auto save

snake.py

 import pygame
+import random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -16,12 +17,15 @@ body = pygame.image.load('body.png')        # 身体
 left = pygame.image.load('left.png')        # 头 朝左
 up = pygame.image.load('up.png')            # 头 朝上
 down = pygame.image.load('down.png')        # 头 朝下
-
+my_fort=pygame.font.Font("neuropol.ttf",18)
 x, y = 240, 120
+apple_x=360
+apple_y=300
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
+score=0
 
 while True:
     for event in pygame.event.get():
@@ -51,10 +55,20 @@ while True:
         y -= 30
     else:
         y += 30
+    
+    if x==apple_x and y== apple_y:
+        num1=random.randint(1,22)
+        num2=random.randint(1,16)
+        apple_x = 30*num1-30
+        apple_y = 30*num2-30
+    else:
+        position.pop(0)
     position.append((x, y))
-    position.pop(0)
+    
     # 将背景图画上去
     screen.blit(background, (0, 0))
+    if x < 0 or x > 630 or y > 450:
+        exit()
     # 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
@@ -62,7 +76,11 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
     # 刷新画面
+    
+    info="Score:"+str(score)
+    text=my_fort.render(info,True,(0,0,0))
+    screen.blit(text,(540,10))
     pygame.display.update()
     FPSCLOCK.tick(3)
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