该自动售货系统的功能可分为两类。对于管理员，可建立库存信息，查询商品销售量及销售总额；而对于消费者，可查询商品信息，购买商品等主要功能。(The function of the vending system can be divided into two categories. For the administrator, the inventory information can be established, the sales volume and the total sales amount are inquired. For the consumers, the main functions such as the commodity information and the purchase of goods can be inquired.)