diff --git a/game_functions.py b/game_functions.py
index 960a858..132ef14 100644
--- a/game_functions.py
+++ b/game_functions.py
@@ -45,4 +45,17 @@ def check_keyup_events(event, ship):
     elif event.key == pygame.K_UP:
         ship.moving_up = False
     elif event.key == pygame.K_DOWN:
-        ship.moving_down = False
\ No newline at end of file
+        ship.moving_down = False
+def check_events(ai_settings, screen, stats, sb, play_button, ship, aliens, bullets):
+    """响应按键和鼠标事件"""
+    for event in pygame.event.get():
+        if event.type == pygame.QUIT:
+            sys.exit()
+        elif event.type == pygame.KEYDOWN:
+            check_keydown_events(event, ai_settings, screen, ship, bullets)
+        elif event.type == pygame.KEYUP:
+            check_keyup_events(event, ship)
+        elif event.type == pygame.MOUSEBUTTONDOWN:
+            mouse_x, mouse_y = pygame.mouse.get_pos()
+
+            check_play_button(ai_settings, screen, stats, sb, play_button, ship, aliens, bullets, mouse_x, mouse_y)