建立一个包含图书（书号，书名，定价）信息的的链表，并具有如下功能：

(1) 根据指定图书个数，逐个输入图书信息；

(2) 根据书名进行查找，返回此书的书号和定价；

(3) 根据指定的位置可返回相应的图书信息（书号，书名，定价）；

(4) 给定一个图书信息，插入到表中指定的位置；

(5) 删除指定位置的图书记录；

(6) 统计表中图书个数。

-A book containing (ISBN, title, pricing) information linked list, and has the following functions: (1) according to the specified number of books, one by one enter the book information　(2) According to the book title to find and return the book' s ISBN and pricing　(3) according to the specified location to return the corresponding book information (ISBN, title, price)　(4) given a book information into the location specified in the table　(5) to delete the specified location of the books records　(6) the number of tables in the books.