C++

#include
using namespace std;


class Box{
private:
	int length;
	int width;
	int high;
public:
	void setData();
	int volume();
};

#include
#include "2_2_Box.h"
using namespace std;


void Box::setData(){
	cout<<"input length:";
	cin>>length;
	cout<<"input width:";
	cin>>width;
	cout<<"input high:";
	cin>>high;
}

int Box::volume(){
	return length*width*high;
}

#include
#include "2_2_Box.h"
using namespace std;


int main(){
	Box b1,b2,b3;
	b1.setData();
	cout<<"体积="<