下面程序的输出结果是()。include using namespace std;class A {public:A( ) {cout 下面程序的输出结果是( )。 #include <iostream> using namespace std; class A { public: A( ) {cout<<"A";} } class B { public: B() {coat<<"B" ;} } class C: public A { public: B b; C() {cout<<"C";} } void mian(){ C c; }A.CBAB.ABCC.ACBD.BCA
下面程序的输出结果是()。include using namespace std;class A {public:A( ) {cout<<
下面程序的输出结果是( )。 #include <iostream> using namespace std; class A { public: A( ) {cout<<"A";} } class B { public: B() {coat<<"B" ;} } class C: public A { public: B b; C() {cout<<"C";} } void mian(){ C c; }
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下面程序的结果是includeclass A{public:A( ){cout 下面程序的结果是 #include<iostream.h> class A { public: A( ) {cout<<"construtA"<<endl;} virtual~A( ) {cout<<"destructA"<<endl;}}; class B:public A {}; class C:public A {}; cA.constructA destructAB.constructA constructA destructA destructAC.constructA constructA constructA destructA destructA destructAD.constructA onstructA constructA constructA destructA destructA destructA destructA
下面程序的输出结果是includeclass A{public: A( ) {cout 下面程序的输出结果是 #include<iostream.h> class A { public: A( ) {cout < < "construtA" < < endl;} Virtual~A( ) {cout < < "destructA" < < endl;}}; class B: public A { }; class C:public A { }; class D:public B,public C { }; void main( ) { D d;}A.constructAB.constructAC.constructAD.constructA destructA constructA constructA constructA destructA constructA constrnctA destructA destructA constructA destructA destructA destructA destrctA destructA destructA
如下程序的输出结果是includeusing namespace std;class A{public:A( ){cout 如下程序的输出结果是 #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;}A.CBAB.BACC.ACBD.ABC
下面程序的输出结果是【】。include using namespace std; class base { protected: int 下面程序的输出结果是【 】。include <iostream>using namespace std;class base{protected:int a;public:base(){cout<<"0":}};class basel: virtual public base{public:base1(){ cout<<"1";}};class base2 : virtual public base{public:base2(){cout<<"2";}};class derived : public base1,public base2{public:derived () {cout<<"3"; }}int main (){derived obj;cout<<end1;return 0;}
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 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______。
下面程序输出的结果是【 】。 include using namespace std; class A { public:virtual 下面程序输出的结果是【 】。include <iostream>using namespace std;class A {public:virtual void show() {cout<<"A!";};class B: public A {public:void show() {cout << "B!";}};class C: public B{public:void show(){cout << "C!";}};void show_info(A i) {i. show();}void main() {A ia; B ib; C ic; show_info(ia);show_info(ib); show_info(ic); }
下面程序的输出结果是includeclass example{ int a;public: example(int b) {a=b++ 下面程序的输出结果是 #include<iostream,h> class example { int a; public: example(int b) {a=b++;} void print( ){a=a+1;cout<<a<<"";} void print( )const{cout<<a<<"";} }; void main( ) { example X(3);A.22B.43C.42D.32
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