一个简单的图书馆图书查询界面，要求完成的基本功能如下：

根据图书名中的关键字查找

根据作者名查找

根据价格查找

可以用一个多维数组来存贮图书信息，也可以用其他方法，比如读文件、ArrayList存储等难度大一点的方式，要求至少有50本以上的图书信息。

-A simple query interface library books, required to complete the basic functions are as follows: Find by author name lookup can use a multidimensional array to store information based on the price of the book to find, you can also use other methods, such as reading books were based on keywords difficulty way bigger files, ArrayList storage, etc., requires at least 50 more book information.