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('123')

Person.print_123 = print_123

Person.print_123()