下列程序段的执行结果为()。includeusing namespace std;class example{int n;public: 下列程序段的执行结果为( )。 #include<iostream> using namespace std; class example{ int n; public: example(int i){n=i;} void add(){s+=n;} static int s; void pr(){ cout<<s<<endl; } }; int example::s=0; int fuc(char *x); int main(){ example x(2),y(3),z(4); x. add(); y. add(); z.pr(); return 0; }A.2B.3C.5D.6
下列程序段的执行结果为()。includeusing namespace std;class example{int n;public:
下列程序段的执行结果为( )。 #include<iostream> using namespace std; class example{ int n; public: example(int i){n=i;} void add(){s+=n;} static int s; void pr(){ cout<<s<<endl; } }; int example::s=0; int fuc(char *x); int main(){ example x(2),y(3),z(4); x. add(); y. add(); z.pr(); return 0; }
A.2
B.3
C.5
D.6
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下面程序运行后输出的结果是【】。 include using namespace std; class example{ const 下面程序运行后输出的结果是【 】。include <iostream>using namespace std;class example{const int m;public:example(int i):m(i){}void pr(){cout<<"m="<<m<<endl'}};int main(){example x(100);x.pr();return 0;}
有如下程序: include using namespace std; class Sample{ public: 有如下程序: #include<iostream> using namespace std; class Sample{ public: Sample()<) ~Sample(){cout<<'*';} }; int main(){ Sample temp[2],*pTemp[2]; return 0; } 执行这个程序输出星号(*)的个数为( )。A.1B.2C.3D.4
有如下程序: include using namespace std; class Base { public: 有如下程序: #include <iostream> using namespace std; class Base { public: Base(int x=0) { cout<<x; } } class Derived: public Base{ public: Derived(int x=0) { cout<<x; } private: Base val; }; int main() { Derived d(1); return 0; }程序的输出结果是A.0B.1C.1D.1
程序的输出结果是【 】。 include using namespace std; class A{ int x; public: A(int 程序的输出结果是【 】。include <iostream>using namespace std;class A{int x;public:A(int x=1):x(x){cout<<x;}};void main(){A a,b(2),c(3);}
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
程序的输出结果是【 】。 include using namespace std; class A{ public: A(){a=b=2;} 程序的输出结果是【 】。include <iostream>using namespace std;class A{public:A(){a=b=2;}A(int i,int j){a=i;b=j;}void display(){cout<<a<<b;}private:int a,b;};void main(){A m,n(4,8);m.display();n.display();}
有如下程序: include using namespace std; class Test { public 有如下程序: #include<iostream> using namespace std; class Test { public: Test(){n+=2;} ~Test(){n-=3;} static int getNum(){return n;} private: static int n; }; int Tesl::n=1 int main() { Test*p=new Test; delete p; cout<<"n="<<Tes::tgetNum()<<endl; return 0; } 执行后的输出结果是A.n=0B.n=1C.n=2D.n=3
有如下程序: include using namespace std; class A { public: 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 { B b; public: C(){cout<<"C";} }; int main(){Cobj;retum 0;} 执行后的输出结果是A.CBAB.BACC.ACBD.ABC
有如下程序: include using namespace std; class BASE { public 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(){DERIVEDx;retum 0;} 执行后的输出结果是A.BASEB.DERIVEDC.BASEDERIVEDD.DERIVEDBASE
有如下程序: include using namespace std; class AA { int n; 有如下程序: #include<iostream> using namespace std; class AA { int n; public: AA(int k);n(k){} intget(){return n;} int get()const{return n+1;} }; int main() { AA a(5); const AA b(6); cout<<a.get()<<b.get(); return 0; } 执行后的输出结果是A.55B.57C.75D.77
下列程序的输出结果为2,请将程序补充完整。 include using namespace std; class Basc 下列程序的输出结果为2,请将程序补充完整。include<iostream>using namespace std;class Basc{public:【 】void fun(){cout<<1;}};class Dcrived:public Base{public:void fun(){cout<<2;}};int main(){Base*p=new Derived;p->fun();delete p;return 0;}
