save project

snake.py

@@ -13,21 +13,22 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+pos=[(180,90),(180,120),(210,120),(x,y)]
 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()
+    x+=30
+    pos.append((x,y))
+    pos.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     screen.blit(right, (x,y))
-    x+=30
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    for i in range(3):
+        screen.blit(body, pos[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面