虚基类应用举例

#include 
    
     #include 
     
      using namespace std;class Person{public:    Person(char *nam,char s,int a) //构造函数    {        strcpy(name,nam);        sex=s;        age=a;    }protected:                  //保护成员    char name[20];    char sex;    int age;};class Teacher:virtual public Person //声明Person为公用继承的虚基类{public:    Teacher(char *nam,char s,int a,char *t):Person(nam,s,a) //构造函数    {        strcpy(title,t);    }protected:        //保护成员    char title[10];}; //职称class Student:virtual public Person //声明Person为公用继承的虚基类{public:    Student(char *nam,char s,int a,float sco): //构造函数        Person(nam,s,a),score(sco) {}           //初始化表protected:      //保护成员    float score;};//成绩class Graduate:public Teacher,public Student //声明Teacher和Student类为公用继承直接基类{public:    Graduate(char *nam,char s,int a,char *t,float sco,float w): //构造函数        Person(nam,s,a),Teacher(nam,s,a,t),Student(nam,s,a,sco),wage(w) {} //初始化表    void show( ) //输出研究生的有关数据    {        cout<<"name:"<
      
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