From 460d21a05c28a19b03fd434b6272f89c83b4b60a Mon Sep 17 00:00:00 2001
From: 206530230 <1375258642@qq.com>
Date: Sun, 20 Jun 2021 20:44:57 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=20'alien.py'?=
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---
 alien.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/alien.py b/alien.py
index 2c65aa7..6fff291 100644
--- a/alien.py
+++ b/alien.py
@@ -30,4 +30,6 @@ class Alien(Sprite):
         """如果外星人位于屏幕边缘，就返回True"""
         screen_rect = self.screen.get_rect()
         if self.rect.right >= screen_rect.right:
+            return True
+        elif self.rect.left <= 0:
             return True
\ No newline at end of file