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()
 
@@ -56,11 +55,13 @@ while True:
         y += 30
     position.append((x, y))
     # 贪吃蛇吃到了苹果
+    num_x = random.randint(1,22)
+    num_y = random.randint(1,16)
     if x == apple_x and y == apple_y:
-        apple_x = random.randint(0, 660)
-        apple_y = random.randint(0, 480)
-        
-    position.pop(0)
+        apple_x = num_x*30-30
+        apple_y = num_y*30-30
+    else:
+        position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去