private bool CompareByVolumnDescent(Shape3D a, Shape3D b) //Ascent =true 時遞增 =false 時遞減 { if (a.Volume() < b.Volume()) { return(true); } else { return(false); } }
private bool CompareByVolumnD(Shape3D a, Shape3D b) { return(a.Volume() < b.Volume()); }