考题
在下面程序的横线处填上适当的语句,使程序执行后的输出结果为ABCD。 include using nam
在下面程序的横线处填上适当的语句,使程序执行后的输出结果为ABCD。include<iostream>using namespace std;classA{public:A(){cout<<'A';}};class B:______{public:B(){cout<<'B';}};class C:______{public:C(){cout<<'C';}};class D:public B,public C{public:D(){cout<<'D';}};void main(){D obj;)
考题
下面程序运行时输出结果为______。 include include class Rect { public: Rect(int
下面程序运行时输出结果为______。include<iostream.h>includeclass Rect{public:Rect(int l, int w){length=l; width=w;)void Print(){cout<<"Area:"<<length*width<<end1;}void operator delete(void*p){free(p);}private:int length, width;};void main(){Rect *p;p=new Rect(5, 4);p->Print();delete p;}
考题
以下程序的执行结果为______。include using namespace std; class base { public: vir
以下程序的执行结果为______。include<iostream>using namespace std;class base{public:virtual void who(){cout<<"base class"<<endl;}};class derivel:public base{public:void who(){cout<<"d
考题
下列程序的运行结果是【 】。 include class SomeClass { public: SomeClass(int va
下列程序的运行结果是【 】。include <iostream. h>class SomeClass{public:SomeClass(int value) { some_value=value;};void show_data(void) { cout<<data<<"<<~some_value<<endl; };static void set_data(int value) {data=value; }private:static int data;int some_value};int SomeClass::datavoid main(void){SomeClass my_class(1001),your_class(2002);your_class. set_data(4004);my_elass. show_data()}
考题
下面程序运行时输出结果为【】。 include include class Rect { public: Rec
下面程序运行时输出结果为【 】。include<iostream.h>include<malloc.h>class Rect{public:Rect(int1,int w)(length=1;width=w;)void Print(){cout<<"Area:"<<length *width<<endl;)void *operator new(size-t size){return malloc(size);}void operator delete(void *p){free(p)private:int length,width;};void main(){Rect*p;p=new Rect(5,4);p->Print();delete p;}
考题
在下面程序的横线处填上适当的内容,使程序执行后的输出结果为ABCD。 include usingn
在下面程序的横线处填上适当的内容,使程序执行后的输出结果为ABCD。include <iostream.h>using namespace std;class A{public: A() {cout<<'A';};class B:______{public: B() {cout<<'B';}};class C:______{public: C(} cout<<'C';}};class D:public B, public C{public: D(){cout<<'D';}};void main(){D obj;}
考题
下面程序执行的结果是【 】 include using namespace std; class A{ public: static in
下面程序执行的结果是【 】include<iostream>using namespace std;class A{public:static int x;A(inty){cout<<x+y;}};int A::x=2;void main(){A a(5);}
考题
下面程序的运行结果为includeclass A{ int num;public: A(int){num=i;} A(ABm){num
下面程序的运行结果为 #include<iostream.h> class A { int num; public: A(int){num=i;} A(ABm){num=a.num++;} void print(){cout<<num;} }; void main() { Aa(1),b(a); a.print(); b.print(); }A.11B.12C.21D.22
考题
以下程序的执行结果为______。include class A {public:A(){cout
以下程序的执行结果为______。include<iostream.h>class A{public:A(){cout<<“a”;}~A(){cout<<“b”;}};class B:public A{public:B(){cout<<“c”;)~B(){cout<<“d”;}};void main(){B b;}
考题
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;}