20、虚函数重载

多继承中的虚函数重载

#include <iostream>
#include <string.h>
using namespace std;

class Person
{
protected:
    char *name;
public:
    Person(char * n){name = new char[strlen(n) + 1]; strcpy(name, n);}
    ~Person(){delete[] name;}
    virtual void display(){cout<<"姓名："<<name<<endl;}
};


class student:public Person
{
public:
    student(char * n):Person(n){}
    void display()
    {
        cout<<"学生 姓名："<<name<<endl;
    }
};


class teacher:public Person
{
public:
    teacher(char * n):Person(n){}
    void display()
    {
        cout<<"老师 姓名："<<name<<endl;
    }
};


int main()
{
    student s("xxx");
    teacher t("TTT");
    Person *p;

    p = &s;
    p->display();

    p = &t;
    p->display();

    return 0;

}