下面程序的运行结果是includeclass base{protected: int a;public: base(){cout 下面程序的运行结果是 #include＜iostream．h＞ class base{ protected： int a； public: base(){cout ＜＜"0"；} }； class basel：virtual base{ public： basel () {cout ＜＜"1"；} }； class base2：virtual base{ public： base2(){cout ＜＜"2"；} }； class derived：public basel，public base2{ public： derived(){cout ＜＜"3"；} }； void main() { derived obj； cout ＜＜end1； }A．123B．3120C．312D．3012
下面程序的运行结果是includeclass base{protected: int a;public: base(){cout <<
下面程序的运行结果是 #include＜iostream．h＞ class base{ protected： int a； public: base(){cout ＜＜"0"；} }； class basel：virtual base{ public： basel () {cout ＜＜"1"；} }； class base2：virtual base{ public： base2(){cout ＜＜"2"；} }； class derived：public basel，public base2{ public： derived(){cout ＜＜"3"；} }； void main() { derived obj； cout ＜＜end1； }
A．123
B．3120
C．312
D．3012
相关考题：
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
下面程序的运行结果是#includeclass base{protected：int a;public：base（）{ cout ”0”;}class basel：virtual base}public：base 1（）{cout ”1”;}};class base2：virtual base{public：base2（）{cout ”2”;（};class derived：public base1，public base2{public：derived（）{cout ”3”;}};void main（）{derived obj;cout }A．0123B．3120C．0312D．3012
下面程序的运行结果是 include class base{ protected: int a; public: base( ) {c 下面程序的运行结果是#include＜iostream.h＞class base{protected:int a;public:base( ) {cout ＜ ＜ "0";}};class base l: virtual base{public:base l ( ) {cout ＜ ＜"1";}};class base 2: virtual base{public:base2 ( ) {cout ＜ ＜"2";}};class derived: public base 1, public base2{public:derived( ) {cout ＜ ＜ "3";}};void main( ){derive obj;cout ＜ ＜ endl;}A．0123B．3120C．0312D．3012
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
下面程序的输出结果为:Base:: fun,请将程序补充完整。include class Base{public: 【】 下面程序的输出结果为：Base:: fun，请将程序补充完整。include ＜iostream.h＞class Base{public:【 】 fun(){cout＜＜"Base::fun"＜＜end1:}class Derived : public Base{public:【 】 fun(){ cout＜＜"Derived::fun"＜＜end1; }};int main(){Base a,*pb;Derived b;pb = b;pb-＞fun();return 0;}
下面程序的运行结果是()。includeclass base{protected:int a;public:base(){cout 下面程序的运行结果是( )。 #include＜iostream.h＞ class base{ protected： int a； public： base(){cout＜＜“0”；} }； Class basel：Virtual base{ public： basel(){cout＜＜“1”；} }； Class base2：virtual base{ public： base2(){cout＜＜“2”；)A．0123B．3120C．0312D．3012
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;class Base{protected:Base(){cout 有如下程序： #include＜iostream＞ using namespace std; class Base{ protected: Base(){cout＜＜'Base';} Base(char c){cout＜＜c;} }; class Derived:public Base{ public: Derived(char c){cout＜＜c;} }; int main(){ Derived d('Derived'); return 0; } 执行这个程序屏幕上将显示输出( )。A．DerivedB．DerivedBaseC．BaseDerivedD．DerivedDerived
有如下程序:includeusing namespace std;class Base{public:Base(int x=0){cout 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．01D．001
若有以下程序:include using namespace std;class Base{public: Base ( ) {x=0; } in 若有以下程序： #include ＜iostream＞ using namespace std; class Base { public: Base ( ) { x=0; } int x; }; class Derivedl : virtual public Base { public: Derivedl () { x=10; } }; class Derived2 : virtual public Base { public: Derived2 () { x=20; } }; class Derived : public Derivedl,protected Derived2{ }; int main ( ) { Derived obj; cout＜＜obj .x＜＜end1; return 0; } 该程序运行后的输出结果是 ( )。A．20B．30C．10D．0
有如下程序:include using 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(); } voidf(){cout ＜＜"Bf"; } }; class Derived: public Base { public: Derived (){cout＜＜"DD";} void f(){cout＜＜"Df";} }; int main(){Derived d; return 0;} 执行上面的程序将输出A．BBBfDDB．BBDfDDDfC．DDD．DDBBBf
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
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
