diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Properties/AssemblyInfo.cs b/Windows/CS/Framework4.0/Toprie/Toprie/Properties/AssemblyInfo.cs
index 4a10be8..51de4bc 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Properties/AssemblyInfo.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Properties/AssemblyInfo.cs
@@ -33,6 +33,6 @@ using System.Runtime.InteropServices;
 //通过使用 "*"，如下所示:
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("1.0.2.5")]
-[assembly: AssemblyFileVersion("1.0.2.7")]
+[assembly: AssemblyFileVersion("1.0.2.8")]
 
 // NuGet包相关信息已在项目文件中配置
diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/preview.cs b/Windows/CS/Framework4.0/Toprie/Toprie/preview.cs
index 84fc221..5cfd760 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/preview.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/preview.cs
@@ -14,12 +14,27 @@ namespace JoyD.Windows.CS
     /// </summary>
     public partial class preview : Form
     {
+        // 原始温度数据矩阵尺寸
+        private const int DATA_WIDTH = 256;
+        private const int DATA_HEIGHT = 192;
+        // 热力图显示尺寸
+        private const int DISPLAY_WIDTH = 512;
+        private const int DISPLAY_HEIGHT = 384;
+
+        // 鼠标当前指向的数据点坐标
+        private Point _currentDataPoint = new Point(-1, -1);
+        // 用于保护_currentDataPoint访问的锁对象
+        private readonly object _dataPointLock = new object();
+
         /// <summary>
         /// 初始化预览窗口的构造函数
         /// </summary>
         public preview()
         {
             InitializeComponent();
+            previewImageBox.MouseMove += PreviewImageBox_MouseMove;
+            previewImageBox.MouseLeave += PreviewImageBox_MouseLeave;
+            previewImageBox.Paint += PreviewImageBox_Paint;
         }
         
         /// <summary>
@@ -48,6 +63,9 @@ namespace JoyD.Windows.CS
                 {
                     previewImageBox.Image = (Image)image.Clone();
                 }
+                
+                // 图像更新后，确保重绘以保持覆盖层正确
+                previewImageBox.Invalidate();
             }
             catch (Exception ex)
             {
@@ -62,6 +80,11 @@ namespace JoyD.Windows.CS
         {
             base.OnFormClosed(e);
             
+            // 移除事件绑定
+            previewImageBox.MouseMove -= PreviewImageBox_MouseMove;
+            previewImageBox.MouseLeave -= PreviewImageBox_MouseLeave;
+            previewImageBox.Paint -= PreviewImageBox_Paint;
+            
             // 释放图像资源
             if (previewImageBox.Image != null)
             {
@@ -69,5 +92,126 @@ namespace JoyD.Windows.CS
                 previewImageBox.Image = null;
             }
         }
+
+        // 鼠标移动事件处理
+        private void PreviewImageBox_MouseMove(object sender, MouseEventArgs e)
+        {
+            if (previewImageBox.Image == null) return;
+            
+            // 计算鼠标在图像上的坐标（考虑图像缩放）
+            Point imagePoint = GetImagePoint(e.Location);
+            
+            // 映射到原始数据点坐标
+            Point dataPoint = MapToDataPoint(imagePoint);
+            
+            // 使用锁保护_currentDataPoint的访问
+            lock (_dataPointLock)
+            {
+                // 如果数据点发生变化，重绘控件
+                if (_currentDataPoint != dataPoint)
+                {
+                    _currentDataPoint = dataPoint;
+                    previewImageBox.Invalidate(); // 触发Paint事件重绘
+                }
+            }
+        }
+
+        // 鼠标离开事件处理
+        private void PreviewImageBox_MouseLeave(object sender, EventArgs e)
+        {
+            // 使用锁保护_currentDataPoint的访问
+            lock (_dataPointLock)
+            {
+                _currentDataPoint = new Point(-1, -1);
+                previewImageBox.Invalidate(); // 触发Paint事件重绘
+            }
+        }
+
+        // 将控件坐标转换为图像坐标
+        private Point GetImagePoint(Point controlPoint)
+        {
+            if (previewImageBox.Image == null)
+                return controlPoint;
+                
+            // 计算图像在控件中的缩放比例
+            // SizeMode = StretchImage 将图像拉伸填满整个PictureBox
+            // 控件左上角对应图像左上角，控件右下角对应图像右下角
+            float scaleX = (float)previewImageBox.Image.Width / previewImageBox.ClientSize.Width;
+            float scaleY = (float)previewImageBox.Image.Height / previewImageBox.ClientSize.Height;
+            
+            // 计算图像坐标
+            return new Point(
+                (int)(controlPoint.X * scaleX),
+                (int)(controlPoint.Y * scaleY)
+            );
+        }
+
+        // 将图像坐标映射到原始数据点坐标
+        private Point MapToDataPoint(Point imagePoint)
+        {
+            // 确保坐标在有效范围内
+            int x = Math.Max(0, Math.Min(imagePoint.X, DISPLAY_WIDTH - 1));
+            int y = Math.Max(0, Math.Min(imagePoint.Y, DISPLAY_HEIGHT - 1));
+            
+            // 计算原始数据点坐标（整数除法，向下取整）
+            return new Point(x / 2, y / 2);
+        }
+
+        // 将原始数据点坐标映射到热力图覆盖区域
+        private Rectangle GetDataPointCoverageArea(Point dataPoint)
+        {
+            // 确保数据点在有效范围内
+            int x = Math.Max(0, Math.Min(dataPoint.X, DATA_WIDTH - 1));
+            int y = Math.Max(0, Math.Min(dataPoint.Y, DATA_HEIGHT - 1));
+            
+            // 计算覆盖区域（2×2像素）
+            return new Rectangle(x * 2, y * 2, 2, 2);
+        }
+
+        // Paint事件处理函数
+        private void PreviewImageBox_Paint(object sender, PaintEventArgs e)
+        {
+            // 边界检查：如果没有图像，不需要绘制覆盖层
+            if (previewImageBox.Image == null)
+                return;
+            
+            // 使用锁保护_currentDataPoint的访问并进行有效性检查
+            Point currentDataPoint;
+            lock (_dataPointLock)
+            {
+                currentDataPoint = _currentDataPoint;
+                // 如果没有有效的数据点，不需要绘制覆盖层
+                if (currentDataPoint.X < 0 || currentDataPoint.Y < 0)
+                    return;
+            }
+            
+            // 计算数据点在图像坐标系中的覆盖区域
+            Rectangle imageArea = GetDataPointCoverageArea(currentDataPoint);
+            
+            // 转换为控件坐标系
+            float scaleX = (float)previewImageBox.ClientSize.Width / previewImageBox.Image.Width;
+            float scaleY = (float)previewImageBox.ClientSize.Height / previewImageBox.Image.Height;
+            
+            Rectangle controlArea = new Rectangle(
+                (int)(imageArea.X * scaleX),
+                (int)(imageArea.Y * scaleY),
+                (int)(imageArea.Width * scaleX),
+                (int)(imageArea.Height * scaleY)
+            );
+            
+            // 使用using语句确保GDI+资源正确释放
+            using (Brush semiTransparentRed = new SolidBrush(Color.FromArgb(128, Color.Red)))
+            {
+                // 绘制覆盖层
+                e.Graphics.FillRectangle(semiTransparentRed, controlArea);
+                
+                // 使用using语句确保Pen资源正确释放
+                using (Pen borderPen = new Pen(Color.Red, 1))
+                {
+                    // 可选：绘制矩形边框以增强视觉效果
+                    e.Graphics.DrawRectangle(borderPen, controlArea);
+                }
+            }
+        }
     }
 }