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(请给出正确答案)
下列程序的输出结果是 ( )
#include
using namespace std;
class A{
int a
public:
A():a(9){}
virtual void print() const {cout<};
class B:public A{
char b;
public:
B(){b= ‘S’;}
void print()const{cout<};
void show(Aa&X){X,print()}
int main()
{ Ad1;*p;
Bd2;
p=&d2;
d1,print();
d2,print();
p->print();
show(d1);
show(d2);
return 0;}
参考答案
更多 “ 下列程序的输出结果是 ( )#includeusing namespace std;class A{int apublic:A():a(9){}virtual void print() const {cout};class B:public A{char b;public:B(){b= ‘S’;}void print()const{cout};void show(AaX){X,print()}int main(){ Ad1;*p;Bd2;p=d2;d1,print();d2,print();p-print();show(d1);show(d2);return 0;} ” 相关考题
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