杜仲剥皮方法的分类？

下列程序的运行结果是______。
#include＜iostream.h＞
class Base

public:
virtual void func(int i)cout＜＜"class Base:"＜＜i＜＜end1;)
;
class Derived: public Base

public:
void func(double d)cout＜＜"class Derived:"＜＜d＜＜endl;
; void main( )

Base a,*p=a;
Derived b;
p=&b;
(*p).func(3.3);