编程计算每个学生4门课成绩的平均分，将学生各科成绩及平均分输出大文件student.txt中，然后再从文件中读出，显示到屏幕上。-Program to calculate each student' s average score 4 subjects, the student and the average score of all subjects student.txt large files in the output, and then read from the file is

编程计算每个学生4门课的平均成绩，将学生的各科成绩及平均分输出到文件score.txt.-Programming calculated for each student four course grade point average, a student' s academic results and the average output to a file score.txt.