记录两个装饰器

统计函数被调用次数的装饰器

import functools


def counter(func):
    @functools.wraps(func)
    def tmp(*args, **kwargs):
        tmp.count += 1
        return func(*args, **kwargs)

    tmp.count = 0
    return tmp




@counter
def func():
    print(func.count)
 
func()  #1
func()  #2
func()  #3

类中的某个方法用于装饰类中的其他方法

from operator import methodcaller


def do_something(funName='other', a='hello', b='world'):
    def wrapper(fun):
        def inner(*args, **kwargs):
            cls = args[0]
            methodcaller(funName,a=a,b=b)(cls)
            print(f'调用了方法{funName},参数a={a},参数b={b}')
            return fun(*args, **kwargs)

        return inner

    return wrapper


class Clazz():
    @do_something()
    def func(self, x, y):
        c = x + y
        print('{}+{}={}'.format(x, y, c))

    @do_something(funName='other',a='你好',b='世界')
    def func2(self, x, y):
        c = x + y
        print('{}+{}={}'.format(x, y, c))

    def other(self, a, b):

        print(f'a is {a},b is {b}')


if __name__ == '__main__':

    c =Clazz()

    c.func(x=1,y=2)
# a is hello,b is world
# 调用了方法done,参数a=hello,参数b=world
# 1+2=3

    c.func2(x=100,y=200)
# a is 你好,b is 世界
# 调用了方法other,参数a=你好,参数b=世界
# 100+200=300