把商品moq算法的取最大需求，改成去最大日均

AutoTurnOver.DB/purchase_advise.cs

@@ -101,7 +101,7 @@ select
                     if (difference > 0)
                     {
                         // 把最大的那条记录找出来，加给他
-                        var max_data = itemGoods.OrderByDescending(s => s.quantity_final_advise).FirstOrDefault();
+                        var max_data = itemGoods.OrderByDescending(s => s.history_fourteenday_sales).FirstOrDefault();
                         _connection.Execute(" update dc_auto_purchase_advise_detailed set quantity_final_advise=@quantity_final_advise where id=@id ", new
                         {
                             quantity_final_advise = max_data.quantity_final_advise + difference,