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()
 
@@ -17,6 +17,8 @@ up= pygame.image.load('up.png')
 down= pygame.image.load('down.png')
 x,y=240,120
 p=[(180,90),(180,120),(210,120),(x,y)]
+apple_x=360
+apple_y=300
 setheading='right'
 
 s=right
@@ -47,6 +49,9 @@ while True:
     else:
         y+=30            
     p.append((x,y))
+    if x==apple_x and y==apple_y:
+        apple_x=random.randint(0,630)
+        apple_y=random.randint(0,450)
     p.pop(0)
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
@@ -57,7 +62,7 @@ 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()
     fps.tick(4)
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