长方柱类

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#include <iostream>#include <cmath>using namespace std;class Volume{public:    void setdata(double length,double width,double height);    double area();    double volume();private:    double length;    double width;    double height;};//下面定义需要的成员函数void Volume::setdata(double l,double w,double h)//赋值{    length=l;    width=w;    height=h;}double Volume::area()//求面积{    return 2*(length*width+width*height+height*length);}double Volume::volume()//求体积{    return length*width*height;}int main(){    int t=3,i=1;    while(t--)    {        double l,w,h;        cout<<"请输入长方柱"<<i<<"的长: ";        cin>>l;        cout<<"请输入长方柱"<<i<<"的宽: ";        cin>>w;        cout<<"请输入长方柱"<<i<<"的高: ";        cin>>h;        Volume v;        v.setdata(l,w,h);        cout<<"长方柱"<<i<<"的表面积为: "<<v.area()<<endl;        cout<<"长方柱"<<i<<"的体积为: "<<v.volume()<<endl;        i++;    }    return 0;}

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