增加三种识别方法

src/WpfEditor/MainWindow.xaml

@@ -39,6 +39,11 @@
                 <MenuItem Header="显示空白字符" IsCheckable="True" IsChecked="True" Click="ToggleWhitespaces_Click"/>
                 <MenuItem Header="高亮当前行" IsCheckable="True" IsChecked="True" Click="ToggleHighlightCurrentLine_Click"/>
             </MenuItem>
+            <MenuItem Header="识别">
+                <MenuItem Header="wechat" IsCheckable="True" IsChecked="True" Click="OnRecognitionMethod_Click" Tag="wechat"/>
+                <MenuItem Header="ppocr" IsCheckable="True" IsChecked="False" Click="OnRecognitionMethod_Click" Tag="ppocr"/>
+                <MenuItem Header="aliocr" IsCheckable="True" IsChecked="False" Click="OnRecognitionMethod_Click" Tag="aliocr"/>
+            </MenuItem>
         </Menu>
         
         <!-- 工具栏 -->

src/WpfEditor/MainWindow.xaml.cs

@@ -1162,6 +1162,49 @@ namespace WpfEditor
             Editor.HighlightCurrentLine = menuItem.IsChecked;
         }
 
+        private void OnRecognitionMethod_Click(object sender, RoutedEventArgs e)
+        {
+            if (sender is MenuItem clickedItem && clickedItem.Parent is MenuItem parentMenu)
+            {
+                // 取消同级所有菜单项的选中状态
+                foreach (MenuItem item in parentMenu.Items)
+                {
+                    if (item.IsCheckable)
+                    {
+                        item.IsChecked = false;
+                    }
+                }
+                
+                // 设置当前点击的项为选中状态
+                clickedItem.IsChecked = true;
+                
+                // 获取选中的识别方法
+                string method = clickedItem.Tag?.ToString();
+                
+                // 处理识别方法切换逻辑
+                HandleRecognitionMethodChange(method);
+            }
+        }
+
+        private void HandleRecognitionMethodChange(string method)
+        {
+            switch (method)
+            {
+                case "wechat":
+                    // 切换到微信OCR
+                    StatusText.Text = "当前识别方法：微信OCR";
+                    break;
+                case "ppocr":
+                    // 切换到PaddleOCR
+                    StatusText.Text = "当前识别方法：PaddleOCR";
+                    break;
+                case "aliocr":
+                    // 切换到阿里OCR
+                    StatusText.Text = "当前识别方法：阿里OCR";
+                    break;
+            }
+        }
+
         private bool SaveFile()
         {
             if (_currentFilePath == null)