diff --git a/main.js b/main.js
index 46a22f5..6f5d471 100644
--- a/main.js
+++ b/main.js
@@ -81,7 +81,6 @@ function createTray() {
             label: '退出', click: async () => {
                 await mainWindow.webContents.send('quit');
                 app.quit();
-                mainWindow = null;
             },
             // icon: iconPath,
         },
@@ -155,7 +154,6 @@ app.on('ready', () => {
             case 'quit':
                 await mainWindow.webContents.send('quit');
                 app.quit();
-                mainWindow = null;
                 break;
             case 'maximize':
                 mainWindow.maximize()
diff --git a/src/App.tsx b/src/App.tsx
index f06fb14..cd0bf27 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -81,6 +81,9 @@ const App: React.FC = () => {
                 if ((event.ctrlKey || event.metaKey) && event.key === 'r') {
                     event.preventDefault();
                 }
+                if (event.key === 'F11') {
+                    event.preventDefault();
+                }
             });
         }
         window.addEventListener('resize', handleResize);