# 修饰器
def Decorator(f):
    def bbf(*args,**kwargs):
        pass
        ret=f(*args,**kwargs)
        pass
        print('修饰一下')
        return ret
    return bbf
@Decorator
def func(a,b):
    pass
    print('hi',a,b)
    return "ok"
print(func(1,2))

hi 1 2
修饰一下
ok