diff --git a/src/gui/main_window.py b/src/gui/main_window.py
index 403ff2d..53a9e1f 100644
--- a/src/gui/main_window.py
+++ b/src/gui/main_window.py
@@ -584,3 +584,17 @@ class NavigationButton(QPushButton):
         if icon_path:
             self.setIcon(QIcon(icon_path))
             self.setIconSize(QSize(20, 20))
+
+
+def main():
+    """
+    应用程序入口
+
+    初始化并显示主窗口
+    """
+    app = QApplication(sys.argv)
+
+    window = MainWindow()
+    window.show()
+
+    sys.exit(app.exec())