save project

snake.py

@@ -18,6 +18,8 @@ while True:
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     x+=30
     x+=30
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
@@ -29,6 +31,7 @@ while True:
     screen.blit(body, (180, 90))
     screen.blit(body, (180, 90))
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
+    sc
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
     a=pygame.time.Clock();a.tick(3)
     a=pygame.time.Clock();a.tick(3)
\ No newline at end of file