有如下程序: include using namespace std; class ONE { public: virtual void f() { 有如下程序:include <iostream>using namespace std;class ONE{public:virtual void f() { cout << "1"; }};class TWO: public ONE{public:TWO() { cout << "2"; }};class THREE: public TWO{public:virtual void f() {TWO::f(); cout << "3"; }};int main(){ONE aa, *p;TWO bb;THREE cc;p=cc;P->f();return 0;}执行上面程序的输出是【 】。
有如下程序: include using namespace std; class ONE { public: virtual void f() {
有如下程序:
include <iostream>
using namespace std;
class ONE
{
public:
virtual void f() { cout << "1"; }
};
class TWO: public ONE
{
public:
TWO() { cout << "2"; }
};
class THREE: public TWO
{
public:
virtual void f() {TWO::f(); cout << "3"; }
};
int main()
{
ONE aa, *p;
TWO bb;
THREE cc;
p=&cc;
P->f();
return 0;
}
执行上面程序的输出是【 】。
相关考题:
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