auto save

snake.py

@@ -71,7 +71,7 @@ while True:
     for i in range(len(position)-1):
         screen.blit(body, position[i])
     info="Score"+str(score)
-    wen=zi.render(info,True,(0,0,0))
+    wen=zi.render(info,True,(100,0,100))
     screen.blit(wen,(500,10))
     # 将果实画上去
     screen.blit(food, (apple_x, apple_y))