订单处理逻辑加上取消订单的判断

AppStart/Helper/AlipayPayBack2Service.cs

@@ -81,7 +81,7 @@ namespace MySystem
         #region 新订单流程
         public void DoOrderV2(WebCMSEntities db, int OrderId)
         {
-            Orders order = db.Orders.FirstOrDefault(m => m.Id == OrderId && m.Status == 0);
+            Orders order = db.Orders.FirstOrDefault(m => m.Id == OrderId && m.Status <= 0);
             if (order != null)
             {
                 order.Status = 1;