有如下程序:
#include <iostream>
using namespace std;
class AA
public:
virtual void f()
cout << "AA";
;
class BB : public AA
public:
BB()
cout<<"BB";
;
class CC : public BB
public:
virtual void f()
BB::f();
cout << "CC";
;
int main()
AA aa,*p; BB bb; CC cc;
p=&cc;
p->f();
return O;
运行后的输出结果 【14】