auto save

snake.py

 import pygame
 import pygame
 from pygame import locals
 from pygame import locals
+
 x,y=240,120
 x,y=240,120
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 pygame.init()
@@ -7,18 +8,39 @@ re=pygame.time.Clock();re.tick(3)# 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 screen = pygame.display.set_mode((660, 480))
 se=[(180,90),(180, 120),(210, 120),(x,y)]
 se=[(180,90),(180, 120),(210, 120),(x,y)]
 
 
-
+S='right'
+ss=right
 # 背景
 # 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')
+
 
 
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
+        if event.type==locals.KEPDOWN:
+            if event.key==locals.K_RIGHT  and s !='left':
+                s='right'
+                ss=right
+            if event.key==locals.K_UP and s !='down':
+                s='up'
+                ss=up
+            if event.key==locals.K_DOWN and s !='up':
+                s='down'
+                ss=down
+            if event.key==locals.K_LEFT and s !='right':
+                s='left'
+                ss=left 
+    if s=='right'
+        x+=30
+    else s=='up':
+        y-=30    
+    else s=='down':
+        y+=30
+    else s=='left':
+        x-=30
+                
+                
     x+=30
     x+=30
     se.append((x,y))
     se.append((x,y))
     se.pop(0)
     se.pop(0)