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以下程序执行结果是 ( )。include class Base{public virtual void fun() {cout<<"B
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.DBC
B.DCB
C.BDC
D.CBD
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更多 “ 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 ” 相关考题
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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
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下面程序的输出结果为:Base:: fun,请将程序补充完整。include class Base{public: 【】
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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
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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: base1( ){cout<<"1";} }; class base2:virtual base{ public:A.123B.3120C.312D.3012
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