#include <iostream>
using namespace std;
class Box{
	public:
		//定義資料
		int h, w, d;
		//定義行為
		int volume(){
			return h*w*d;
		}
		void print(){
			cout<<"h:"<<h<<", w:"<<w<<", d:"<<d<<", volume:"<<volume()<<endl;
		}
};

int main(){
	Box b1;
	b1.h=100;
	b1.w=50;
	b1.d=30;
	cout<<"b1的體積="<<b1.volume()<<endl;
	//
	Box b2;
	b2.h=60;
	b2.w=30;
	b2.d=30;
	b2.print();

	return 0;
}