public ActionResult GoodsBuySave(Goods1 model)//商品采购保存
        {
            if (ModelState.IsValid)
            {
                var article = new Goods1();

                article.GoodsName      = model.GoodsName;
                article.GoodsBuyPrice  = model.GoodsBuyPrice;
                article.GoodsSellPrice = model.GoodsSellPrice;
                article.GoodsNumber    = model.GoodsNumber;
                article.GoodsBuyDate   = DateTime.Now;

                var db = new AirDataBase();

                db.Goods.Add(article);
                db.SaveChanges();
            }

            return(Redirect("GIndex"));
        }
        //商品出售

        public ActionResult SellSave(Goods1 model)
        {
            if (ModelState.IsValid)
            {
                var db = new AirDataBase();
                db.Database.CreateIfNotExists();

                var lst = db.Goods.AsQueryable();
                lst = lst.Where(o => o.GoodsName.Contains(model.GoodsName));
                foreach (var a in lst)
                {
                    if (a.GoodsName == model.GoodsName)
                    {
                        a.GoodsNumber = a.GoodsNumber - model.GoodsNumber;
                    }
                }
            }

            // return RedirectToAction("Index", "Home");
            return(Redirect("GIndex"));
        }