学号、姓名、5门课程（英语、高数、马哲、计算机、电子技术）的成绩，输入此数据，要求按总分从高到底的顺序保存到cj.dat文件中，并按学号从小到大的顺序打印出每门课程的成绩表，以及总分最高分的学生的数据（包括学号、姓名、各门课的成绩、平均分数）。-Student id, name, 5 courses (English, advanced mathematics, Ma Zhe, computer, electronic technology), input the data, save request according to the order of the total score from the high to cj. Dat file, and follow the order enquiries since the childhood to print out each course result table, and the highest total score of student data (including student id, name, each class grades, the average score).