此程序实现了对一个教师类的定义。对其中的成员数据进行了初始化，并对成员数据进行构造，ShowInfo方法用来输出成员数据。setName用来更改名字，getName用来获得名字-This program is a definition of a teacher in class. Member data initialization, and members of the data structure, ShowInfo method is used to output the member data. The setName used to change name, getName used to obtain the name