save project

snake.py

@@ -64,6 +64,8 @@ while True:
         position.pop(0)
         position.pop(0)
     info="Score"+":"+str(score)
     info="Score"+":"+str(score)
     text=my_font.render(info,True,(180,150,170))
     text=my_font.render(info,True,(180,150,170))
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去