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()
@@ -22,6 +23,9 @@ position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 setheading = "right"
 snake_head = right
+apple_x = 360
+apple_y = 300
+score = 0
 
 while True:
     for event in pygame.event.get():
@@ -51,8 +55,18 @@ while True:
         y -= 30
     else:
         y += 30
+    
+    if x == apple_x and y ==apple_y:
+        score += 10
+        num_1 = random.randint(1,22)
+        num_2 = random.randint(1,16)
+        apple_x = (num_1-1)*30
+        apple_y = (num_2-1)*30
+    else:
+        position.pop(0)
+
     position.append((x, y))
-    position.pop(0)
+    
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -62,7 +76,10 @@ 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))
+
+    info = "Score "
+    
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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