auto save

snake.py

@@ -12,21 +12,30 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+clo=pygame.time.Clock()
+x=240
+y=120
+a=[(180, 90),(180, 120),(210, 120),(240,120)]
 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()
     # 将背景图画上去
+    x += 30
+    a.append((x,y))
+    a.pop(0)
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(right, a[-1])
+
     # 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(len(a)-1):
+        screen.blit(body,a[i])
+    
+    
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    clo.tick(3)
\ No newline at end of file