填空题
下列程序的运行结果是______。
#include＜iostream.h＞
class A
{
public:
virtual void use( ) {cout＜＜"in A\n";}
};
class B:public A
{
public:
virtual void use( ) {cout＜＜"in B\n";}
};
class C:public B
{
public:
virtual void use( ){cout<<"in C\n";}
};
void main( )
{
A*obj；
obj=new C;
obj-＞use( );
delete obj;
}
【参考答案】
in C