又一个简单的Delphi进销存程序，希望大家喜欢。程序更多的面向Delphi初学者，学习一些简单的数据库操作。进销存系统功能：商品基础信息管理、商品入库管理、商品销售管理、销售退货查询、入库退货管理、入库查询、退货管理等。本系统需要登录后才能使用，打开程序请登录：用户名：宋坤（管理员级），密码：sk -Delphi has a simple Invoicing program, I hope you like it. Program more oriented Delphi beginners to learn some simple database operations. Invoicing system functions: Commodity-based information management, product storage management, sales management, sales returns queries, warehousing returns management, warehousing queries, returns management. After the system need to log in to use, open the program, please visit: Username: Song Kun (administrator level), Password: sk