save project

snake.py

@@ -12,14 +12,18 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down = pygame.image.load('down.png')
 x,y = 240,120
 sb=[(180,90),(180,120),(210,120),(x,y)]
+sth='right'
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-
+        if event.type == locals.KEYDOWN:
     x+=30
     sb.append((x,y))
     sb.pop(0)