save project

snake.py

@@ -5,3 +5,8 @@ pygame.init()
 
 # 创建一个窗口
 screen=pygame.display.set_mode((660,880))
+while True:
+    for event in pygame.event.get():
+        if event.type == locals.QUIT:
+            #接收到退出事件后退出程序
+            exit()
\ No newline at end of file