auto save

snake.py

 import pygame
 from pygame import locals
+pygame.init()    # 初始化pygam，为使用pygame做准备
+b = pygame.image.load('bg.png')  #载入背景图
+s = pygame.image.load('right.png') #载入蛇头
+t = pygame.image.load('body.png') #载入身体
+p = pygame.image.load('apple.png')  #载入苹果
+screen = pygame.display.set_mode((660,480)) # 创建一个窗口
 
-# 初始化pygame，为使用硬件做准备
-pygame.init()
-
-# 创建一个窗口
-screen = pygame.display.set_mode((660, 480))
-
-# 背景
-background = pygame.image.load('bg.png')
-right = pygame.image.load('right.png')
-food = pygame.image.load('apple.png')
-body = pygame.image.load('body.png')
-
+f = pygame.time.Clock() #时钟，控制游戏速度
+x,y = 240,120 #初始化蛇头坐标
 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
-    screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
-    # 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))
-    # 将果实画上去
-    screen.blit(food, (360, 300))
-    # 刷新画面
-    pygame.display.update()
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+    x += 30
+    
+    screen.blit(b,(0,0))      #渲染图片素材到窗口
+    screen.blit(s,(x,y))
+    screen.blit(t,(210,120))
+    screen.blit(t,(180,120))
+    screen.blit(t,(150,120))
+    screen.blit(p,(360,300))
+
+    pygame.display.flip() #刷新游戏界面
+    f.tick(3)   #设置游戏帧数