save project

snake.py

@@ -59,9 +59,9 @@ while True:
     if x == apple_x and y ==apple_y:
         apple_x = (randint(0,22))*30
         apple_y = (randint(0,16))*30
+    position.append((x, y))
     else:
-        position.pop(0)            
-    
+        position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去