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有如下程序:include using namespace std;class Base{public:Base(){ cout<<"BB";f()
有如下程序： #include ＜iostream＞ using namespace std; class Base { public: Base(){ cout＜＜"BB";f(); } void f() { 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．BBBfDD
B．BBDfDDDf
C．DD
D．DDBBBf
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更多 “ 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＜＜"BB";f(); } void f() { 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 ” 相关考题
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
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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
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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
考题
若有以下程序:include using namespace std;class Base{public: void who(){cout
若有以下程序:include ＜iostream＞using namespace std;class Base{public:void who(){cout＜＜" Base"＜＜end1:}};class Derived1: public Base{public:void who(){ cout＜＜"Derived"＜＜end1;}};int main(){Base *p;Derived1 obj1;p=obj1;p-＞who();return 0;}则该程序运行后的输出结果是【 】。
考题
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
考题
有以下程序:include using namespace std;class Base{public: Base(){} virtual void
有以下程序： #include ＜iostream＞ using namespace std; class Base { public: Base(){} virtual void f1() { cout＜＜"f1 of base"＜＜end1; } ～Base(){} }; class Derive: public Base { public: void fl(int x) { cout＜＜"f1 of derive"＜＜end1; } }; int main ( ) { Base *p; Derive obj1; p=obj 1; p-＞f1 ( ); return 0; }A．编译时出错B．f1 of deriveC．f1 of baseD．以上答案都不对
考题
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＜＜"BB"; f(); } Void f(){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
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(){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
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
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
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
有如下程序:includeusing namespace std;class Base{public:void output( ){cout
有如下程序： #include＜iostream＞ using namespace std； class Base{ public： void output( ){cout＜＜l；} virtual void Print( ){cout＜＜'B'；} }； class Derived：public Base{ public： void output( ){cout＜＜1；} void Print( ){cout＜＜'D'；} }； int main( ){ Base*prt=new Derived； prt-＞output( )； prt-＞Print( )； delete prt； return 0； } 程序的输出结果是A．1BB．1DC．2BD．2D
考题
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
考题
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
考题
有如下程序:include using namespace std;class Base{ public: void fun() { cout
有如下程序： #include ＜iostream＞ using namespace std; class Base { public: void fun() { cout＜＜"Base::fun"＜＜endl; } }; class Derived : public Base { public: void fun() { ______ cout＜＜"Derived::fun"＜＜endl; } }; int main() { Derived d; d.fun(); return 0; } 已知其执行后的输出结果为： Base::fun Derived::fun 则程序中下划线处应填入的语句是( )。A．Base.fun();B．Base::fun();C．Base-＞fun();D．fun();
考题
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
考题
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;}
考题
执行如下程序将输出():includeusing namespace std;class Base{public:Base(){cout
执行如下程序将输出( ): #include＜iostream＞ using namespace std; class Base { public: Base(){cout＜＜"BB";fun();} void fun (){tout＜＜"Brim";} }; class Derived:public Base { public: Derived(){cout＜＜"DD";} void fun (){cout＜＜"Dfun";} }; int main(){Derived d;return 0;}A．DDB．BBDfunDDDfunC．BBBfunDDD．DDBBBfun
考题
下列程序的输出结果为2,请将程序补充完整。 include using namespace std; class Base
下列程序的输出结果为2，请将程序补充完整。include＜iostream＞using namespace std；class Base{public：______void fun(){cout＜＜1；}}；class Derived：public Base{public：void fun(){cout＜＜2；}}；int main(){Base*p=new Derived；p-＞fur()；delete p；return 0；}
考题
有如下程序:includeincludeusing namespace std;class BASE{char c;public
有如下程序： #include＜iostream＞#include＜iosream＞ using namespace std； class BASE{ char c； public； BASE(char n)：c(n){} virtual ～ BASE(){cout＜＜c;} }； class DERIVED; public BASE{ char c； public： DERIVED (char n): BASE (n+1)A．XYB．YXC．XD．Y
考题
有如下程序:include using namespace std;class AA{public: virtual void f() {cout
有如下程序: #include ＜iostream＞ using namespace std; class AA { public: virtual void f() { cout＜＜ "AA"; } }; class BB : public AA { public: BB() { cout ＜＜ "BB"; } }; claA．AAB．AABBCCC．BBAABBCCD．BBBBAACC
考题
有如下程序:include using namespace std;class Base{private:charc;public:Base(cha
有如下程序：#include ＜iostream＞using namespace std;class Base{private: char c;public: Base(char n) :c(n){} ～Base() { cout＜＜c; } };class Derived: public Base{private: char c; public: Derived(char n):Base(n+1),c(n) {} ～Derived() { cout＜＜c; }};int main (){ Derived obj ('x'); return 0;}执行上面的程序净输出A．xyB．yxC．xD．y
考题
有下列程序: include using namespace std; class Base { public: Base(){cout
有下列程序： #include＜iosteram.h＞ using namespace std; class Base { public: Base(){cout＜＜"BB"; f(); } void f(){cout＜＜"Bf";} }; class Derived:public Base { public: Derived(){cout＜＜"DA．BBBfDDB．BBDfDDDfC．DDD．DDBBBf
考题
有如下程序:nclude using namespace std;class Base{public:void fun1() {cout
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:void fun1() {cout ＜＜ "Derived\n"; }void fun2() {cout ＜＜ "Derived\n"; }} void f(Base b) { B. fun1(); B. fun2(); }int main(){Derived obj;f(obj);return 0;}A．Base BaseB．Base DerivedC．Derived BaseD．Derived Derived
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: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
考题
请在如下程序中的空格处填写正确的语句: include using namespace std; class Base {
请在如下程序中的空格处填写正确的语句：include ＜iostream＞using namespace std;class Base {public:void fun() {cout＜＜"Base fun"＜＜endl; }};class Derived: public Base {public:void fun() {【 】; //调用基类的函数fun()cout＜＜"Derived fun "＜＜endl;}};
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请在下列程序的横线处填写正确的语句。include using namespace std; class Base{ publ
请在下列程序的横线处填写正确的语句。include＜iostream＞using namespace std;class Base{public:void fun(){cout＜＜"Base fun"＜＜endl;}};class Derivde:public Base{public:void fun(){______∥ 调用基类的函数
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