phpor – 第63页 – PHPor 的Blog

#include<string>
#include<iostream>
using namespace std;

class animal{
	public:
		virtual void say()=0;
		virtual void run() {
			cout << "running" <<endl;
		}
};
class dog:public animal{
	public:
		void say() {
			cout<<"wang wang ..."<<endl;
		}
		virtual void run() {
			cout << "dog running" <<endl;
		}
};
class jinmao:public dog{
	public:
		void say() {
			cout << "I am jinmao, wang wang ..." <<endl;
		}
		void run() {
			cout << "jinmao running" <<endl;
		}
};

void say(animal *a){
	a->say();
}
void run(animal *a){
	a->run();
}
void dog_run(dog *d){
	d->run();
}
int main(){
	say(new dog());
	say(new jinmao());
	run(new dog());
	run(new jinmao());
	dog_run(new jinmao());
	return 0;
}

#include<string>

#include<iostream>

using namespace std;

class animal{

public:

virtual void say()=0;

virtual void run() {

cout << "running" <<endl;

}

};

class dog:public animal{

public:

void say() {

cout<<"wang wang ..."<<endl;

}

virtual void run() {

cout << "dog running" <<endl;

}

};

class jinmao:public dog{

public:

void say() {

cout << "I am jinmao, wang wang ..." <<endl;

}

void run() {

cout << "jinmao running" <<endl;

}

};

void say(animal *a){

a->say();

}

void run(animal *a){

a->run();

}

void dog_run(dog *d){

d->run();

}

int main(){

say(new dog());

say(new jinmao());

run(new dog());

run(new jinmao());

dog_run(new jinmao());

return 0;

}

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参考资料： http://www.cnblogs.com/lidabo/p/4159382.html