图书管理系统，包括用户登录与添加、权限设置与修改、图书信息添加、图书信息管理、用户管理、图书挂失与处理、还书处理、借阅历史查询、借阅管理等功能。-Books management system management system, including user login and add, permission Settings and modification, books information, book information management, add user management, book report the loss of STH and processing, the book processing, lending history inquiry, lending management etc. Function.