说明：  学生成绩管理系统，包括数据文件和源文件，使用matlabGUI操作，包括计算平均成绩和绩点计算，显示学生姓名和学号。功能完善，欢迎下载。
(Student achievement management system, including data file and source file, uses Matlab GUI operation, including calculating average score and grade point calculation, displaying student name and student number. Perfect function, welcome to download.)