假设每个学生信息包括学号、姓名和3门课程的考试分数。其中学号由四部分组成，每部分占两位，依次为院系代号、入学年号、班级号和顺序号。要求在从键盘输入学生数据时有较完整的输入引导。-Suppose each student information including student number, course name and three test scores. Student ID which consists of four parts, each part of the total 2,