auto save

snake.py

 import pygame
 from pygame import locals
+a=input()
 FPSCLOCK=pygame.time.Clock()
 # 初始化pygame，为使用硬件做准备
 pygame.init()
@@ -12,6 +13,7 @@ right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 x,y=240,120
+po=[(180,90),(180,120),(210,120),(x,y)]
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -19,15 +21,16 @@ while True:
             exit()
     # 将背景图画上去
     x  +=  30
+    po.append((x,y))
+    po.pop(0)
     screen.blit(background,(0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right,(x, y))
+    screen.blit(right,po[-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(po)-1):
+        screen.blit(body,po[i])
     # 将果实画上去
     screen.blit(food,(360, 300))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
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+    FPSCLOCK.tick(5)
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