public static void SetWXSmallProducts(string productIds)
        {
            List <Himall.Model.ProductInfo> lProductInfo = new List <Model.ProductInfo>();
            var lbId = _iWXSmallProgramService.GetWXSmallProducts().Select(item => item.ProductId).ToList();

            if (!string.IsNullOrEmpty(productIds))
            {
                var productIdsArr = productIds.Split(',').Select(item => long.Parse(item)).ToList();
                lProductInfo = _iProductService.GetAllProductByIds(productIdsArr);
                foreach (Himall.Model.ProductInfo item in lProductInfo)
                {
                    if (!lbId.Contains(Convert.ToInt32(item.Id)))
                    {
                        Himall.Model.WXSmallChoiceProductsInfo mProductsInfo = new Model.WXSmallChoiceProductsInfo()
                        {
                            ProductId = Convert.ToInt32(item.Id)
                        };
                        _iWXSmallProgramService.AddWXSmallProducts(mProductsInfo);
                    }
                }
            }
        }