[Ｃ++] 考古題 95年-9(class)

[vincent79715 (軒~)]

#define PI 3.1415926
#include <iostream>
using namespace std ;
class Sphere
{
        public:
                Sphere();
                void CalculateVolume() ;
                void CalculateSurfaceArea() ;
                void PrintSphere() ;
        private:
                double radius ;
                double volume ;
                double s_area ;
};
Sphere::Sphere()
{
        cin>>radius;
}
void Sphere::CalculateSurfaceArea()
{
     s_area=4.0*PI*radius*radius;
}
void Sphere::CalculateVolume()
{
     volume = 4.0 / 3.0 * PI*radius*radius*radius;
}
void Sphere::PrintSphere()
{
     cout << "表面積＝" << s_area << endl ;
     cout << "體積＝" << volume << endl ;
}
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解答寫的好像沒辦法用？

大家參考一下吧
※ 編輯: vincent79715    來自: 140.112.241.88       (01/15 14:23)
→ sb0917:喔喔!!大感謝!!