save project

snake.py

@@ -70,7 +70,8 @@ while True:
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
     for i in range(len(position)-1):
         screen.blit(body,position[i])
         screen.blit(body,position[i])
-
+    if x>630 or x<0 or y>450 or y<0:
+        exit()
     #screen.bilt(body(210,120))
     #screen.bilt(body(210,120))
     #screen.blit(body, (180, 120))
     #screen.blit(body, (180, 120))
     #screen.blit(body, (180, 90))
     #screen.blit(body, (180, 90))