下列程序的运行结果是______。include class Base { public: void f(int x){cout 下列程序的运行结果是______。include＜iostream.h＞class Base{public：void f(int x){cout＜＜“Base：”＜＜x＜＜endl；})；class Derived：public Base{public：void f(char*str){cout＜＜“Derived：”＜＜str＜＜endl；}}；void main(void){Base*pd＝ne
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;}
有以下程序 include using namespace std; class Base { int a; public: Base(int x) 有以下程序include ＜iostream＞using namespace std;class Base{int a;public:Base(int x){ a=x; }void show(){ cout＜＜a; }class Derived : public Base{int b;public:Derived(int i) :Base(i+1),b(i){}void show() { cout＜＜b;};int main (){Base b(5),*pb;Derived d(1);pb=d;pb-＞show ();return 0;}运行后的打印结果是______。
下面程序的运行结果是includeclass base{protected:int a;public:base( ){cout 下面程序的运行结果是 #include＜iostream.h＞ class base{ protected： int a； public： base( ){cout＜＜"0"；} }； class basel：virtual base { public： base1( ){cout＜＜"1"；} }； class base2：virtual base{ public：A．123B．3120C．312D．3012
下面程序的打印结果是【】。 include using namespace std; class Base { public:Base(i 下面程序的打印结果是【 】。include ＜iostream＞using namespace std;class Base{public:Base(int x){a=x;}void show(){cout＜＜a;}private:int a;};class Derived : public Base{public:Derived(int i) :Base(i+1) ,b(i) { }void show(){cout＜＜b;}private:int b;};int main ( ){Base b(5) , *pb;Derived d(1);pb=d;pb-＞show();return 0;}
若有以下程序:include using namespace std; class Base public: Base() { x=0;} in 若有以下程序： #include ＜iostream＞ using namespace std; class Base public: Base() { x=0; } int x; }; class Derivedl: virtual public Base public: Derived1() { x=10; } }; class Derived2: virtual public Base publici Derived2() x=20; }; class Derived :public Derived1,protected Derived2 {}; int main() Derived obj; cout＜＜obj.x＜＜end1; return 0; } 该程序运行后的输出结果是A．20B．30C．10D．0
以下程序执行结果是 ( )。include class Base{public virtual void fun() {cout 以下程序执行结果是 ( )。 #include ＜iostream.h＞ class Base { public virtual void fun() { cout＜＜"B"; } }; class Derived { public: Derived() { cout＜＜"D"; } virtual void fun(){ Base::fun(); cout＜＜"C"; } } int main () { Base *ptr; Derived obj; ptr=obj; p-＞fun ( ); return 0; }A．DBCB．DCBC．BDCD．CBD
若有以下程序:include using namespace std;class Base {public:Base() { x=0; } int 若有以下程序： #include ＜iostream＞ using namespace std; class Base { public: Base() { x=0; } int x; }; class Derivedl: virtual public Base { public: Derivedl() { x=10; } }; class Derived2: virtual public Base { public: Derived2() ( x=20; } }; class Derived: public Derivedl,protected Derived2 { }; int main() { Derived obj; cout＜＜obj.x＜＜end1; return 0; } 该程序运行后的输出结果是A．20B．30C．10D．0
有如下程序includeusing namespace std;class Base{protected:Base(){cout 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 dl('B')； return 0； } 执行这个程序屏幕上将显示输出( )。A．BB．BAC．ABD．BB
下面程序的运行结果是( )。 #includeiostream．h class base{ protected： int a； public： base{cout”0”；} }； class basel：virtual base{ public： basel{cout”1”；} }； class base2：virtual base i public： base2{cout”2”；} }； class derived：public basel，public base2{ public： derived{cout”3”；} }； void main derived obj； coutendl：A.0123B.3120C.0312D.3012
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;} 执行后的输出结果是( )。A．BASEB．DERIVEDC．BASEDERIVEDD．DERIVEDBASE
下列程序的运行结果是______。 include class Base { public: virtual void func(int 下列程序的运行结果是______。include＜iostream.h＞class Base{public:virtual void func(int i){cout＜＜"class Base:"＜＜i＜＜end1;)};class Derived: public Base{public:void func(double d){cout＜＜"class Derived:"＜＜d＜＜endl;}};void main( ){Base a,*p=a;Derived b;p=b;(*p).func(3.3);}
下列程序的输出结果是______。 include class base { int x,y; public: base(int i,i 下列程序的输出结果是______。include＜iostream.h＞class base{int x,y;public:base(int i,int j){x=i;y=j;}virtual int add( ){return x+y;}};class three:public base{int z;public:three(int i,int j,int k):base(i,j){z=k;)int add( ){return(base::add( )+z);}};void main( ){three*q=new three(10,20,30);cout＜＜q-＞add( )＜＜endl;}