问题的提出：编程建立学生成绩管理系统。要求具有以下功能：一个学生的信息包括学号、姓名、英语成绩、语文成绩、数学成绩，要求输入每位学生的信息并显示这些信息；同时计算每位学生的总分即英语、语文、数学成绩之和，并对输入的若干学生按总分排名，按总分名次输出每位学生及其信息；最后计算这些学生的英语平均分、语文平均分和数学平均分，并输出结果。-Of the problem: programming the establishment of student achievement management system. Request has the following features: a student s information including its places, names, and English achievement, language achievement, mathematics achievement, each student asked to enter information and display the information　at the same time calculating the total score for each student for English, Language, Mathematics and the results, and enter the total number of students ranking, ranking by total output for each student and their information　the final calculation of the average of these students at the English language and mathematics average score average score, and output.