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有如下程序:include using namespace std;class A {public: A() {cout<<"A";}};class
有如下程序: #include <iostream> using namespace std; class A { public: A() {cout<<"A";} }; class B {public:B() {cout<<"B";}}; class C: public A { Bb; public: C() {cout<<"C";} }; int main() {C obj;return 0;}执行后的输出结果是 ______。
A.CBA
B.BAC
C.ACB
D.ABC
参考答案
更多 “ 有如下程序:include using namespace std;class A {public: A() {cout 有如下程序: #include <iostream> using namespace std; class A { public: A() {cout<<"A";} }; class B {public:B() {cout<<"B";}}; class C: public A { Bb; public: C() {cout<<"C";} }; int main() {C obj;return 0;}执行后的输出结果是 ______。A.CBAB.BACC.ACBD.ABC ” 相关考题
考题
有如下程序:includeusing namespace std;Class Base{public:Base(){cout
有如下程序: #include<iostream.h> using namespace std; Class Base { public: Base(){cout<<“BB”;f();} void{(){cout<<“BF”;} }; class Derived:public Base { public: Derived(){cout<<“DD”;} void f(){cout<<“Df”;) }; int mainA.BBBfDDB.BBDfDDDfC.DDD.DDBBBf
考题
若有如下程序:includeusing namespace std;class TestClass{public:void who(){cout
若有如下程序: #include<iostream> using namespace std; class TestClass { public: void who(){cout<<“TestClass”<<endl;} }; class TestClassl:public TestClass { public: void who(){cout<<“TestClassl”<<endl; int main() { TestCA.TestClasslB.TestClassC.0D.无输出
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
有如下程序:includeusing namespace std;class BASE{public:~BASE( ){cout
有如下程序: #include<iostream> using namespace std; class BASE{ public: ~BASE( ){cout<<"BASE";} }; class DERIVED:public BASE{ public: ~DERIVED( ){cout<<"DERIVED";} }; int main( ){DERIVED x;return 0;} 程序的输出结果是A.BASEB.DERIVEDC.BASEDERIVEDD.DERIVEDBASE
考题
有如下程序: include using namespace std; class PARENT { public: PARENT() { cout
有如下程序:include <iostream>using namespace std;class PARENT{public:PARENT() { cout <<"PARENT"; }};class SON : public PARENT{public:SON() {cout << "SON"; }};int main(){SON son;PARENT *p;p = son;return 0;}执行上面程序的输出是______。
考题
有如下程序:include using namespace std;class AA{public: virtual void f() {cout
有如下程序: #include <iostream> using namespace std; class AA { public: virtual void f() { cout<< "AA"; } }; class BB : public AA { public: BB() { cout << "BB"; } }; claA.AAB.AABBCCC.BBAABBCCD.BBBBAACC
考题
请将如下程序补充完整,使得输出结果为:bbaa。 include using naluespace std; class
请将如下程序补充完整,使得输出结果为:bbaa。include<iostream>using naluespace std;class A{public:______{eout<<"aa";}};class B:public A{public:~B( ){eont<<"bb";}};int ulain( ){B*P=new B;delete P;return 0;}
考题
有如下程序: include using namespaee std; class A{ public: A( ){cout
有如下程序:include<iostream>using namespaee std;class A{public:A( ){cout<<"A";}~A( ){cout<<"A";}};class B{A a;public:B( ){cout<<"B";}~B( )t cout<<"B";}};int main( ){B b;return 0;}程序的输出结果是______。
考题
下面程序的结果是 ______。includeclass A{ public:virtual voidfun()=0{};};class
下面程序的结果是 ______。 #include<iostream.h> class A{ public: virtual void fun()=0{}; }; class B:public A{ public: void fun () {cout<< "new file" ;} }; class C: public A{ public: void fun (){cout<<"open file"<< " " } }; class D: public A{ public: void fun () {cout<< "save file\n" ;} }; void main() { A a,*p; B b; C c; D d; p=c; p->fun (); p=b; p->fun (); p=d; p->fun(); }A.new file open file save fileB.new file new file new fileC.编译出错D.open file new file save file
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;}
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