diff --git a/Rs.DeweyTester/FormMain.cs b/Rs.DeweyTester/FormMain.cs
index a4fe5af..50e1970 100644
--- a/Rs.DeweyTester/FormMain.cs
+++ b/Rs.DeweyTester/FormMain.cs
@@ -838,18 +838,31 @@ namespace Rs.MotionPlat
         private void txtLotName_KeyUp(object sender, KeyEventArgs e)
         {
             StringBuilder msg = new StringBuilder();
-            string reg = "[\\w,&,\\.]";
+            //string reg = "[\\w,&,\\.]";
+            //string reg = "([a-z 0-9 A-Z]*_{0,1})";
+            string reg = "\\w";
             TextBox textBox = (TextBox)sender;
-            string text=textBox.Text;
-            foreach(char c in text.ToCharArray())
+            string text = textBox.Text;
+            char[] charData = text.ToCharArray();
+            for (int i=0;i< charData.Length;i++)
             {
-                if(Regex.IsMatch(c.ToString(), reg))
+                if (Regex.IsMatch(charData[i].ToString(), reg))
                 {
-                    msg.Append(c);
+                    if(i>0 && charData[i]=='_')
+                    {
+                        if (charData[i] != charData[i-1])
+                        {
+                            msg.Append(charData[i].ToString());
+                        }
+                    }
+                   else
+                    {
+                        msg.Append(charData[i].ToString());
+                    }
                 }
             }
             textBox.Text = msg.ToString();
-            //textBox.Select(msg.Length, 0);
+            textBox.Select(msg.Length, 0);
         }
 
         private void timer3_Tick_1(object sender, EventArgs e)
diff --git a/Rs.DeweyTester/Properties/AssemblyInfo.cs b/Rs.DeweyTester/Properties/AssemblyInfo.cs
index 42d27c9..efe2604 100644
--- a/Rs.DeweyTester/Properties/AssemblyInfo.cs
+++ b/Rs.DeweyTester/Properties/AssemblyInfo.cs
@@ -31,6 +31,6 @@ using System.Runtime.InteropServices;
 //
 //可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值
 //通过使用 "*"，如下所示:
- [assembly: AssemblyVersion("20.25.27.2")]
+ [assembly: AssemblyVersion("20.25.28.1")]
 //[assembly: AssemblyVersion("1.0.0.0")]
 //[assembly: AssemblyFileVersion("1.0.0.0")]