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有如下程序: include using namespaee std;class Animal{ public: virtual char*g
有如下程序:
include<iostream>
using namespaee std;c lass Animal{
public:
virtual char*getType( )const{return"Animal";}
virtual char*getVoice( )const{return"Voice";}
};
class Dog:public Animal{
public:
char*getType( )const{return"Dog";}
char*getVoice( )eonst{return"Woof";}
};
void type(Animal&A) {cout<<a.getType( );}
void speak(Animal A) {eout<<a.getVoice( );}
int main( ){
Dog d;type(D) ;cout<<"speak";speak(D) ;cout< return 0;
}
程序的输出结果是______。
参考答案
更多 “ 有如下程序: include using namespaee std;class Animal{ public: virtual char*g 有如下程序:include<iostream>using namespaee std;c lass Animal{public:virtual char*getType( )const{return"Animal";}virtual char*getVoice( )const{return"Voice";}};class Dog:public Animal{public:char*getType( )const{return"Dog";}char*getVoice( )eonst{return"Woof";}};void type(AnimalA) {cout<<a.getType( );}void speak(Animal A) {eout<<a.getVoice( );}int main( ){Dog d;type(D) ;cout<<"speak";speak(D) ;cout return 0;}程序的输出结果是______。 ” 相关考题
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阅读下列说明和C++代码,填写程序中的空(1)~(6),将解答写入答题纸的对应栏内。
【说明】
以下C++代码实现一个简单绘图工具,绘制不同形状以及不同颜色的图形。部分类及其关系如图6-1所示。
【C++代码】
#include?#include?using?namespace?std;class?DrawCircle?{??????//绘制圆形,抽象类? ? ? public: (1);//定义参数为?int?radius,?int?x,?inty? ?virtual~DrawCircle()?{?}};class?RedCircle:public?DrawCircle?{????//绘制红色圆形? ? ? ? public: void?drawCircle(intradius,?int?x,?int?y)?{cout??drawCircle?=?drawCircle;? }? ?virtual~shape()?{?}? public:? ?virtual?void?draw()?=?0;};class?Circle:public?Shape?{????//圆形? ? private:? ? ?int?x,y,radius;? ? public:? Circle(int?x,inty,int?radius,DrawCircle?*drawCircle)? (3)? {? this->x?=?x;? ?this->y?=?y;? ? this->radius?=?radius; }? ? ? public:? void?draw(){? drawCircle?-> (4); }};int?main(){Shape?*redCirclenew?Circle(100,100,10,????(5)????);//绘制红色圆形? Shape?*greenCircle=new?Circle(100,100,10, (6)??);//绘制绿色圆形redCircle >draw();? ?greenCircle?->draw();? ?return?0;}
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