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.BASE
B.DERIVED
C.BASEDERIVED
D.DERIVEDBASE
第1题:
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
第2题:
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.BASE
B.DERIVED
C.BASEDERIVED
D.DERIVEDBASE
第3题:
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.BASE
B.DERIVED
C.BASEDERIVED
D.DERIVEDBASE
第4题:
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.XY
B.YX
C.X
D.Y
第5题:
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.B
B.BA
C.AB
D.BB