public enum DiscountType
    {
        [Description("001")]
        ComboDiscount,
        [Description("002")]
        AutoDiscount,
        [Description("003")]
        ShippingPromotion,
        [Description("004")]
        Com,
        [Description("005")]
        PromotionCode,
        [Description("006")]
        RushOrder,
        [Description("008")]
        EggPoint,
        [Description("009")]
        PremierDiscount,
        [Description("010")]
        RushOrderFee
    }

//获取枚举的Description信息
        public static string GetEnumDescription(Enum e)
        {
            FieldInfo enumInfo = e.GetType().GetField(e.ToString());
            DescriptionAttribute[] enumAttributes = (DescriptionAttribute[])enumInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
            if (enumAttributes.Length > 0)
            {
                return enumAttributes[0].Description;
            }
            return e.ToString();
        }