枚举（enum）加特性，取特性中的备注

public enum MsgCodeEnum
    {
        /// <summary>
        /// 操作成功
        /// </summary>
        [Display(Name = "Success!", Description = "操作成功")]
        Success = 0,
        /// <summary>
        /// 未知错误
        /// </summary>
        [Display(Name = "Undefined Error!", Description = "未知错误")]
        Failed = 1,
        /// <summary>
        /// 服务暂不可用
        /// </summary>
        [Display(Name = "Service Not Avaliable!", Description = "服务暂不可用")]
        NoService = 2,
        /// <summary>
        /// 未知方法
        /// </summary>
        [Display(Name = "Undefined Method", Description = "未知方法")]
        UnsupportedMethod = 3,
    }

    /// <summary>
    /// 语言类型
    /// </summary>
    public enum LanguageEnum
    {
        En = 0,
        Cn = 1
    }

    /// <summary>
    /// 中英文信息模型
    /// </summary>
    public class MsgInfo
    {
        public string En { get; set; }
        public string Cn { get; set; }

        public MsgInfo(string en, string cn)
        {
            En = en;
            Cn = cn;
        }
    }

    public class EnumUtils
    {
        /// <summary>
        /// 根据枚举获取中英文信息
        /// </summary>
        /// <param name="en"></param>
        /// <param name="languageType"></param>
        /// <returns></returns>
        public static string GetEnumDesc(MsgCodeEnum en, int languageType = (int)LanguageEnum.Cn)
        {
            Type type = en.GetType();
            var disName = type.GetField(en.ToString());
            //display名字
            var name = (DisplayAttribute)disName.GetCustomAttribute(typeof(DisplayAttribute));
            if (languageType == (int)LanguageEnum.Cn)
            {
                return name.Description ?? "";
            }
            return name.Name ?? "";
        }
        /// <summary>
        /// 根据枚举code获取中英文信息
        /// </summary>
        /// <param name="en"></param>
        /// <returns></returns>
        public static MsgInfo GetEnumDescAll(MsgCodeEnum en)
        {
            Type type = en.GetType();
            var disName = type.GetField(en.ToString());
            //display名字
            var name = (DisplayAttribute)disName.GetCustomAttribute(typeof(DisplayAttribute));
            MsgInfo msg = new MsgInfo(name.Description, name.Name);
            return msg;
        }
    }