auto save

snake.py

 import pygame
 from pygame import locals
+import random
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
@@ -16,9 +17,13 @@ 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_font = pygame.font.Font("neuropol.ttf", 18)  #设置字体和字号大小
+score = 0    #分数设为0
 
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
+apple_x = 360
+apple_y = 300
 
 setheading = "right"
 snake_head = right
@@ -52,7 +57,16 @@ while True:
     else:
         y += 30
     position.append((x, y))
+
+    if apple_x == x and apple_y == y:
+        apple_x = random.randint(0, 21)*30
+        apple_y = random.randint(0, 15)*30
+        score = score + 1
+    else:
         position.pop(0)
+
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -60,9 +74,12 @@ while True:
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x, apple_y))
+    info = "Score " + str(score)
+    text = my_font.render(info, True, (0,0,0))
+    screen.blit(text, (500,30))
+    
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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