diff --git a/snake.py b/snake.py
index 495c492..f79086f 100644
--- a/snake.py
+++ b/snake.py
@@ -1,5 +1,4 @@
 import pygame
-import random
 from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
@@ -25,7 +24,6 @@ apple_y=300
 
 setheading = "right"
 snake_head = right
-
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -57,7 +55,7 @@ while True:
     position.append((x, y))
     if x ==apple_x and y==apple_y:
         apple_x=random.randint(0,660)
-        apple_y=random.randint(0.480)
+        apple_y=random.randint(0,480)
     
     position.pop(0)
     # 将背景图画上去