解决 用水量没有记录的问题

guidescreen/GuideScreen/GuideScreen.UI/FormScreen.cs

@@ -162,8 +162,9 @@ namespace GuideScreen.UI
                 //获取天气信息
                 await GetWeather();
 
-                //总用水量
-                lblWaterMeter.Text = plcController.GetWaterTotal().ToString();
+                //用水量
+                SetDayWarterAndelEctricity();
+
             }
             catch (Exception ex)
             {
@@ -813,7 +814,7 @@ namespace GuideScreen.UI
         {
             var count = toilets.Values.Sum();
             //每用次1.6升水
-            var value = Math.Round(count * 0.0016, 4);
+            var value = Convert.ToSingle(Math.Round(count * 0.0016, 4));
             var dayStr = value.ToString().Aggregate(string.Empty, (c, i) => c + i + " ");
             lblDayWarter.Text = $"今日用水量  {dayStr} 吨  ";