save project

snake.py

 import pygame
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -53,6 +53,11 @@ while True:
         y += 30
     position.append((x, y))
     position.pop(0)
+    if x==apple_x and y==apple_y:
+        apple_x=random.randint(0,21)
+        apple_y=random.randint(0,15)
+        apple_x=apple_x*30
+        apple_y=apple_y*30
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去