cout<<"\t\t\t\t\t+-------------------------------------------------+"<<endl;
cout<<"\t\t\t\t\t| 欢 迎 使 用 |"<<endl;
cout<<"\t\t\t\t\t| 请选择你所需要的操作 |"<<endl;
cout<<"\t\t\t\t\t| 1.输出所有学生信息 |"<<endl;
cout<<"\t\t\t\t\t| 2.输出最高分和最低分的姓名 |"<<endl;
cout<<"\t\t\t\t\t| 3.增加信息 |"<<endl;
cout<<"\t\t\t\t\t| 4.删除信息 |"<<endl;
cout<<"\t\t\t\t\t| 5.保存入文件 |"<<endl;
cout<<"\t\t\t\t\t| 6.读取保存的数据 |"<<endl;
cout<<"\t\t\t\t\t| 7.查找学生信息 |"<<endl;
cout<<"\t\t\t\t\t| 8.输出优秀的同学 |"<<endl;
cout<<"\t\t\t\t\t| 9.输出各科平均成绩 |"<<endl;
cout<<"\t\t\t\t\t| 10.按总成绩排序 |"<<endl;
cout<<"\t\t\t\t\t| 11.恢复已删除数据 |"<<endl;
cout<<"\t\t\t\t\t| 12.退出程序 |"<<endl;
cout<<"\t\t\t\t\t+-------------------------------------------------+"<<endl;
