import time# 函数装饰器def runtime(fun1):    def inner(*args, **kwargs):        """inner doc """        start_time = time.time()        f = fun1(*args, **kwargs)        time.sleep(1)        end_time = time.time()        interval = end_time - start_time        print("function %s 运行时间：%s " % (fun1.__name__, interval)) 　　　　 return f    return inner@runtimedef fun_a(a):    """fun_a : hello + a"""    print("hello"+a)    # print(fun_a.__name__)    # print(fun_a.__doc__)fun_a('a')#类装饰器class Runtime(object):    def __init__(self, delay=1):        self.delay = delay            def __call__(self, fun):        """Runtime doc"""        def inner(*args, **kwargs):            """inner doc"""            start_time = time.time()            f = fun(*args,**kwargs)            time.sleep(self.delay-1)            end_time = time.time()            interval = end_time - start_time            print("function %s 运行时间：%.4f " % (fun.__name__, interval))            return f        return inner@Runtime(2)def fun_a(a):    """fun_a : hello + a"""    print("hello"+a)    print(fun_a.__name__)    print(fun_a.__doc__)fun_a('a')