save project

snake.py

 import pygame
+import random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -20,6 +21,9 @@ down = pygame.image.load('down.png')
 
 x,y = 240,120
 position = [(180,90),(180,120),(210,120),(x,y)]
+apple_x=360
+apple_y=300
+
 setheading = 'right'
 snake_head = right
 
@@ -52,6 +56,9 @@ while True:
         y += 30
 
     position.append((x,y))
+    if apple_x == x and apple_y == y:
+        apple_y = random.randint(0,480)
+        apple_x = random.randint(0,660)
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
@@ -65,7 +72,7 @@ while True:
     #screen.blit(body, (180, 120))
     #screen.blit(body, (180, 90))
     # 将果实画上去
-    screen.blit(food, (360, 300))
+    screen.blit(food, (apple_x,apple_y))
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
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