第二周 项目2-长方柱类

#include <iostream>

using namespace std;

class Bulk
{
public:
    void getdata();
    double volume();
    double areas();
private:
    double length;
    double width;
    double height;
};

void Bulk::getdata()
{
    cout<<"请分别输入长方体的长、宽、高：";
    cin>>length>>width>>height;
}

double Bulk::volume()
{
    double V;
    V=length*width*height;
    return V;
}

double Bulk::areas()
{
    double S;
    S=2*length*width+2*length*height+2*width*height;
    return S;
}

int main()
{
    Bulk B1,B2,B3;
    B1.getdata();
    B2.getdata();
    B3.getdata();
    cout<<"3个长方体的体积和表面积分别为："<<endl;
    cout<<B1.volume()<<' '<<B1.areas()<<endl;
    cout<<B2.volume()<<' '<<B2.areas()<<endl;
    cout<<B3.volume()<<' '<<B3.areas()<<endl;
    return 0;
}