Circle 构造函数 (IPoint, Double)

public Circle(
	IPoint pCenterPoint,
	double dRadius
)

Public Sub New ( 
	pCenterPoint As IPoint,
	dRadius As Double
)

public:
Circle(
	IPoint^ pCenterPoint, 
	double dRadius
)

new : 
        pCenterPoint : IPoint * 
        dRadius : float -> Circle