助教（virtual）

 #include<iostream>

class Student

{

public:

 std::string STDENTname;

 int number;

public:

 Student(std::string nam, int num) {

  STDENTname = nam; number = num;

 }

  void Showinfo1()

  {

   std::cout << "Student's Name:" << STDENTname << std::endl;

   std::cout << "Student's Number:" << number << std::endl;

  }

 

};

class Teather

{

protected:

 std::string name;

 int workID;

 std::string title;

public:

 std::string course;

 int hoursPerWeek;

public:

 Teather(std::string nam1, int wor, std::string tit, std::string co, int hour)

 {

  name = nam1;

  workID = wor;

  title = tit;

  course = co;

  hoursPerWeek = hour;

 }

 void Showinfo2()

 {

  std::cout << "Teacher's Name:" << name << std::endl;

  std::cout << "Teacher's WorkID:" << workID << std::endl;

  std::cout << "Teacher's Title:" << title << std::endl;

  std::cout << "Teacher's Course:" << course << std::endl;

  std::cout << "Teacher's HourPerWeek:" << hoursPerWeek << std::endl;

 }

 

};

 

class TeachingAssistant : public Student,virtual Teather

{

public:

 TeachingAssistant(std::string nam, int num, std::string co, int hour) : Student(nam, num),Teather( NULL,NULL, NULL,co, hour)

 {STDENTname = nam;

  number = num;

  course = co;

  hoursPerWeek = hour;

 }

 void Showinfo3()

 {

  std::cout << "TeachingAssistant's Name:" << STDENTname << std::endl;

  std::cout << "TeachingAssistant's Number:" << number << std::endl;

  std::cout << "TeachingAssistant'sCourse:" << course << std::endl;

  std::cout << "TeachingAssistant's HourPerWeek:" << hoursPerWeek << std::endl;

 }

 

};

  

int main()

{

 Student a("Lihua", 11);

 TeachingAssistant b("Liuming", 12, "Math", 3);

 Teather c("Xiaoming", 14, "doctor", "Chinese", 66);

 a.Showinfo1();

 b.Showinfo3();

 c.Showinfo2();

}