请问下面程序的输出结果为什么是c？

Question

#include <iostream>
using namespace std;
class A{
    public:
    virtual Print()
    {
        cout<<"a";
     } 
}; 
class B:public A{
    public:
    Print()
    {
        cout<<"b";
    } 
}; 
class C:public B{
    public:
    Print()
    {
        cout<<"c";
     } 
}; 
int main()
{
    A *a;
    C c;
    a=&c;
    a->Print(); 
    return 0;

}

Answer 1

因为继承关系是A>B>C
a=&c表明使用的是C的实例

同理

  A *a;
    B b;    
    a = &b;
    a->Print();

上面将输出b

  B *b;
    C c;
    b = &c;
    b->Print();

这段输出c