/// <summary>
        /// 自动应答(客服消息)
        /// </summary>
        /// <param name="item"></param>
        /// <param name="openId"></param>
        /// <returns></returns>
        public async Task <Result <string> > AutoRespond(WxAutoKeywordShow item, string openId)
        {
            try
            {
                // 自动推送类型
                Enum_ApMsgType type = ComHelper.GetEnumValueByStr <Enum_ApMsgType>(item.ContentType);
                // 发送客服消息预览
                PubApiResult apiRes = new PubApiResult();
                switch (type)
                {
                case Enum_ApMsgType.Text:
                    item.TextContent = item.TextContent.Replace("{nickname}", string.Empty);
                    apiRes           = PubKfApi.SendTextMsg(openId, item.TextContent);
                    break;

                case Enum_ApMsgType.Image:
                    apiRes = PubKfApi.SendImageMsg(openId, item.MediaId);
                    break;

                case Enum_ApMsgType.Voice:
                    apiRes = PubKfApi.SendVoiceMsg(openId, item.MediaId);
                    break;

                case Enum_ApMsgType.News:
                    apiRes = PubKfApi.SendMpNewsMsg(openId, item.MediaId);
                    break;

                case Enum_ApMsgType.Video:
                    apiRes = PubKfApi.SendVideoMsg(openId, item.MediaId, item.VideoThumbMediaId, item.VideoTitle, item.VideoDescription);
                    break;

                case Enum_ApMsgType.BackNews:
                    var lstArts = await wxAutoConvertHelper.GetAutoKeywordBackNews(item);

                    apiRes = PubKfApi.SendNewsMsg(openId, lstArts);
                    break;

                case Enum_ApMsgType.RedBag:
                    return(await wxAutoConvertHelper.SendAutoKeywordRedPack(item, openId));

                default:
                    break;
                }

                logHelper.Debug("PrevKeyword:预览返回结果:" + ComHelper.JsonSerialize(apiRes));
                if (!apiRes.IsSuss)
                {
                    var msg = "预览出错:" + apiRes.errcode + "    " + apiRes.errmsg;
                    logHelper.Error("PrevKeyword:" + msg);
                    return(new Result <string> {
                        Message = msg
                    });
                }

                return(new Result <string> {
                    IsSucc = true, Message = "发送预览消息成功!"
                });
            }
            catch (Exception ex)
            {
                logHelper.Error("PrevKeyword:发送预览消息失败:" + ex.Message + "     " + ex.StackTrace);
            }

            return(new Result <string> {
                Message = "发送预览消息失败!"
            });
        }