例11.8 聲明一個(gè)教師(Teacher)類和一個(gè)學(xué)生(Student)類，用多重繼承的方式聲明一個(gè)研究生(Graduate)派生類。教師類中包括數(shù)據(jù)成員name(姓名)、age(年齡)、title(職稱)。學(xué)生類中包括數(shù)據(jù)成員name1(姓名)、age(性別)、score(成績(jī))。在定義派生類對(duì)象時(shí)給出初始化的數(shù)據(jù)，然后輸出這些數(shù)據(jù)。
#include <iostream>
#include <string>
using namespace std;
class Teacher//聲明類Teacher(教師)
 {public:                                  //公用部分
   Teacher(string nam,int a, string t)      //構(gòu)造函數(shù)
    {name=nam;
     age=a;
     title=t;}
   void display( )                          //輸出教師有關(guān)數(shù)據(jù)
     {cout<<″name:″<<name<<endl;
      cout<<″age″<<age<<endl;
      cout<<″title:″<<title<<endl;
     }
  protected:                               //保護(hù)部分
    string name;
    int age;
    string title;                          //職稱
};

class Student                                //定義類Student(學(xué)生)
 {public:
   Student(char nam[],char s,float sco)
     {strcpy(name1,nam);
      sex=s;
      score=sco;}                          //構(gòu)造函數(shù)
   void display1( )                        //輸出學(xué)生有關(guān)數(shù)據(jù)
    {cout<<″name:″<<name1<<endl;
     cout<<″sex:″<<sex<<endl;
     cout<<″score:″<<score<<endl;
    }
  protected:                               //保護(hù)部分
   string name1;
   char sex;
   float score;                            //成績(jī)
 };

class Graduate:public Teacher,public Student   //聲明多重繼承的派生類Graduate
 {public:
   Graduate(string nam,int a,char s, string t,float sco,float w):
        Teacher(nam,a,t),Student(nam,s,sco),wage(w) { }
   void show( )                                      //輸出研究生的有關(guān)數(shù)據(jù)
    {cout<<″name:″<<name<<endl;
     cout<<″age:″<<age<<endl;
     cout<<″sex:″<<sex<<endl;
     cout<<″score:″<<score<<endl;
     cout<<″title:″<<title<<endl;
     cout<<″wages:″<<wage<<endl;
     }
  private:
    float wage;                     //工資
 };

int main( )
 {Graduate grad1(″Wang-li″,24,′f′,″assistant″,89.5,1234.5);
  grad1.show( );
  return 0;
}