auto save

snake.py

 import pygame
 
+from pygame import locals
+
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 
 # 创建一个窗口
-??
\ No newline at end of file
+screen = pygame.display.set_mode((660,480))
+bg = pygame.image.load('bg.png')
+apple = pygame.image.load('apple.png')
+right = pygame.image.load('right.png')
+body = pygame.image.load('body.png')
+x,y=(120,30)
+fps=pygame.time.Clock()
+position = [(30,30),(60,30),(90,30),(x,y)]
+while True:
+    for event in pygame.event.get():
+        if event.type==locals.QUIT:
+            exit()
+    x+=30
+    position.append((x,y))
+    position.pop(0)
+    screen.blit(bg,(0,0))
+    screen.blit(apple,(90,150))
+    screen.blit(right,(x,y))
+    for i in range (len(position)-1):
+        screen.blit(body,position[i])
+    pygame.display.update()
+    fps.tick(3)
+