Classmethod 修饰符

Classmethod是什么鬼

 cat classmeth.py 
#!/usr/bin/python
# -*- coding: utf-8 -*-
 
class A(object):
    bar = 1
    def func1(self):  
        print ('foo') 
    @classmethod
    def func2(cls):
        print ('func2')
        print (cls.bar)
        cls().func1()   # 调用 foo 方法
 
A.func2()               # 不需要实例化
evan@latop:~/python//pytest$ python classmeth.py
func2
1
foo



evan@latop:~/python/py2018/pytest$ cat  2meth.py
#!/usr/bin/python
# -*- coding: utf-8 -*-
 
class A(object):
    bar = 'love'
    def func1(self):  
        print ('2love') 
    @classmethod
    def func2(cls):
        print ('func2')
        print (cls.bar)
        cls().func1()   # 调用 foo 方法
 
A.func2()               # 不需要实例化

 python  2meth.py 
func2
love
2love

see also

Python classmethod 修饰符

python - @staticmethod和@classmethod的作用与区别

https://realpython.com/instance-class-and-static-methods-demystified/