下面输出啥????
#include <iostream>
using namespace std;
class A
{
public:
~A()
{
cout<<"~A()";
}
};
class B
{
public:
virtual ~B()
{
cout<<"~B()";
}
};
class C:public A,public B
{
public:
~C()
{
cout<<"~C()";
}
};
int main()
{
C *c = new C;
B *b1 = dynamic_cast<B*>(c);
A *a2 = dynamic_cast<A*>(b1);
delete a2;
return 0;
}