下面程序输出的结果是【 】。 include using namespacc std; class A { public:void sho 下面程序输出的结果是【 】。include ＜iostream＞using namespacc std;class A {public:void show(){tout＜＜"A!";}};class B: public A{public:virtual void show(){cout＜＜"B!";}};class C: public B{public:virtual void show(){cout＜＜"C!";}};void show_info(A *i){i-＞show();}void main(){A ia;B ib;C ic;show_info(ia); show_info(ib);show_info(ic);}
下面程序输出的结果是【 】。 include using namespacc std; class A { public:void sho
下面程序输出的结果是【 】。
include ＜iostream＞
using namespacc std;
class A {
public:
void show(){tout＜＜"A!";}
};
class B: public A{
public:
virtual void show(){cout＜＜"B!";}
};
class C: public B{
public:
virtual void show(){cout＜＜"C!";}
};
void show_info(A *i){i-＞show();}
void main(){
A ia;B ib;C ic;show_info(&ia); show_info(&ib);show_info(&ic);
}
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