fix

Projects/永冠OPP/WCS.Service/Helpers/DeviceTaskTimeHelper.cs

@@ -41,7 +41,7 @@ namespace WCS.Service.Helpers
             {
                 var deviceTaskTime= deviceTaskTimes.Find(v => v.DeviceCode == rgv.Entity.CODE);
                 deviceTaskTime.EndTime= DateTime.Now;
-                deviceTaskTime.SumTime = (deviceTaskTime.StartTime - deviceTaskTime.EndTime).TotalSeconds;
+                deviceTaskTime.SumTime = (deviceTaskTime.EndTime - deviceTaskTime.StartTime).TotalSeconds;
                 InfoLog.INFO_DEVICETASKTIME(JsonConvert.SerializeObject(deviceTaskTime));
                 deviceTaskTimes.Remove(deviceTaskTime);
             }