类(7)装饰器

def time_count(func):
    '''
    装饰器
    :param func:
    :return:
    '''
    def wrap(*args, **kwargs):
        time_flag = time.time()
        temp_result = func(*args, **kwargs)
        print(temp_result)
        print("time cost:", time.time() - time_flag)

        return temp_result

    return wrap


@time_count
def loop_time(x, y):
    temp_result = 0
    for i in range(x, y):
        time.sleep(random.choice((0.1, 0.2, 0.3)))
        temp_result = x + y
    return temp_result


loop_time(1, 2)


# 第17、18行代码等同于time_count(loop_time)