编程序管理学生成绩，计算并输出学生姓名、各公共课的成绩、平均分和总分,专业课会计学成绩、经济学成绩以及所有课程的总成绩。在main函数中进行测试。-Procedures for the management of student achievement, students calculate and output the name of the results of the public courses, with an average points and total score, speci

将一个学生的3门课成绩文件进行插入处理，程序先计算插入学生的平均成绩，然后将它按照平均分的高低顺序插入。插入后建立一个新的文件。-Insert processing of a student' s course grades file inserted into the student' s grade point average, the program first calculated, and then insert it in accordance with the aver