这是一个关于计算机等级考试的上机预测的练习题目的原代码，文件中有相关的说明，是一系列个关于文件，数字和字符串处理的好例子！-This is a computer grade examination on the previous forecast of practice for the original topic code, a document related to the note of a series of 000 documents, digital, and the string