( 13 )有如下程序:#include iostreamusing namespace std;class GrandChild{public:GrandChild(){ strcpy (name,"Unknown"); }const char * getName()const { return name; }virtual char * getAddress()const=0;private:char name[20];};class GrandSon : public GrandChild{public:GrandSon{char *name} {}Char * getAddress() const { return "Shanghai";}};int main(){GrandChild *gs=new GrandSon("Feifei");coutgs-getName()" 住在 "gs-getAddress()endl;delete gs;return 0;}运行时的输出结果是 【 13 】 。
( 13 )有如下程序:
#include <iostream>
using namespace std;
class GrandChild{
public:
GrandChild(){ strcpy (name,"Unknown"); }
const char * getName()const { return name; }
virtual char * getAddress()const=0;
private:
char name[20];
};
class GrandSon : public GrandChild{
public:
GrandSon{char *name} {}
Char * getAddress() const { return "Shanghai";}
};
int main(){
GrandChild *gs=new GrandSon("Feifei");
cout<<gs->getName()<<" 住在 "<<gs->getAddress()<<endl;
delete gs;
return 0;
}
运行时的输出结果是 【 13 】 。
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