文件要求添加或删除学生姓名，学号，班级等基本信息并保存，保存后可通过学生姓名进行信息查找。其次，可进行班级的添加和删除，保存记录。-File to add or remove a student s name, student number, essential information such as class and save, save information student name can help you find. Second, the class can be added an