save project

snake.py

@@ -19,7 +19,7 @@ while True:
             # 接收到退出事件后退出程序
             exit()
     # 将背景图画上去
-    screen.blit(background, (0, 0))
+    screen.blit(background, (x , y))
     # 将贪吃蛇画上去
     screen.blit(right, (240, 120))
     # 将贪吃蛇的身体画上去