图书登记管理系统 实现对图书与读者的简单管理-book management system

C+SQL2005完成学生选课，学生可以进选课，退选，管理员完成Excel 表上传至数据库-C CSharp SQL2005 to complete the student course selection, students can enter the course selection, withdrawal, the administrator complete the Excel upload to the database table