public APIReturn _Add([FromForm] string Name, [FromForm] uint?Total_news, [FromForm] uint[] mn_News) { NewstagInfo item = new NewstagInfo(); item.Create_time = DateTime.Now; item.Name = Name; item.Total_news = Total_news; item = Newstag.Insert(item); //关联 News foreach (uint mn_News_in in mn_News) { item.FlagNews(mn_News_in); } return(APIReturn.成功.SetData("item", item.ToBson())); }