图书管理系统数据库设计－包含ER图 是自己原来课程设计做的-Database design library management system- ER diagram contains

课程资源管理系统，包括需求分析，总体设计，各功能模块设计，系统流程分析，数据库设计，ER图等。-Curriculum resources management system, including needs analysis, design, design of various functional modules, the system flow analysis, database design, ER map.