有以下程序:include using namespace std; class Base { public: Base() { K=0; } int 有以下程序:include<iostream>using namespace std;class Base{public:Base(){K=0;}int x;};class Derivedl:virtual public Base{public:Derivedl(){x=10;}};class Derived2:virtua1 public Base
有如下程序:include using 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;} 执行后的输出结果是A.BASEB.DERIVEDC.BASEDERIVEDD.DERIVEDBASE
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
假定有如下程序:include using namespace std;int s =0;class example{ static int n 假定有如下程序: #include <iostream> using namespace std; int s =0; class example{ static int n; public: example(int i){ n=i; } static void add( ){ s+=n; } }; int example::n=0; int main( ){ example a(2),b(5); example::add(); cout<<s<<endl; return 0; }程序运行后输出结果为( )。A.2B.3C.7D.5
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______。
下面程序的输出结果是【】。 include using namespace std; class A {int a,b; public:A 下面程序的输出结果是【 】。include <iostream>using namespace std;class A{int a, b;public:A(){a = b = 0;}A(int aa, int bb ) : a(aA) , b(bB){cout <<"a="<<a<<","<<"b="<<b<<",";}~A(){cout<<"D";};int main ( ){A x, y(2, 3);return 0;}
有如下程序:include using namespace std;class AA {int n;public:AA(int k):n(k) {} 有如下程序:#include <iostream>using namespace std;class AA { int n;public: AA(int k):n(k) {} int get(){return n;} int get()const { return n+1; }};int main(){ AAa(5); const AA b(6); cout<<a. get()<<b. get(); return ();}执行后的输出结果是( )。A.55B.57C.75D.77
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);}
有以下程序:include using namespace std;int s=0;class sample{ static int n;publi 有以下程序: #include <iostream> using namespace std; int s=0; class sample { static int n; public: sample (int i) { n=i; } static void add() { s+=n; } }; int sample::n=0;A.2B.5C.7D.3
有如下程序: include using namespace std; class Sac{ int n; public: Sac():n(4){co 有如下程序:include<iostream>using namespace std;class Sac{int n;public:Sac():n(4){cout<<n;}Sac(int k):n(k){cout<<n;}~Sac(){cont<<n+n;}};int main(){Sac s1,*s2;s2=new Sac(3);delete s2;return 0;}运行时的输出结果是______。
有如下程序:include using namespace std;int s=0;class sample { static int n;publ 有如下程序: #include <iostream> using namespace std; int s=0; class sample { static int n; public: sample(int i) { n=i; } static void add() { s+=n; } };A.2B.5C.7D.3
有以下程序:include using namespace std;class A{public: virtual void show() {cout 有以下程序:include <iostream>using namespace std;class A{public:virtual void show(){cout<<"A";}};class B : public A{public:void show(){cout << "B";}};void display( A * obj ){obj-> show();}int main ( ){A demol;B demo2;display( demol );display( demo2 );return 0;}执行后的输出结果为【 】。
有下列程序:includeUsing namespace std;Class Amount{ int amount;public; Amount(i 有下列程序: #include<iostream> Using namespace std; Class Amount{ int amount; public; Amount(int n=O):amount(n){} Int getAmount()const{return amount;} Amount operator+=(AmountA) {A.*thisB.thisC.amountD.amount
有下列程序:includeusing namespace std;class TestClass{int a;public:TestClass(in 有下列程序: #include<iostream> using namespace std; class TestClass { int a; public: TestClass(int x)<a=x;} void show(){cout<<a;} }; class TestClass1:publicTestClass { int b; public: TestClaA.5B.1C.0D.2
下面程序输出的结果是( )。 include using namespace std; class A{ 下面程序输出的结果是( )。 #include<iostream> using namespace std; class A{ int X; public: A(int x):x(++x){} ~A(){cout<<x;} }; class B:public A{ int y; public: B(int y):A(y),y(y){} ~B(){cout<<y;}; }; void main(){ B b(3); }A.34B.43C.33D.44
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 { B b; public:C(){cout<<"C";} }; int main(){C obj;return 0;} 执行后的输出结果是( )。A.CBAB.BACC.ACBD.ABC