学生成绩管理，实现按姓名、学号查询，以及增加、删除、修改学生成绩，显示不同分数段的学生成绩和按总成绩排序结果并输出成绩等功能。 printf("| 10 按学号排序结果并输出成绩-Student performance management, to achieve, by name, student number query, as well as add, delete, modify student achievement, indicating a different segment