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{protected:Base(){cout<<'Base';

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.Derived

B.DerivedBase

C.BaseDerived

D.DerivedDerived


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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

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:~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

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

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{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

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