diff --git a/Wpf_AiSportsMicrospace/Dto/MusicJumpRopeContext.cs b/Wpf_AiSportsMicrospace/Dto/MusicJumpRopeContext.cs
index 3f01bd6..6190c8b 100644
--- a/Wpf_AiSportsMicrospace/Dto/MusicJumpRopeContext.cs
+++ b/Wpf_AiSportsMicrospace/Dto/MusicJumpRopeContext.cs
@@ -50,6 +50,8 @@ namespace Dto
             }
         };
 
+        public Dictionary<int, List<double>> MusicBeatsDic;
+
         public MusicJumpRopeContext()
         {
             CirclePositions = new List<(double XNorm, double YNorm)>
@@ -58,6 +60,8 @@ namespace Dto
                     (0.50, 0.88),
         };
 
+            MusicBeatsDic = MusicBeats["1"].GroupBy(b => (int)Math.Ceiling(b) - 1).ToDictionary(g => g.Key, g => g.ToList());
+
             UserList = new List<SportUserItem>();
             UserNumberList = new List<string>();
             Sports = new List<SportBase>();
diff --git a/Wpf_AiSportsMicrospace/Views/JumpRope/GroupJumpRope.xaml.cs b/Wpf_AiSportsMicrospace/Views/JumpRope/GroupJumpRope.xaml.cs
index 8a549d0..d2f8def 100644
--- a/Wpf_AiSportsMicrospace/Views/JumpRope/GroupJumpRope.xaml.cs
+++ b/Wpf_AiSportsMicrospace/Views/JumpRope/GroupJumpRope.xaml.cs
@@ -216,7 +216,7 @@ namespace Wpf_AiSportsMicrospace.Views
             }
         }
 
-        private int _currentCountdown = 3;
+        private double _currentCountdown = 3600;
         private DateTime _lastUpdateTime = DateTime.Now;
         private void StartCountdown(int start = 3)
         {
@@ -233,10 +233,10 @@ namespace Wpf_AiSportsMicrospace.Views
 
         private void UpdateCountdown()
         {
-            if ((DateTime.Now - _lastUpdateTime).TotalSeconds >= 1)
+            if ((DateTime.Now - _lastUpdateTime).TotalMilliseconds >= 600)
             {
                 _lastUpdateTime = DateTime.Now;
-                _currentCountdown--;
+                _currentCountdown -= 600;
 
                 if (_currentCountdown > 0)
                 {
diff --git a/Wpf_AiSportsMicrospace/Views/JumpRope/MusicJumpRope.xaml.cs b/Wpf_AiSportsMicrospace/Views/JumpRope/MusicJumpRope.xaml.cs
index 937cf72..b5b9310 100644
--- a/Wpf_AiSportsMicrospace/Views/JumpRope/MusicJumpRope.xaml.cs
+++ b/Wpf_AiSportsMicrospace/Views/JumpRope/MusicJumpRope.xaml.cs
@@ -234,10 +234,11 @@ namespace Wpf_AiSportsMicrospace.Views.JumpRope
         private DateTime _lastUpdateTime = DateTime.Now;
         private void StartCountdown(int start = 3)
         {
-            _currentCountdown = start;
-            countdownText.Text = _currentCountdown.ToString();
-            countdownGrid.Visibility = Visibility.Visible;
-            _lastUpdateTime = DateTime.Now;
+            _mainWin.ShowCountDownAnimation();
+            //_currentCountdown = start;
+            //countdownText.Text = _currentCountdown.ToString();
+            //countdownGrid.Visibility = Visibility.Visible;
+            //_lastUpdateTime = DateTime.Now;
             Utils.PlayBackgroundMusic("countdown_3.mp3", false);
         }
 
@@ -276,7 +277,7 @@ namespace Wpf_AiSportsMicrospace.Views.JumpRope
             // 播放背景音乐（循环）
             Utils.PlayBackgroundMusic("1.MP3", true);
 
-            //StartBeatScrollTimer();
+            StartBeatScrollTimer();
 
             for (int i = seconds; i >= 0; i--)
             {
@@ -685,7 +686,6 @@ namespace Wpf_AiSportsMicrospace.Views.JumpRope
             var beats = _musicJumpRopeContext.MusicBeats["1"];
             double lastX = 0;
             double scale = 300; // 间隔放大系数，可调
-
             for (int i = 0; i < beats.Count; i++)
             {
                 double interval = i == 0 ? beats[0] : beats[i] - beats[i - 1];
@@ -730,6 +730,7 @@ namespace Wpf_AiSportsMicrospace.Views.JumpRope
                 beatCanvasRight.Children.Add(rightEllipse);
             }
             beatCanvasRight.Width = totalWidth;
+
         }
         private DispatcherTimer _beatScrollTimer;
         private double totalTime = 108.455; // 音乐总时长