/// <summary> /// 返回信息封面图 /// </summary> public string GetImgUrl(int channel_id, int article_id) { string channelName = new BLL.site_channel().GetChannelName(channel_id);//查询频道名称 if (string.IsNullOrEmpty(channelName)) { return(string.Empty); } return(dal.GetImgUrl(channelName, article_id)); }