diff --git a/SunnyUI/Controls/UIRuler.cs b/SunnyUI/Controls/UIRuler.cs
new file mode 100644
index 00000000..53a32de8
--- /dev/null
+++ b/SunnyUI/Controls/UIRuler.cs
@@ -0,0 +1,373 @@
+/******************************************************************************
+ * SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
+ * CopyRight (C) 2012-2023 ShenYongHua(沈永华).
+ * QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
+ *
+ * Blog:   https://www.cnblogs.com/yhuse
+ * Gitee:  https://gitee.com/yhuse/SunnyUI
+ * GitHub: https://github.com/yhuse/SunnyUI
+ *
+ * SunnyUI.dll can be used for free under the GPL-3.0 license.
+ * If you use this code, please keep this note.
+ * 如果您使用此代码，请保留此说明。
+ ******************************************************************************
+ * 文件名称: UIRuler.cs
+ * 文件说明: 刻度尺
+ * 当前版本: V3.6.1
+ * 创建日期: 2020-01-01
+ *
+ * 2023-11-29: V3.6.1 增加文件说明
+******************************************************************************/
+
+using System;
+using System.ComponentModel;
+using System.Drawing;
+using System.Windows.Forms;
+
+namespace Sunny.UI
+{
+    [ToolboxItem(true)]
+    public class UIRuler : UIControl
+    {
+        private UITrackBar.BarDirection direction = UITrackBar.BarDirection.Horizontal;
+
+        [DefaultValue(UITrackBar.BarDirection.Horizontal)]
+        [Description("线条方向"), Category("SunnyUI")]
+        public UITrackBar.BarDirection Direction
+        {
+            get => direction;
+            set
+            {
+                direction = value;
+                Invalidate();
+            }
+        }
+
+        public UIRuler()
+        {
+            SetStyleFlags();
+            Width = 150;
+            Height = 29;
+
+            ShowText = false;
+            ShowRect = false;
+
+            fillColor = UIColor.Transparent;
+            BackColor = UIColor.Transparent;
+        }
+
+        private int interval = 15;
+
+        [DefaultValue(15)]
+        [Description("两边间隔"), Category("SunnyUI")]
+        public int Interval
+        {
+            get => interval;
+            set
+            {
+                interval = value;
+                Invalidate();
+            }
+        }
+
+        public enum UITextPos
+        {
+            Front,
+            Behind
+        }
+
+        UITextPos textDirection = UITextPos.Front;
+
+        [DefaultValue(UITextPos.Front)]
+        [Description("文字位置"), Category("SunnyUI")]
+        public UITextPos TextDirection
+        {
+            get => textDirection;
+            set
+            {
+                textDirection = value;
+                Invalidate();
+            }
+        }
+
+        protected override void OnPaint(PaintEventArgs e)
+        {
+            base.OnPaint(e);
+            double value = StartValue;
+
+            //水平显示
+            if (Direction == UITrackBar.BarDirection.Horizontal)
+            {
+                float step = (Width - interval * 2) * 1.0f / stepCount;
+                float mstep = 0;
+                if (minorCount > 0) mstep = step * 1.0f / (minorCount + 1);
+                float left = interval;
+
+                //文字在上面
+                if (TextDirection == UITextPos.Front)
+                {
+                    for (int i = 0; i <= stepCount; i++)
+                    {
+                        e.Graphics.DrawLine(LineColor, left, Height, left, Height - MajorSize);
+                        if (i < stepCount)
+                        {
+                            for (int j = 0; j < minorCount; j++)
+                            {
+                                e.Graphics.DrawLine(LineColor, left + mstep * (j + 1), Height, left + mstep * (j + 1), Height - minorSize);
+                            }
+                        }
+
+                        string str = value.ToString("F" + decimalPlaces);
+                        e.Graphics.DrawString(str, Font, ForeColor, new Rectangle((int)left - 100, Height - MajorSize - 200 - 1, 200, 200), ContentAlignment.BottomCenter, 1, 0);
+                        left += step;
+                        value += StepValue;
+                    }
+                }
+
+                if (TextDirection == UITextPos.Behind)
+                {
+                    for (int i = 0; i <= stepCount; i++)
+                    {
+                        e.Graphics.DrawLine(LineColor, left, 0, left, MajorSize);
+                        if (i < stepCount)
+                        {
+                            for (int j = 0; j < minorCount; j++)
