该图书管理系统包括登录、退出、添加用户、修改用户、删除用户、借阅管理、还书管理、添加书籍、修改书籍、删除书籍、书籍列表、借阅情况表、用户列表等功能模块-The library management system, including login, exit, add users, change user, delete user, loan management, book management, add books, edit book, remove the books, list of b