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。(一)功能要求：

(1)图书信息录入功能(图书信息用文件保存)－－输入

(2)图书信息浏览功能－－输出

(3)查询功能：(至少一种查询方式)

按书名查询

按作者名查询

(4)图书信息的修改

(5)图书信息的删除

-Book information, including: registration number, title, author names, words, publishers, publishing time, and prices. (A) of the functional requirements: (1) book information into the function (book information with the file)- Input (2) book information browsing- Output (3) check function: (check at least one way) by the title query by author name query (4) book information changes (5) the deletion of book information