试编写一个用索引进行顺序查找的程序。

（1）　　要求将数据以分块有序形式分别存放在不少于10个磁盘文件（块）中，每个文件中不少于10个数据，并能在内存中自动建立索引表；

（2）　　对任意待查找的关键字，若查找成功，给出其关键字比较次数。

（3）　　自行设计测试用例。

-Try to write a sequential search using the index procedure. (1) requires the data to the form of block order were kept in less than 10 disk file (blocks), each file in less than 10 data, and can automatically set up in memory index table　(2 ) to be looking for any keywords, to find success if given the number of comparisons of their keywords. (3) to design test cases.