save project

snake.py

@@ -52,7 +52,7 @@ while True:
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
-    screen.blit(snake_head position[-1])
+    screen.blit(snake_head,position[-1])
     for i in range(len(position)-1):
         screen.blit(body,position[i])
     # 将贪吃蛇画上去