虚基类
源程序：
#include <iostream>
using namespace std;
class A{
public:
int a;
void showa(){
cout<<"a="<<a<<endl;
}
};
class B:virtual public A{
public:
int b;
};
class C:virtual public A{
public:
int c;
};
class D:public B,public C{
public:
int d;
};
int main(){
D Dobj;
Dobj.a = 11;
Dobj.b = 22;
Dobj.showa();
cout<<"Dobj.b="<<Dobj.b<<endl;
return 0;
}
运行结果：
