diff --git a/SunnyUI/Controls/UILight.cs b/SunnyUI/Controls/UILight.cs
index 9b8326eb..d2d47d8d 100644
--- a/SunnyUI/Controls/UILight.cs
+++ b/SunnyUI/Controls/UILight.cs
@@ -20,6 +20,7 @@
  * 2021-06-19: V3.0.4 增加方形显示，优化渐变色
  * 2021-08-07: V3.0.5 默认不显示灯光亮线
  * 2022-05-15: V3.1.8 增加文字显示
+ * 2022-05-12: V3.3.6 重构DrawString函数
 ******************************************************************************/
 
 using System;
@@ -89,8 +90,9 @@ namespace Sunny.UI
         /// <param name="path">绘图路径</param>
         protected override void OnPaintFore(Graphics g, GraphicsPath path)
         {
-            SizeF sf = g.MeasureString(Text, Font);
-            g.DrawString(Text, Font, ForeColor, Width / 2 - sf.Width / 2, Height / 2 - sf.Height / 2);
+            //SizeF sf = g.MeasureString(Text, Font);
+            //g.DrawString(Text, Font, ForeColor, Width / 2 - sf.Width / 2, Height / 2 - sf.Height / 2);
+            g.DrawString(Text, Font, ForeColor, ClientRectangle, TextAlign);
         }
 
         [DefaultValue(500), Description("显示间隔"), Category("SunnyUI")]
diff --git a/SunnyUI/Controls/UITabControlMenu.cs b/SunnyUI/Controls/UITabControlMenu.cs
index 17eddd28..0ac2c422 100644
--- a/SunnyUI/Controls/UITabControlMenu.cs
+++ b/SunnyUI/Controls/UITabControlMenu.cs
@@ -18,6 +18,7 @@
  *
  * 2020-01-01: V2.2.0 增加文件说明
  * 2022-08-11: V3.0.2 重写ItemSize，将宽、高调整为正常显示
+ * 2022-05-12: V3.3.6 重构DrawString函数
 ******************************************************************************/
 
 using System;
@@ -377,7 +378,8 @@ namespace Sunny.UI
 
                 // 绘制标题
                 Color textColor = index == SelectedIndex ? tabSelectedForeColor : TabUnSelectedForeColor;
-                e.Graphics.DrawString(TabPages[index].Text, Font, textColor, textLeft, TabRect.Top + 2 + (TabRect.Height - sf.Height) / 2.0f);
+                //e.Graphics.DrawString(TabPages[index].Text, Font, textColor, textLeft, TabRect.Top + 2 + (TabRect.Height - sf.Height) / 2.0f);
+                e.Graphics.DrawString(TabPages[index].Text, Font, textColor, new Rectangle(textLeft, TabRect.Top, TabRect.Width, TabRect.Height), ContentAlignment.MiddleLeft);
 
                 // 绘制图标
                 if (ImageList != null)
diff --git a/SunnyUI/Forms/UIForm.cs b/SunnyUI/Forms/UIForm.cs
index a92b5db5..001e9322 100644
--- a/SunnyUI/Forms/UIForm.cs
+++ b/SunnyUI/Forms/UIForm.cs
@@ -45,6 +45,7 @@
  * 2022-11-30: V3.3.0 增加RemoveAllPages函数
  * 2023-01-25: V3.3.1 最大化后，关闭按钮扩大至原按钮右上角全部区域
  * 2023-02-24: V3.3.2 修复PageSelected可能未显示选中页面的问题
+ * 2022-05-12: V3.3.6 重构DrawString函数
 ******************************************************************************/
 
 using System;
@@ -1242,14 +1243,16 @@ namespace Sunny.UI
                 }
             }
 
-            SizeF sf = e.Graphics.MeasureString(Text, TitleFont);
+            //SizeF sf = e.Graphics.MeasureString(Text, TitleFont);
             if (TextAlignment == StringAlignment.Center)
             {
-                e.Graphics.DrawString(Text, TitleFont, titleForeColor, (Width - sf.Width) / 2, (TitleHeight - sf.Height) / 2);
+                //e.Graphics.DrawString(Text, TitleFont, titleForeColor, (Width - sf.Width) / 2, (TitleHeight - sf.Height) / 2);
+                e.Graphics.DrawString(Text, TitleFont, titleForeColor, new Rectangle(0, 0, Width, TitleHeight), ContentAlignment.MiddleCenter);
             }
             else
             {
-                e.Graphics.DrawString(Text, TitleFont, titleForeColor, 6 + (ShowTitleIcon && Icon != null ? 26 : 0), (TitleHeight - sf.Height) / 2);
+                //e.Graphics.DrawString(Text, TitleFont, titleForeColor, 6 + (ShowTitleIcon && Icon != null ? 26 : 0), (TitleHeight - sf.Height) / 2);
+                e.Graphics.DrawString(Text, TitleFont, titleForeColor, new Rectangle(6 + (ShowTitleIcon && Icon != null ? 26 : 0), 0, Width, TitleHeight), ContentAlignment.MiddleLeft);
             }
         }