save project

snake.py

@@ -14,7 +14,7 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
 x,y=240,120
-
+position=[(180,90),(180,120),(210,120),(x,y)]
 
 while True:
     for event in pygame.event.get():
@@ -22,6 +22,8 @@ while True:
             # 接收到退出事件后退出程序
             exit()
     x+=30
+    position.append((x,y))
+    position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去