auto save

snake.py

 import random
 import pygame
 from pygame import locals
-
-# 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))
 FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
-
-# 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')      # 头 朝右
 food = pygame.image.load('apple.png')       # 食物 苹果
@@ -27,7 +21,6 @@ score=0
 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()
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_RIGHT and setheading != "left":
@@ -42,8 +35,6 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-
-    # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
     elif setheading == "left":
@@ -53,11 +44,8 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    # 将背景图画上去
     screen.blit(background, (0, 0))
-    # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
-    # 将贪吃蛇的身体画上去
     info='Score' + str(score)
     text=my_font.render(info,True,(0,0,0))
     screen.blit(text,(540,10))
@@ -71,10 +59,8 @@ while True:
         position.pop(0)
     for i in range(len(position)-1):
         screen.blit(body,position[i])
-    # 将果实画上去
     screen.blit(food, (apple_x,apple_y))
-    # 刷新画面
     pygame.display.update()
-    if x<0 or x>630 or y<0 or y>450 :
+    if x<0 or x>630 or y<0 or y>450:
         exit()
     FPSCLOCK.tick(8)
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