diff --git a/snake.py b/snake.py
index 537316e..dbff4be 100644
--- a/snake.py
+++ b/snake.py
@@ -1,4 +1,5 @@
 import pygame
+import random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -15,11 +16,14 @@ food = pygame.image.load('apple.png')       # 食物 苹果
 body = pygame.image.load('body.png')        # 身体
 left = pygame.image.load('left.png')        # 头 朝左
 up = pygame.image.load('up.png')            # 头 朝上
-down = pygame.image.load('down.png')        # 头 朝下
+down = pygame.image.load('down.png')  
+
+     # 头 朝下
 
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
-
+apple_x = 360
+apple_y = 240 
 setheading = "right"
 snake_head = right
 
@@ -41,7 +45,9 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-
+    if x == apple_x and y == apple_y:
+        apple_x = random.randint(0,660)
+        apple_y = random.randint(0,480)
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
@@ -62,7 +68,7 @@ while True:
         screen.blit(body, position[i])
 
     # 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()
     FPSCLOCK.tick(3)
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