save project

snake.py

 import pygame
 from pygame import locals
+import random
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 background=pygame.image.load('bg.png')
@@ -11,6 +12,8 @@ up=pygame.image.load('up.png')
 down=pygame.image.load('down.png')
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+apple_x=360
+apple_y=360
 setheading="right"
 snake_head=right
 # 创建一个窗口
@@ -43,6 +46,9 @@ while True:
     else:
         y += 30
     position.append((x,y))
+    if x ==apple_x and y ==apple_y:
+        apple_x=random.randint(0,660)
+        apple_y=random.randint(0,480)
     position.pop(0)
     screen.blit(background,(0,0))
     screen.blit(snake_head,position[-1])
@@ -50,7 +56,7 @@ while True:
     for i in range(len(position)-1):
         screen.blit(body,position[i])
 
-    screen.blit(food,(360,300))
+    screen.blit(food,(apple_x,apple_y))
  #   screen.blit(body,(210,120))
   #  screen.blit(body,(180,120))
     pygame.display.update()