一个小型超市进销存系统，包括进货、销售、库存、报表、收银等方面，本程序主要演示如何利用JSP和Servlet技术建立一个基于web的应用系统-a small supermarket Invoicing system, including the purchase, sale, stocks, financial statements, cash registers, and so this program demonstrated how to use the main JSP and Serv