枚举类型获取描述

        /// <summary>
        /// 获取枚举文本内容
        /// </summary>
        /// <param name="enum"></param>
        /// <returns></returns>
        public static string GetEnumDescription(this Enum @enum)
        {
            if (@enum == null)
            {
                return string.Empty;
            }
            Type enumType = @enum.GetType();
            var name = Enum.GetName(enumType, @enum);
            if (name == null)
                return string.Empty;
            var descAttr = enumType.GetField(name).GetCustomAttribute<System.ComponentModel.DescriptionAttribute>();
            return descAttr != null ? descAttr.Description : string.Empty;
        }