diff --git a/win_text_editor/lib/app/services/file_service.dart b/win_text_editor/lib/app/services/file_service.dart
index dbce149..50266ce 100644
--- a/win_text_editor/lib/app/services/file_service.dart
+++ b/win_text_editor/lib/app/services/file_service.dart
@@ -9,18 +9,33 @@ class FileService {
 
     if (await directory.exists()) {
       final entities = directory.listSync();
+
+      // 遍历目录实体并创建FileNode
       for (final entity in entities) {
         nodes.add(
           FileNode(
             name: entity.path.split(Platform.pathSeparator).last,
             path: entity.path,
             isDirectory: entity is Directory,
-            depth: parentDepth + 1, // 关键修复：基于父节点深度+1
+            depth: parentDepth + 1,
             children: [],
           ),
         );
       }
+
+      // 排序：文件夹在前按字母排序，文件在后按字母排序
+      nodes.sort((a, b) {
+        if (a.isDirectory && !b.isDirectory) {
+          return -1; // a是文件夹，b是文件，a排在前面
+        } else if (!a.isDirectory && b.isDirectory) {
+          return 1; // a是文件，b是文件夹，b排在前面
+        } else {
+          // 都是文件夹或都是文件时，按名称字母排序
+          return a.name.compareTo(b.name);
+        }
+      });
     }
+
     return nodes;
   }
 
diff --git a/win_text_editor/lib/main.dart b/win_text_editor/lib/main.dart
index b51b43c..2016b5a 100644
--- a/win_text_editor/lib/main.dart
+++ b/win_text_editor/lib/main.dart
@@ -8,9 +8,9 @@ void main() async {
   // 配置窗口
   await windowManager.ensureInitialized();
   WindowOptions windowOptions = const WindowOptions(
-    size: Size(1200, 800),
+    size: Size(1800, 1200),
     center: true,
-    title: 'Win Text Editor',
+    title: '文本转换',
   );
   windowManager.waitUntilReadyToShow(windowOptions, () async {
     await windowManager.show();
@@ -26,7 +26,7 @@ class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      title: '文本编辑器',
+      title: '文本转换',
       debugShowCheckedModeBanner: false,
       theme: ThemeData(
         primarySwatch: Colors.blue,