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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 i public： base2{cout<<”2”；} }； class derived：public basel，public base2{ public： derived{cout<<”3”；} }； void main derived obj； cout<<endl：
A.0123
B.3120
C.0312
D.3012
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更多 “ 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 ” 相关考题
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有以下程序: included using namespace std; class Base { public: Base( ) { x=0; }
有以下程序：included＜iostream＞using namespace std;class Base{public:Base( ){x=0;}int x;};class Derived1:virtual public Base{public:Derived1( ){x=10;}};class Derived2:virtual public Base{public:Derived2( ){x=20;}};class Derived: public Derived1,protected Derived2{ };int main( ){Derived obj;cout＜＜obj. x＜＜endl;return 0;}该程序运行后的输出结果是______。
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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
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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
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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
考题
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(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
考题
已知如下类定义: class Base { public Base (){ ／／... } public Base ( int m ){ ／／... } protected void fun( int n ){ ／／... } } public class Child extends Base{ ／／ member methods } 如下哪句可以正确地加入子类中?()
A.private void fun( int n ){ //...}B.void fun ( int n ){ //... }C.protected void fun ( int n ) { //... }D.public void fun ( int n ) { //... }
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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
考题
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
考题
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
考题
若有以下程序:include using namespace std;class Base{public: Base ( ) {x=0; } in
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考题
有如下程序:includeusing namespace std;class BASE{public:~BASE( ){cout
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下列程序的运行结果是______。include class Base { public: void f(int x){cout
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考题
下面程序的输出结果是【】。include using namespace std; class base { protected: int
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考题
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______。
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下面程序的运行结果是includeclass base{protected:int a;public:base( ){cout
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若有以下程序:include using namespace std; class Base public: Base() { x=0;} in
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考题
若有以下程序:include using namespace std;class A{protected: int a;public: A() {
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下面程序运行的结果是()。includeusing namespace std;class A{ protected:int a; pub
下面程序运行的结果是( )。 #include＜iostream＞ using namespace std； class A{ protected: int a; public: void input(int i) {a=i;} }; class B{ protected: int a; public: void input(int j) {a=j;} }; class C: public A, public B { int x; public: void input() {x=A::a * B::a;cout＜＜x＜＜endl;} }; void main() { C c; c.A::input(5); c.B::input(8); c.input(); }A．5B．8C．40D．编译出错
考题
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
考题
若有以下程序: include using namespace std;class Base{public:Base ( ){x=0;}int x
若有以下程序：# include ＜iostream＞using namespace std;class Base{public: Base ( ) { x=0; } int x;};class Derived1 : virtual public Base{public: Derived1 ( ) { x=10; }}; class Derived2 : virtual public Base{public: 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．10B．20C．30D．0
考题
若有以下程序:includeusingnamespacestd;classBase{public: Base() {x=0; } intx;};
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．10B．20C．30D．0
考题
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
考题
有如下程序： #includeiostroam using namespace std； class Base{ protected： Base{cout’A’；} Base(char C）{coutc；} }； class Derived：public Base{ public： Derived(char C）{toutC；} }； int main{ Derived dl(’B’)； retum 0； } 执行这个程序的输出结果是（ ）。A.BB.BAC.ABD.BB
考题
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
考题
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);}
考题
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;}
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