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()
 
@@ -20,6 +20,8 @@ y=120
 pos=[(180,90),(180,120),(210,120),(x,y)]
 head='right'
 fps=pygame.time.Clock()
+a_x=360
+a_y=300
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -49,6 +51,9 @@ while True:
         tou=up
     pos.append((x,y))
     pos.pop(0)
+    if x==a_x and y==a_y:
+        a_x=random.randint(0,22)*30
+        a_y=random.randint(0,16)*30
     # 将背景图画上去
     screen.blit(background,(0,0))
     # 将贪吃蛇画上去
@@ -57,7 +62,7 @@ while True:
     for i in range(len(pos)-1):
         screen.blit(body,pos[i])
     # 将果实画上去
-    screen.blit(food,(360, 300))
+    screen.blit(food,(a_x, a_y))
     # 刷新画面
     pygame.display.update()
     fps.tick(3)
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