这是一个很基础的小系统，里面有一些添加成绩，删除成绩，和查询成绩功能，但不适合实用，只是了解如何运用控件和参数还有MFC-This is a very basic systems, there are some achievements to add, delete results, performance and query functions, but not for practical, just learn how to use the controls and parameters