有如下程序:
include <iostream>
using namespace std;
class PARENT
{
public:
PARENT() { cout <<"PARENT"; }
};
class SON : public PARENT
SON() {cout << "SON"; }
int main()
SON son;
PARENT *p;
p = &son;
return 0;
}
执行上面程序的输出是______。
有如下程序:#includeusing namespace std;class PARENT{public:PARENT(){cout<<"PARENT";}};class SON:public PARENT{public:SON(){cout<<"SON";}};int main(){SON son;PARENT *p;p = &son;return 0;}执行上面程序的输出是 【 12 】 。
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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
若有如下程序:includeusing namespace std;class TestClass{public:void who(){cout若有如下程序: #include<iostream> using namespace std; class TestClass { public: void who(){cout<<“TestClass”<<endl;} }; class TestClassl:public TestClass { public: void who(){cout<<“TestClassl”<<endl; int main() { TestCA.TestClasslB.TestClassC.0D.无输出
有如下程序:includeusing namespace std;classA{public:A(){cout有如下程序: #include<iostream> using namespace std; classA { public: A(){cout<<"A";} }; class B{public:B(){cout<<"B";}}; class C:public A { B b; public: C(){cout<<"C";} }; int main(){C obj;return 0;} 执行后的输出结果是( )A.ABCB.BACC.ACBD.CBA
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
有如下程序:includeusing namespace std;class A{public:A(){cout有如下程序: #include<iostream> using namespace std; class A { public: A(){cout<<"A";} }; class B{public:B(){cout<<"B";} }; class C:public A { B b; public:C(){cout<<"C";} }; int main() { C obj; return 0; } 执行后的输出结果是( )。A.CBAB. BACC.ACBD.ABC
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