有如下程序：#includeusing namespace std;class ONE{public:virtual void f(){cout"l";}};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 【 11 】 。
有如下程序：
#include
using namespace std;
class ONE
{
public:
virtual void f(){cout<<"l";}
};
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 【 11 】 。
相关考题：
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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【 】。
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请将如下程序补充完整,使得输出结果为:bbaa。 include using naluespace std; class 请将如下程序补充完整，使得输出结果为：bbaa。include＜iostream＞using naluespace std；class A{public：______{eout＜＜"aa"；}}；class B：public A{public：～B( ){eont＜＜"bb"；}}；int ulain( ){B*P=new B；delete P；return 0；}
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