爱德万C++笔试题

aFakeProgramer

于 2019-10-26 21:25:39 发布

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#include <iostream>
using namespace std;
class Base{
	public:
	virtual void f(float x){cout<<"Base::f(float)"<<x<<endl;}
	void g(float x){cout<<"Base::g"<<x<<endl;}
	void h(float x){cout<<"Base::h"<<x<<endl;}
};
class De:public Base{
public:
	virtual void f(float x){cout<<"De::f(float)"<<x<<endl;}
	void g(float x){cout<<"De::g"<<x<<endl;}
	void h(float x){cout<<"De::h"<<x<<endl;}
};
int main()
{
 De d;
	Base *pBase=&d;
	De *pDer=&d;
	pBase->f(3.14f);
	pDer->f(3.14f);
	
	pBase->g(3.14f);
	pDer->g(3.14f);
	pBase->h(3.14f);
	pDer->h(3.14f);
   return 0;
}

De: