#include <iostream>

using std::cout;

using std::endl;

//定义结构

struct Box{

	double length;

	double width;

	double height;

};

double volume(const Box& aBox);

int main(){

	Box box={70.0,60.0,40.0};

	double boxVolume=volume(box);

	cout << "Size of box is:"<<endl

		<< "length:"<<box.length<<endl

		<<"width:"<<box.width<<endl

		<<"height:"<<box.height<<endl;

	cout <<"Voluem of box is:"<<boxVolume<<endl;

	return 0;

}

//计算体积的函数

double volume(const Box& box){

	return box.length*box.width*box.height;

}