本程序设计的是一个简单的学生成绩信息管理系统，能实现少量学生信息的简单管理，这些信息包括学生的学号、姓名、3门课程成绩及平均分。所实现的功能包括少量学生信息的输入、输出、添加、删除、按平均分排序、按名字或学好查找等。

运行程序后，即进入系统的图形界面，有三个主菜单，分别能实现管理、查看与查找等功能；按快捷键及上下左右方向键可选择弹出相应的子菜单，即进入上一段所述的各项具体功能，按相应提示操作即可完成。

在现实中，可以使用此程序管理少量学生（如一个班的学生）的信息，可以方便存储及快速超找。

-The program design is a simple student performance information management system, to achieve a few simple management of student information, school information including student number, name, 3 and the average course grades. Achieved by the features include a small amount of student information input, output, add, delete, sort by average score, by name, or learn to find and so on.

After running the program, the graphical interface into the system, there are three main menu, namely to achieve manage, view and search functions　shortcut keys and the up and down arrow keys to select the appropriate sub-menu pops up, that is entered in the above paragraph specific functions, according to the corresponding instructions to complete.

In reality, management can use this procedure a small amount of students (such as a class of students) of the information, you can find convenient storage and ultra fast.