这是一个图书信息管理系统，这是一个用c#开发的程序。可以对图书的进，销，存进行操作。-This is a library information management system, which is a c# with the program. The right book can import and marketing, and operations for survival.

图书管理系统，管理图书的增删改查，进销存-Library management system, management books, CRUD, Invoicing