在C#中如何實現枚舉類型的特性擴展和反射獲取

public enum 月定制項目
  {
            [CustomItemAttribute()]
            一點五元夜餐次數=1,
            [CustomItemAttribute()]
            二元夜餐次數=2,
            [CustomItemAttribute()]
             連班次數 =3,
            [CustomItemAttribute()]
            甲類保健津貼次數 =4,
            [CustomItemAttribute()]
            乙類保健津貼次數 =5,
            [CustomItemAttribute()]
            周六加班次數 =6,
            [CustomItemAttribute()]
            周日加班次數 =7,
            [CustomItemAttribute()]
            零點夜班次數 =8,
            [CustomItemAttribute()]
            節假日加班次數 =9,
            [CustomItemAttribute()]
            四點夜班次數 =10,
            [CustomItemAttribute()]
            事假天數=11,
            [CustomItemAttribute()]
            病假天數 =12