public MapPoint Copy()//MapPoint克隆方法

        {

            MapPoint p = new MapPoint();//这是我自定义的对象

            //利用反射获得类成员

            FieldInfo[] fieldFroms = IntrospectionExtensions.GetTypeInfo(p.GetType()).DeclaredFields.ToArray();

            FieldInfo[] fieldTos = IntrospectionExtensions.GetTypeInfo(this.GetType()).DeclaredFields.ToArray();

            int lenTo = fieldTos.Length;

            for (int i = , l = fieldFroms.Length; i < l; i++)

            {

                for (int j = ; j < lenTo; j++)

                {

                    if (fieldTos[j].Name != fieldFroms[i].Name) continue;

                    fieldTos[j].SetValue(p, fieldFroms[i].GetValue(this));
　　　　　　　　　　　　break;

                }

            }

            return p;

        }