save project

snake.py

@@ -7,7 +7,7 @@ pygame.init()
 screen = pygame.display.set_mode((660, 480))
 x=240
 y=120
-s=((180,90),(180,120),(210,120),(x,y))
+s=[(180,90),(180,120),(210,120),(x,y)]
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
@@ -37,4 +37,4 @@ while True:
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()
-    
\ No newline at end of file
+    s.tick(3)
\ No newline at end of file