停车场管理系统，可计数，计时，计费等功能，是栈与队列的集合-car park management system can count, time, billing and other functions, and the stack is a collection of queue

一卡一车，停车刷卡闸门打开，开始自动计时计费；取车刷卡闸门打开，自动统计停车时间及所需缴纳的费用。-A card for a car, parking gates open credit card, start the automatic time billing take the car to open the gate card, automatic statistics downtime and required to pay costs.