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 +18,8 @@ up = pygame.image.load('up.png')
 down = pygame.image.load('down.png')
 x,y=240,120
 postion=[(180,90),(180,120),(210,120),(x,y)]
+apple_x=360
+apple_y=300
 setheading = "right"
 snake_head = right
 while True:
@@ -45,7 +48,12 @@ while True:
         y-=30
     else:
         y+=30
+
+        
     postion.append((x,y))
+    if x == apple_x and y == apple_y:
+        apple_x=random.randint(0,660)
+        apple_y=random.randint(0,480)
     postion.pop(0)
     screen.blit(background,(0,0))
     screen.blit(snake_head,(postion[-1]))