自动售货机

系统能自动销售货物，自动完成对货物信息的存储、进程控制、硬币处理、余额计算和显示等功能。

自动售货机可以管理4种货物，每种的数量和单价在初始化时输入，在存储器中存储；用户可以用硬币进行购物，利用按键进行选择；售货时能够根据用户投入的硬币，判断钱币是否够，钱币足够则根据顾客要求自动售货，钱币不够则给出提示并退出；能够自动计算出应找钱币余额、库存量。

-Vending machine system can automatically sale of goods, auto-complete cargo information storage, process control, handling of coins, balance calculation and display functions. Vending machines can manage four kinds of goods, the quantity and unit price of each input in the initialization and stored in memory　users can use coins to make purchases, use the buttons to choose　sales when the coins based on user input to determine whether coin, the coin is enough according to customer requirements vending, coins, not enough is given prompt and exit　can automatically calculate the coin balance should be looking for stocks.