要求程序输出每辆车到达后的停车位置(停车场或便道上)，以及某辆车离开停车场时应交纳的费用（费率自定）和它在停车场内停留的时间，并自拟一个实验实例进行验证。 -Requirements of the program output per vehicle parking position after arrival (parking lot or on the sidewalk), as well as a car leaving the parking lot should pay the c