装饰器

装饰器的固定模式

def warpper(f):
    def inner(*args,**kwargs):
        print("WDNMD")
        ret = f(*args,**kwargs)
        return ret
    return inner

@warpper
def func(a,b):
    print("我炸了",a,b)
    return "秋梨膏"
ret = func(1,b=[2,3])
print(ret)