有如下程序: nclude using namespace std; class Stack{

有如下程序： #nclude＜iostremn＞ using namespace std; class Stack{ public: Stack(unsigned n=10:size(n){rep_=new int[size];top=O;} Stack(Stack&s):size(s.size) { rep_=new int[size]; for(int i=0;i＜size;i++)rep_[i]=s.rep_[i]; top=s.top; } ～Stack(){delete[]rep_;} void push(int a){rep_[top]=a; top++;} int opo(){--top;return rep_[top];} bool is Empty()const{return top==O;} pavate: int*rep_; unsigned size,top; }; int main() { Stack s1; for(int i=1;i＜5;i++) s1.push(i); Stack s2(s1); for(i=1;i＜3;i++) cout＜＜s2.pop()＜＜','; s2.push(6); s1.push(7); while(!s2.isEmpty()) cout＜＜s2.pop()＜＜','; return 0； } 执行上面程序的输出是

A．4，3，2，1

B．4，3，6，7，2，1

C．4，3，6，2，1

D．1，2，3，4

[单选题]有如下程序: nclude using namespace Std; Class MyClass{ public:有如下程序： #nclude＜iostream＞ using namespace Std； Class MyClass{ public： MyClass(int i=0){cout＜＜1;} MyClass(constMyClass&x){cout＜＜2；} MyClass& perator=(const MyClass&x){cout＜＜3；return*t

[单选题]有如下程序:nclude using namespace std;class Base{public:void fun1() {cout << "B有如下程序:#nclude ＜iostream＞using namespace std;class Base{ public:void fun1() {cout ＜＜ "Base/n"; }virtual void fun2() {cout ＜＜ "Base/n"; }};class Derived: public Base{ public

[试题]有如下程序: include using namespace std; class TestClass{ int k; public: TestCla有如下程序:include＜iostream＞using namespace std;class TestClass{int k;public:TestClass(int x=1):k(x){}～TestClass O{cout＜＜k;}};int main(){TestClass a[]={TestClass(3),TestClass(3),Tes

[试题]有如下程序: include using namespace std; class Monitor{ public: Monitor(cha有如下程序：include＜iostream＞using namespace std；class Monitor{public：Monitor(char t)：type(t){ }void Print( )const{cout＜＜"The type of monitor is"＜＜type< private：char type；}；class Com

[试题]有如下程序: include using namespace std; class A { public: virtual void f(){cout有如下程序：include＜iostream＞using namespace std;class A{public:virtual void f(){cout＜＜"1";}};class B:public A{public:B． (){cout＜＜"2";}};class C:public B{public:virtual void f(){

[单选题]有如下程序: include using namespace std;class Test {public: Test() {n£«=2;} ~Tes有如下程序： #include ＜iostream＞ using namespace std; class Test { public: Test() {n+=2;} ～Test() {n-=3;} static int getNum(){retum n;} private: static int n; }; int Test:: n=1; int

[单选题]有如下程序:include using namespace std;using namespace std;class Base{public:vo有如下程序： #include ＜iostream＞ using namespace std； using namespace std； class Base{ public： void fun( ){cout＜＜"Base::fun"＜＜endl：} }； class Derived：public Base{ public： void fun(

[单选题]有如下程序: include using namespace std; int main() { char st有如下程序： #include ＜iostream＞ using namespace std; int main() { char str[100], *p; cout＜＜"Please input a string:"; cin＞＞str; p=str; for (int i=0; *p!='/0'; p++,i++); cout＜＜i＜＜endl; return 0; }

[单选题]有如下程序：#include +using namespace std ；#includeusing namespace std;class Base{public:void fun(){cout<<"Base::fun"<};class Derived:public Base{public:void fun(){cout<<"Derived::fun"<}};int main(){D．erived d;d.fun();return 0;}已知其执行后

[单选题]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;}