2．编写一个学生和教师数据输入和显示程序。其中，学生数据有编号、姓名、班级和成绩，教师数据有编号、姓名、职称和部门。要求将编号、姓名输入和显示设计成一个类Person；然后设计类Person的派生类：学生类Student和教师类Teacher；编写一个主函数，通过定义student、teacher的对象，完成相应功能-2. Students and teachers to write a data entry and display program. Among them, the student data with a number, name, class and achievement, teacher data with a number, name, job title and department. Request number, name, input and display designed as a class Person　and then design the derived class class Person: class Student and teacher student class Teacher　write a main function, by defining the student, teacher of the object, complete the corresponding function