diff --git a/Plane.FormationCreator/Formation/FlightTaskSingleCopterInfo_LED.cs b/Plane.FormationCreator/Formation/FlightTaskSingleCopterInfo_LED.cs
index 3e06aa4..239bd65 100644
--- a/Plane.FormationCreator/Formation/FlightTaskSingleCopterInfo_LED.cs
+++ b/Plane.FormationCreator/Formation/FlightTaskSingleCopterInfo_LED.cs
@@ -102,7 +102,7 @@ namespace Plane.FormationCreator.Formation
             {
                 _ledSumTime += (float)led.Delay;
             }
-            LEDSumTime = _ledSumTime;
+            LEDSumTime =(float) Math.Round(_ledSumTime, 1);
         }
 
 
@@ -204,6 +204,7 @@ namespace Plane.FormationCreator.Formation
         private double delay = 1;    //灯光延时  单位：100ms  （从当前任务开为0，延时几秒后设置LED）
         private int ledmode = 0;     //灯光模式 0常亮 1闪烁 2随机闪烁(RGB无意义)
         private float ledInterval = 0;     //闪烁延时  单位：秒
+        private int ledrate = 0;  //为了和以前文件兼容，自动转为ledInterval
         private int ledtimes = 0;    //次数 (预留、暂取消其意义)
         private string ledRGB = "FFFFFF";      //灯光颜色
         private SolidColorBrush _DrawRGB = new SolidColorBrush(Color.FromRgb(0xFF, 0xFF, 0xFF));
@@ -231,7 +232,10 @@ namespace Plane.FormationCreator.Formation
         public double Delay
         {
             get { return delay; }
-            set { delay = value; OnPropertyChanged("delay"); }
+            set {
+                delay = Math.Round(value, 1);
+                OnPropertyChanged("delay");
+            }
         }
 
         public int LEDMode
@@ -242,8 +246,22 @@ namespace Plane.FormationCreator.Formation
         public float LEDInterval
         {
             get { return ledInterval; }
-            set { ledInterval = value; }
+            set { ledInterval = value;
+                if (ledInterval != 0)
+                    ledrate = (int)Math.Round(1 / ledInterval);  //用于兼容老版本
+            }
         }
+
+        public int LEDRate
+        {
+            get { return ledrate; }
+            set { ledrate = value;
+               if ((ledrate!=0)&&(ledInterval==0))
+                    ledInterval = 1 / ledrate;
+            }
+        }
+
+
         public int LEDTimes
         {
             get { return ledtimes; }
diff --git a/Plane.FormationCreator/Views/ModifyTaskView.xaml b/Plane.FormationCreator/Views/ModifyTaskView.xaml
index 8304910..65084bd 100644
--- a/Plane.FormationCreator/Views/ModifyTaskView.xaml
+++ b/Plane.FormationCreator/Views/ModifyTaskView.xaml
@@ -427,7 +427,7 @@
                 <StackPanel DataContext="{Binding FlightTaskManager.SelectedTask.ModifyingSingleCopterInfo}">
                     <Grid >
                         <Grid.ColumnDefinitions>
-                            <ColumnDefinition Width="40*"/>
+                            <ColumnDefinition Width="45*"/>
                             <ColumnDefinition Width="61*"/>
                             <ColumnDefinition Width="61*"/>
                             <ColumnDefinition Width="61*"/>
@@ -435,7 +435,7 @@
                         <StackPanel  Orientation="Horizontal" Margin="0,0,0,0" >
                             <TextBlock  Text="总时长："   Margin="5,7,2,2" VerticalAlignment="Center" Height="15"/>
                             <TextBlock  Text="{Binding LEDSumTime}"   Margin="0,7,2,2" VerticalAlignment="Center" Height="15"/>
-                            <TextBlock  Text="秒"  Margin="0,7,5,2" VerticalAlignment="Center" Height="15"/>
+                            <TextBlock  Text="秒"  Margin="0,7,10,2" VerticalAlignment="Center" Height="15"/>
                         </StackPanel>
 
                         <Grid   Grid.Column="1" Grid.ColumnSpan="3" VerticalAlignment="Center" Height="34">