public void doRecommend(Model.RecommendModel model) { DAL.RecommendDAL dal = new DAL.RecommendDAL(); if (model.RecommendId == "") { dal.DeleteList(" ReKey='" + model.ReKey + "' and RecommendType='" + model.RecommendType + "' "); //已经存在了,就删除之前的, 按照此次为准. model.RecommendId = Common.TimeString.GetNow_ff(); dal.Add(model); } else { dal.Update(model); } }