+                            {
+                                e.Graphics.DrawLine(LineColor, left + mstep * (j + 1), 0, left + mstep * (j + 1), minorSize);
+                            }
+                        }
+
+                        string str = value.ToString("F" + decimalPlaces);
+                        e.Graphics.DrawString(str, Font, ForeColor, new Rectangle((int)left - 100, MajorSize + 1, 200, 200), ContentAlignment.TopCenter, 1, 0);
+                        left += step;
+                        value += StepValue;
+                    }
+                }
+            }
+
+            //垂直显示，从下往上
+            if (Direction == UITrackBar.BarDirection.Vertical)
+            {
+                float step = (Height - interval * 2) * 1.0f / stepCount;
+                float mstep = 0;
+                if (minorCount > 0) mstep = step * 1.0f / (minorCount + 1);
+                float top = Height - interval;
+
+                //文字在左面
+                if (TextDirection == UITextPos.Front)
+                {
+                    for (int i = 0; i <= stepCount; i++)
+                    {
+                        e.Graphics.DrawLine(LineColor, Width, top, Width - MajorSize, top);
+                        if (i < stepCount)
+                        {
+                            for (int j = 0; j < minorCount; j++)
+                            {
+                                e.Graphics.DrawLine(LineColor, Width, top - mstep * (j + 1), Width - minorSize, top - mstep * (j + 1));
+                            }
+                        }
+
+                        string str = value.ToString("F" + decimalPlaces);
+                        e.Graphics.DrawString(str, Font, ForeColor, new Rectangle(Width - MajorSize - 200 + 1, (int)top - 100, 200, 200), ContentAlignment.MiddleRight, 0, 0);
+                        top -= step;
+                        value += StepValue;
+                    }
+                }
+
+                //文字在右边
+                if (TextDirection == UITextPos.Behind)
+                {
+                    for (int i = 0; i <= stepCount; i++)
+                    {
+                        e.Graphics.DrawLine(LineColor, 0, top, MajorSize, top);
+                        if (i < stepCount)
+                        {
+                            for (int j = 0; j < minorCount; j++)
+                            {
+                                e.Graphics.DrawLine(LineColor, 0, top - mstep * (j + 1), minorSize, top - mstep * (j + 1));
+                            }
+                        }
+
+                        string str = value.ToString("F" + decimalPlaces);
+                        e.Graphics.DrawString(str, Font, ForeColor, new Rectangle(MajorSize + 1, (int)top - 100, 200, 200), ContentAlignment.MiddleLeft, 0, 0);
+                        top -= step;
+                        value += StepValue;
+                    }
+                }
+            }
+
+            //垂直显示，从上往下
+            if (Direction == UITrackBar.BarDirection.VerticalDown)
+            {
+                float step = (Height - interval * 2) * 1.0f / stepCount;
+                float mstep = 0;
+                if (minorCount > 0) mstep = step * 1.0f / (minorCount + 1);
+                float top = interval;
+
+                //文字在左面
+                if (TextDirection == UITextPos.Front)
+                {
+                    for (int i = 0; i <= stepCount; i++)
+                    {
+                        e.Graphics.DrawLine(LineColor, Width, top, Width - MajorSize, top);
+                        if (i < stepCount)
+                        {
+                            for (int j = 0; j < minorCount; j++)
+                            {
+                                e.Graphics.DrawLine(LineColor, Width, top + mstep * (j + 1), Width - minorSize, top + mstep * (j + 1));
+                            }
+                        }
+
+                        string str = value.ToString("F" + decimalPlaces);
+                        e.Graphics.DrawString(str, Font, ForeColor, new Rectangle(Width - MajorSize - 200 + 1, (int)top - 100, 200, 200), ContentAlignment.MiddleRight, 0, 0);
+                        top += step;
+                        value += StepValue;
+                    }
+                }
+
+                //文字在右边
+                if (TextDirection == UITextPos.Behind)
+                {
+                    for (int i = 0; i <= stepCount; i++)
+                    {
