diff --git a/Form1.cs b/Form1.cs
index 056b1a5..aeb241b 100644
--- a/Form1.cs
+++ b/Form1.cs
@@ -31,86 +31,75 @@ namespace SlideCombine
 
         private void btnBrowseSource_Click(object sender, EventArgs e)
         {
-            using (FolderBrowserDialog dialog = new FolderBrowserDialog())
+            string selectedPath = ShowOpenFileDialogForFolder("请选择包含PDF文件夹的路径", txtSourcePath.Text);
+            if (!string.IsNullOrEmpty(selectedPath))
             {
-                dialog.Description = "请选择包含PDF文件夹的路径";
-                dialog.ShowNewFolderButton = true;
-                dialog.RootFolder = Environment.SpecialFolder.MyComputer;
-
-                if (!string.IsNullOrEmpty(txtSourcePath.Text))
-                {
-                    try
-                    {
-                        dialog.SelectedPath = txtSourcePath.Text;
-                    }
-                    catch
-                    {
-                        // 如果路径无效，使用默认路径
-                    }
-                }
-
-                if (dialog.ShowDialog() == DialogResult.OK)
-                {
-                    txtSourcePath.Text = dialog.SelectedPath;
-                    LogInfo($"已选择PDF路径: {dialog.SelectedPath}");
-                }
+                txtSourcePath.Text = selectedPath;
+                LogInfo($"已选择PDF路径: {selectedPath}");
             }
         }
 
         private void btnBrowseText_Click(object sender, EventArgs e)
         {
-            using (FolderBrowserDialog dialog = new FolderBrowserDialog())
+            string selectedPath = ShowOpenFileDialogForFolder("请选择包含元数据TXT文件的路径", txtTextPath.Text);
+            if (!string.IsNullOrEmpty(selectedPath))
             {
-                dialog.Description = "请选择包含元数据TXT文件的路径";
-                dialog.ShowNewFolderButton = true;
-                dialog.RootFolder = Environment.SpecialFolder.MyComputer;
-
-                if (!string.IsNullOrEmpty(txtTextPath.Text))
-                {
-                    try
-                    {
-                        dialog.SelectedPath = txtTextPath.Text;
-                    }
-                    catch
-                    {
-                        // 如果路径无效，使用默认路径
-                    }
-                }
-
-                if (dialog.ShowDialog() == DialogResult.OK)
-                {
-                    txtTextPath.Text = dialog.SelectedPath;
-                    LogInfo($"已选择TXT源路径: {dialog.SelectedPath}");
-                }
+                txtTextPath.Text = selectedPath;
+                LogInfo($"已选择TXT源路径: {selectedPath}");
             }
         }
 
         private void btnBrowseOutput_Click(object sender, EventArgs e)
         {
-            using (FolderBrowserDialog dialog = new FolderBrowserDialog())
+            string selectedPath = ShowOpenFileDialogForFolder("请选择合并后TXT文件的输出路径", txtOutputPath.Text);
+            if (!string.IsNullOrEmpty(selectedPath))
             {
-                dialog.Description = "请选择合并后TXT文件的输出路径";
-                dialog.ShowNewFolderButton = true;
-                dialog.RootFolder = Environment.SpecialFolder.MyComputer;
+                txtOutputPath.Text = selectedPath;
+                LogInfo($"已选择最终输出路径: {selectedPath}");
+            }
+        }
 
-                if (!string.IsNullOrEmpty(txtOutputPath.Text))
+        private string ShowOpenFileDialogForFolder(string title, string initialPath)
+        {
+            using (OpenFileDialog dialog = new OpenFileDialog())
+            {
+                dialog.Title = title;
+                dialog.Filter = "文件夹|*.|所有文件|*.*";
+                dialog.FileName = "选择文件夹";
+                dialog.CheckFileExists = false;
+                dialog.CheckPathExists = true;
+                dialog.Multiselect = false;
+                dialog.ValidateNames = false;
+
+                // 设置初始目录
+                if (!string.IsNullOrEmpty(initialPath) && Directory.Exists(initialPath))
                 {
-                    try
-                    {
-                        dialog.SelectedPath = txtOutputPath.Text;
-                    }
-                    catch
-                    {
-                        // 如果路径无效，使用默认路径
-                    }
+                    dialog.InitialDirectory = initialPath;
+                }
+                else
+                {
+                    dialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyComputer);
                 }
 
                 if (dialog.ShowDialog() == DialogResult.OK)
                 {
-                    txtOutputPath.Text = dialog.SelectedPath;
-                    LogInfo($"已选择最终输出路径: {dialog.SelectedPath}");
+                    string selectedPath = Path.GetDirectoryName(dialog.FileName);
+
+                    // 如果用户选择了文件，返回文件所在目录
+                    if (!string.IsNullOrEmpty(selectedPath))
+                    {
+                        return selectedPath;
+                    }
+
+                    // 如果用户只选择了目录（这可能在某些情况下发生）
+                    if (Directory.Exists(dialog.FileName))
+                    {
+                        return dialog.FileName;
+                    }
                 }
             }
+
+            return null;
         }
 
         private void btnClear_Click(object sender, EventArgs e)