save project

snake.py

 import pygame
 from pygame import locals
-
+import random
+a_x=360
+a_y=300
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -51,6 +53,9 @@ while True:
         y -= 30
     else:
         y += 30
+    if a_x==x and a_y==y:
+        a_x=random.randint(0,660)
+        a_x=random.randint(0,480)
     position.append((x, y))
     position.pop(0)
     # 将背景图画上去
@@ -62,7 +67,7 @@ while True:
         screen.blit(body, position[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()
     FPSCLOCK.tick(3)
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