有如下程序: #includeiostream using namespace std; class A { public: A{cout”A”;} -A{cout”-A”;} }; class B:public A { A*P; public: B{cout”B”;P=new A;} -B{cout”~B”;delete p;} }; int main { B obj; return 0; } 执行这个程序的输出结果是( )。A.BAA~A~B~AB.ABA~B~A~AC.BAA~B~A~AD.ABA~A~B~A

有如下程序: #include<iostream> using namespace std; class A { public: A{cout<<”A”;} -A{cout<<”-A”;} }; class B:public A { A*P; public: B{cout<<”B”;P=new A;} -B{cout<<”~B”;delete p;} }; int main { B obj; return 0; } 执行这个程序的输出结果是( )。

A.BAA~A~B~A

B.ABA~B~A~A

C.BAA~B~A~A

D.ABA~A~B~A


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有如下程序 include using namespace std; class Base { protected: 有如下程序 #include <iostream> using namespace std; class Base { protected: Base( ){cout<<'A'; } Base(char c) { cout<<c; } }; class Derived: public Base { public: Derived(char c){ cout<<c; } }; int main( ){ Derived d1 ('B'); return 0; } 执行这个程序屏幕上将显示输出A.BB.BAC.ABD.BB

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 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(){B::f();cout<<"3";}};int main(){A aa,*p;B bb;C cc;p=cc;p->f();return 0;}执行上面程序的输出是______。

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

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

有下列程序:include using namespace std; class TestClass1 { public: TestClass1(){ 有下列程序:include<iostream>using namespace std;class TestClass1{public:TestClass1(){cout<<"A";}};class TestClass2<public:TestClass2(){cout<<"B";}};class TestClass3:public TestClass1{TestClass2 b;

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

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:includeusing namespace std;classA{public:A(){cout 有如下程序: #include<iostream> using namespace std; classA { 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.ABCB.BACC.ACBD.CBA

如下程序的输出是includeusing namespace std;class Base{public:Base( ){cout 如下程序的输出是 #include<iostream> using namespace std; class Base{ public: Base( ){cout<<"BB";f( );} void f( ){cout<<"Bf";} }; class Derived:public Base{ public: Derived( ){eout<<"DD";} void f( ){cout<<"Df";} }; int main( ){Derived d;return 0;}A.BBBff)DB.BBDfDDDfC.DDD.DDBBBf

请将如下程序补充完整,使得输出结果为:bbaa include using namespace std; class A { 请将如下程序补充完整,使得输出结果为:bbaainclude <iostream>using namespace std;class A {public:【 】{cout << "aa"; }};class B: public A{public:~B(){ cout << "bb"; }};int main () {B *p= new B;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

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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

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______。

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";} ~A(){cout<<"~A";) }; class B:public A { A*p; public: B(){cout<<"B";p=new A;} ~B(){cout<<"~B";delete p;} }; int main() { B obj; return 0; } 执行这个程序的输出结果是( )。A.BAA~A~B~AB.ABA~B~A~AC.BAA~B~A~AD.ABA~A~B~A

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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

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