+                        e.Graphics.DrawLine(LineColor, 0, top, MajorSize, top);
+                        if (i < stepCount)
+                        {
+                            for (int j = 0; j < minorCount; j++)
+                            {
+                                e.Graphics.DrawLine(LineColor, 0, top + mstep * (j + 1), minorSize, top + mstep * (j + 1));
+                            }
+                        }
+
+                        string str = value.ToString("F" + decimalPlaces);
+                        e.Graphics.DrawString(str, Font, ForeColor, new Rectangle(MajorSize + 1, (int)top - 100, 200, 200), ContentAlignment.MiddleLeft, 0, 0);
+                        top += step;
+                        value += StepValue;
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// 设置主题样式
+        /// </summary>
+        /// <param name="uiColor">主题样式</param>
+        public override void SetStyleColor(UIBaseStyle uiColor)
+        {
+            base.SetStyleColor(uiColor);
+
+            rectColor = uiColor.LineRectColor;
+            ForeColor = uiColor.LineForeColor;
+            fillColor = UIColor.Transparent;
+            BackColor = UIColor.Transparent;
+        }
+
+        /// <summary>
+        /// 线颜色
+        /// </summary>
+        [Description("线颜色"), Category("SunnyUI")]
+        [DefaultValue(typeof(Color), "80, 160, 255")]
+        public Color LineColor
+        {
+            get => rectColor;
+            set => SetRectColor(value);
+        }
+
+        private double startValue = 0;
+
+        [Description("起始值"), Category("SunnyUI")]
+        [DefaultValue(typeof(double), "0")]
+        public double StartValue
+        {
+            get => startValue;
+            set
+            {
+                startValue = value;
+                Invalidate();
+            }
+        }
+
+        private double stepValue = 20;
+
+        [Description("递增值"), Category("SunnyUI")]
+        [DefaultValue(typeof(double), "20")]
+        public double StepValue
+        {
+            get => stepValue;
+            set
+            {
+                stepValue = Math.Max(1, value);
+                Invalidate();
+            }
+        }
+
+        private int stepCount = 5;
+
+        [Description("递增次数"), Category("SunnyUI")]
+        [DefaultValue(5)]
+        public int StepCount
+        {
+            get => stepCount;
+            set
+            {
+                stepCount = Math.Max(1, value);
+                Invalidate();
+            }
+        }
+
+        private int majorSize = 6;
+
+        [Description("主刻度长度"), Category("SunnyUI")]
+        [DefaultValue(6)]
+        public int MajorSize
+        {
+            get => majorSize;
+            set
+            {
+                majorSize = Math.Max(4, value);
+                Invalidate();
+            }
+        }
+
+        private int minorSize = 3;
+
+        [Description("小刻度长度"), Category("SunnyUI")]
+        [DefaultValue(3)]
+        public int MinorSize
+        {
+            get => minorSize;
+            set
+            {
+                minorSize = Math.Max(2, value);
+                Invalidate();
+            }
+        }
+
+        private int minorCount = 1;
+
+        [Description("小刻度个数"), Category("SunnyUI")]
+        [DefaultValue(1)]
+        public int MinorCount
+        {
+            get => minorCount;
+            set
+            {
+                minorCount = Math.Max(0, value);
+                Invalidate();
+            }
+        }
+
+        private int decimalPlaces = 0;
+        [Description("浮点数，显示文字小数位数"), Category("SunnyUI")]
+        [DefaultValue(0)]
+        public int DecimalPlaces
+        {
+            get => decimalPlaces;
+            set
+            {
+                decimalPlaces = Math.Max(0, value);
+                Invalidate();
+            }
+        }
+    }
+}
diff --git a/SunnyUI/Controls/UITrackBar.cs b/SunnyUI/Controls/UITrackBar.cs
index 133c05f6..7510e45e 100644
--- a/SunnyUI/Controls/UITrackBar.cs
+++ b/SunnyUI/Controls/UITrackBar.cs
@@ -84,7 +84,6 @@ namespace Sunny.UI
             }
         }
 
-
         private int _maximum = 100;
         private int _minimum;
         private int trackBarValue;
diff --git a/SunnyUI/UIRuler.cs b/SunnyUI/UIRuler.cs
deleted file mode 100644
index 177b4a06..00000000
--- a/SunnyUI/UIRuler.cs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace Sunny.UI
-{
-    public class UIRuler : UIControl
-    {
-
-    }
-}