要求最后的学生数据输出为学号、姓名、性别、年龄、语数外三门各科成绩，最后加一个按照从高到低输出学生三门各科成绩、总成绩列表的功能
https://blog.csdn.net/qiancm/article/details/118495622?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522162573575116780357239979%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=162573575116780357239979&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2allfirst_rank_v2~rank_v29-1-118495622.first_rank_v2_pc_rank_v29&utm_term=%E7%BB%93%E6%9E%84%E4%BD%93%E3%80%81%E6%96%87%E4%BB%B6%E6%93%8D%E4%BD%9C%E3%80%81%E6%8C%87%E9%92%88+qiancm&spm=1018.2226.3001.4187可以先学习一下
参考：（学生管理系统）https://blog.csdn.net/qfl_sdu/article/details/118098121