多层装饰器、带参数装饰器

# 带参数的装饰器
# import time
# FLAGE = False           # 加个标志位，使全部的装饰器可以失效或有效
# def timmer_out(flag):
#     def timmer(func):
#         def inner(*args,**kwargs):
#             if flag:
#                 start =time.time()
#                 ret = func(*args,**kwargs)
#                 print(time.time()-start)
#                 return ret
#             else:
#                 ret = func(*args, **kwargs)
#                 return ret
#         return inner
#     return timmer
#
# @timmer_out(FLAGE)  # timmer_out(FLAGE)就是timmer
# def func():
#     time.sleep(0.1)
#     print('sleep:0.1')
# @timmer_out(FLAGE)
# def fun1():
#     time.sleep(0.5)
#     print('sleep:0.5')
# func()
# fun1()


# 多层装饰器
# 记录用户登陆情况，记录时间等场景

def fun1(func):
    def inner(*args,**kwargs):
        print(111)
        ret = func()
        print(222)
        return ret
    return inner

def fun2(func):
    def inner1(*args,**kwargs):
        print('aaa')
        ret = func()
        print('bbb')
        return ret
    return inner1
@fun1
@fun2
def func():
    print('冯')
func()