save project

Untitled-1.py.py

@@ -62,7 +62,8 @@ while True:
         score=score+1
     else:
         pos.pop(0)
-
+        if x<0 or x>360 or y<0 or y>450:
+            exit()
 
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, pos[-1])#