save project

snake.py

@@ -14,8 +14,13 @@ 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')
 s='right'
 s=[(180,90),(180,120),(210,120),(x,y)]
+
+
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -24,12 +29,16 @@ while True:
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_RIGHT and s !="left":
                 s='right'
+                sank_head=right
             if event.key == locals.K_RIGHT and s !="right":
                 s='left'
+                sank_head=left
             if event.key == locals.K_RIGHT and s !="up":
                 s='down'
+                sank_head=down
             if event.key == locals.K_RIGHT and s !="down":
                 s='up'
+                sank_head=up
 
     if s=="right":
         x += 30
@@ -53,6 +62,7 @@ sb.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
+    screen.blit(snake_head,s[-1])
     screen.blit(right, (x, y))
     # 将贪吃蛇的身体画上去
     screen.blit(body, (210, 120))