图书信息包括：登录号、书名、作者名、分类号、出版单位、出版时间、价格等。试设计一图书信息管理系统，使之能提供以下功能：

系统以菜单方式工作

图书信息录入功能(图书信息用文件保存)

图书信息浏览功能

查询和排序功能：(至少一种查询方式)

 按书名查询

 按作者名查询

图书信息的增加、删除与修改

-Book Information includes: accession number, title, author names, words, publishers, publishing time and price. Try to design a library information management system so that it can provide the following features: the menu system to work the way 　book information input function (book information is available to save the file) 　Book Information browsing query and sort functions: (check at least one way) 　　　Search by title books by author name query information to add, delete and modify the