用c++编写的图书管理系统，可按管理员和读者身份登录，管理员登陆密码为888888，管理员可修改读者信息和图书信息，读者可以借阅、归还图书，查询图书信息等。-Using c++ to prepare the library management system, the administrator can log in identity and readers, the administrator password for the 888,888, the administrator can modify the reader information and book information, readers can borrow, return the books, information books and other inquiries.