帮忙三角剖分的一个错误

Question

错误   找不到类型或命名空间名称“Geometry_T”(是否缺少 using 指令或程序集引用?) public class Circle_T : Geometry_T

Answer 1

  public class Circle_T:Geometry_T      {          private Point_T cpt;            public Point_T Cpt          {              get { return cpt; }              set { cpt = value; }          }          double radius;            public double Radius          {              get { return radius; }              set { radius = value; }          }            public Circle_T()          { }          public Circle_T(Point_T pt, double r)          {              cpt = pt;              radius = r;          }      }  

Answer 2

  public class Circle_T:Geometry_T  
    {  
        private Point_T cpt;  
        public Point_T Cpt  
        {  
            get { return cpt; }  
            set { cpt = value; }  
        }  
        double radius;  
        public double Radius  
        {  
           get { return radius; }  
            set { radius = value; }  
        }         public Circle_T()  
        { }         public Circle_T(Point_T pt, double r)          {  
           cpt = pt;              radius = r;          }      }