装饰器

简单的装饰器

# import  time
# def timr(func):
#     def inner(*ages,**kwargs):
#         start=time.time()
#         ret=func(*args,**kwargs)
#         print(time.time()-start)
#         return ret
#     return inner
# @timr
# def func(a):
#     print('大家好，元旦放假了')
#     return '终于放假了'