diff --git a/Platform/STM32F1/Clear.cs b/Platform/STM32F1/Clear.cs
new file mode 100644
index 00000000..4e3f7888
--- /dev/null
+++ b/Platform/STM32F1/Clear.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections;
+using System.Diagnostics;
+using System.Reflection;
+using System.Text;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Microsoft.Win32;
+using NewLife.Log;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Xml;
+using NewLife.Web;
+
+namespace NewLife.Reflection
+{
+    public class ScriptEngine
+    {
+        static void Main()
+        {
+			if(Directory.Exists("ObjD"))Directory.Delete("ObjD",true);
+			if(Directory.Exists("Obj"))Directory.Delete("Obj",true);
+			if(Directory.Exists("List"))Directory.Delete("List",true);
+        }
+    }
+}
diff --git a/Tool/Clear.cs b/Tool/Clear.cs
new file mode 100644
index 00000000..4eb77379
--- /dev/null
+++ b/Tool/Clear.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections;
+using System.Diagnostics;
+using System.Reflection;
+using System.Text;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Microsoft.Win32;
+using NewLife.Log;
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Xml;
+using NewLife.Web;
+
+namespace NewLife.Reflection
+{
+    public class ScriptEngine
+    {
+        static void Main()
+        {
+			if(Directory.Exists("ObjD"))Directory.Delete("ObjD",true);
+			if(Directory.Exists("Obj"))Directory.Delete("Obj",true);
+        }
+    }
+}