improve:PPT模块

Ink Canvas/MainWindow_cs/MW_PPT.cs

@@ -81,6 +81,9 @@ namespace Ink_Canvas {
         // 在类中添加字段
         private bool wasFloatingBarFoldedWhenEnterSlideShow = false;
 
+        // 新增：用于控制WPS强制关闭提示只弹一次
+        private static bool hasShownWpsForceCloseWarning = false;
+
         private void BtnCheckPPT_Click(object sender, RoutedEventArgs e) {
             try {
                 pptApplication =
@@ -1473,20 +1476,29 @@ namespace Ink_Canvas {
 
                 if (!allSaved)
                 {
-                    // 弹窗提示用户
-                    bool userContinue = false;
-                    Application.Current.Dispatcher.Invoke(() =>
+                    // 弹窗提示用户（只弹一次）
+                    if (!hasShownWpsForceCloseWarning)
                     {
-                        var result = MessageBox.Show(
-                            "检测到有未保存的WPS文档，强制关闭可能导致数据丢失。是否继续？",
-                            "警告", MessageBoxButton.YesNo, MessageBoxImage.Warning);
-                        userContinue = (result == MessageBoxResult.Yes);
-                    });
-                    if (!userContinue)
+                        hasShownWpsForceCloseWarning = true;
+                        bool userContinue = false;
+                        Application.Current.Dispatcher.Invoke(() =>
+                        {
+                            var result = MessageBox.Show(
+                                "检测到有未保存的WPS文档，强制关闭可能导致数据丢失。是否继续？",
+                                "警告", MessageBoxButton.YesNo, MessageBoxImage.Warning);
+                            userContinue = (result == MessageBoxResult.Yes);
+                        });
+                        if (!userContinue)
+                        {
+                            LogHelper.WriteLogToFile("用户取消了强制关闭WPS进程", LogHelper.LogType.Trace);
+                            StopWppProcessCheckTimer();
+                            return;
+                        }
+                    }
+                    else
                     {
-                        LogHelper.WriteLogToFile("用户取消了强制关闭WPS进程", LogHelper.LogType.Trace);
-                        StopWppProcessCheckTimer();
-                        return;
+                        // 已弹过，直接跳过或默认继续
+                        LogHelper.WriteLogToFile("WPS强制关闭提示已弹出，自动继续。", LogHelper.LogType.Trace);
                     }
                 }
 
@@ -1531,6 +1543,7 @@ namespace Ink_Canvas {
                 }
                 finally
                 {
+                    hasShownWpsForceCloseWarning = false; // 复位，便于下次检测
                     StopWppProcessCheckTimer();
                 }
             }