public void MtUpdateStock(Mt_AccountDTO account, string shopNo, IEnumerable <StockModel> data) { var num1 = data.Count(); var size = 50; var num2 = size; var num3 = (num1 + num2 - 1) / size; var msg = ""; for (var index = 0; index < num3; ++index) { var source = data.Skip(index * size).Take(size); var foodDataList = new List <FoodData>(); foreach (var grouping in source.GroupBy(a => a["ProdCode"])) { var code = grouping; var foodData = new FoodData() { app_food_code = code.Key.ToString() }; var tokens = source.Where(a => a["ProdCode"] == code.Key); var skuList = new List <Sku>(); foreach (var jtoken in tokens) { skuList.Add(new Sku() { sku_id = jtoken["ProdNo"]?.ToString(), stock = jtoken["Stock"]?.ToString() }); } foodData.skus = skuList; foodDataList.Add(foodData); } var model = new JObject() { { "timestamp", ToolsCommon.GetTimestamp().ToString() }, { "app_id", account.WaimaiAppId }, { "app_poi_code", shopNo }, { "food_data", JsonConvert.SerializeObject(foodDataList) } }; var url = GetUrl(account.WaimaiAppSecret, "https://waimaiopen.meituan.com/api/v1/food/sku/stock", model); model.Remove("timestamp"); model.Remove("app_id"); var response = HttpCommon.PostJObject(url, model); } }