save project

snake.py

@@ -53,7 +53,9 @@ while True:
         score=score+10
     else:
         p.pop(0)
-    if x<0 or
+    if x<0 or x>630 or y<0 or y>450:
+        print("你死了")
+        break 
     screen.blit(background, (0, 0))
     screen.blit(snake_head, (x,y))
     for i in range(len(p)-1):