diff --git a/src/appdelegate.h b/src/appdelegate.h
index 216d9be..579b873 100644
--- a/src/appdelegate.h
+++ b/src/appdelegate.h
@@ -31,6 +31,7 @@ public:
 
 signals:
     void updateDisplay(const QString &packageName);
+    void updateFinished(bool success); //传递是否完成更新
 
 private slots:
     void updateSpinner(); // 新增槽函数
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 466a730..2c43e9e 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -264,7 +264,7 @@ void MainWindow::runAptssUpgrade()
 void MainWindow::closeEvent(QCloseEvent *event)
 {
 
-        QMessageBox::StandardButton reply = QMessageBox::question(this, "确认关闭", "正在更新，是否确认关闭窗口？", QMessageBox::Yes | QMessageBox::No);
+    QMessageBox::StandardButton reply = QMessageBox::question(this, "确认关闭", "正在更新，是否确认关闭窗口？", QMessageBox::Yes | QMessageBox::No);
 }
 MainWindow::~MainWindow()
 {