.MethodType(print_name, p)    # 绑定函数到对象

 p.print_name()

 @staticmethod

 def print_abc():

     print('abc')

 Person.print_abc = print_abc

 Person.print_abc()

 @classmethod

 def print_123(cls):

     print('')

 Person.print_123 = print_123

 Person.print_123()