有以下程序:include using namespace std;class sample{private: int x;public: void 有以下程序: #include <iostream> using namespace std; class sample { private: int x; public: void setx(int i) { x=i; } int putx () { return x; } }; int main ( ) { sample *p; sample A[3]; A[0] .setx(5); A[1] .setx (6); A[2] .setx(7); for (int j=0;j<3;j++) { p=A[j]; cout<<p->putx () <<", "; } cout<<end1; return 0; } 执行后执行结果是( )。A.5,6,7,B.5,5,5,C.6,6,6,D.7,7,7,
有以下程序:include using namespace std;class sample{private: int x;public: void
有以下程序: #include <iostream> using namespace std; class sample { private: int x; public: void setx(int i) { x=i; } int putx () { return x; } }; int main ( ) { sample *p; sample A[3]; A[0] .setx(5); A[1] .setx (6); A[2] .setx(7); for (int j=0;j<3;j++) { p=&A[j]; cout<<p->putx () <<", "; } cout<<end1; return 0; } 执行后执行结果是( )。
A.5,6,7,
B.5,5,5,
C.6,6,6,
D.7,7,7,
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有以下程序include using namespace std;class sample{private:int x;public:sample( 有以下程序#include <iostream>using namespace std;class sample{private: int x;public: sample(int a) { x=a; } friend double square(sample s);};double square(sample s){ return s. x*s. x;}int main(){ sample s1(20),s2(30); cout<<square(s2)<<end1; return 0;}执行结果是( )。A.20B.30C.900D.400
以下程序的执行结果是 ( )。include using namespace std;class sample{private: int 以下程序的执行结果是 ( )。 #include <iostream> using namespace std; class sample { private: int x; public: sample (int A) { x=a; } friend double square(sample s); }; double square(sample s) {A.20B.30C.900D.400
有以下程序:includeusing namespace std;class sample{private:int x;public:sample( 有以下程序: #include<iostream> using namespace std; class sample { private: int x; public: sample(int A) { x=a; friend double square(sample s); }; double square(sample s) { return S.X*S.K; } int main() { saA.20B.30C.900D.400
有以下程序include using namespace std; class sample { private: int x; public: 有以下程序 #include <iostream> using namespace std; class sample { private: int x; public: sample(int a) { x=a; } friend double square(sample s); }; double square(sample s) { return s.x*s.x; } int main() { sample s1 (20),s2(30); cout<<square(s2)<<end1; return 0; } 执行结果是A.20B.30C.900D.400
有以下程序:includeusing namespace std;class sample{private:int x;static int y; 有以下程序: #include<iostrearn> using namespace std; class sample { private: int x; static int y; public: sample (int A) ; static void print (sample s); }; sample::sample(int A) { x=a; y+=x; }A.x=10,y=20B.x=20,y=30C.x=30,y=20D.x=30,y=30
有以下程序includeusing namespace std;class sample{private: int x;public: sample 有以下程序 #include<iostream> using namespace std; class sample { private: int x; public: sample(int a) { x=a; } friend double square(sample s); }; double square(sample S) { return s.x*s.x; } int main() { sample s1(20),s2(30); cout<<square(s2)<<endl; return 0; } 执行结果是A.20B.30C.900D.400
有以下程序:includeusing namespace std;Class sample{private:int n;public:sample( 有以下程序: #include<iostream> using namespace std; Class sample { private: int n; public: sample(){} sample(int m) { n=m; } sample add(sample s1,samplc s2) { this-->n=s1.n+s2.n; return(*this); } void disp(A.n=10B.n=5C.n=20D.n=15
有以下程序:include using namespace std;define PI 3.14class Point{ private:int 有以下程序: #include <iostream> using namespace std; #define PI 3.14 class Point { private: int x,y; public: Point(int a,int b) { x=a; y=b; } int getx() { return x; }A.314B.157C.78.5D.153.86
有以下程序:includeusing namespace std;class sample{private:int n; public: sampl 有以下程序: #include<iostream> using namespace std; class sample { private: int n; public: sample(){} sample(int m) { n=m; } sample add(sample s1,sample s2) { this->n=s1.n+s2.n; return(*this); }A.n=10B.n=5C.n=20D.n=15
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;}