diff --git a/my_game.py b/my_game.py
index 0ac4b0f..bf4dc26 100644
--- a/my_game.py
+++ b/my_game.py
@@ -1,5 +1,6 @@
 import pygame
 from pygame import locals
+import random
 
 pygame.init()  # 初始化
 # 创建一个窗口
@@ -10,13 +11,13 @@ background = pygame.image.load('bg.png')    # 背景
 road = pygame.image.load('road.png')      # 路
 stone = pygame.image.load('stone.png')      # 石头
 cacti = pygame.image.load('cacti.png')      # 仙人掌
-apple = pygame.image.load('bush.png')      # 灌木丛
+bush = pygame.image.load('bush.png')      # 灌木丛
 hero = [pygame.image.load('hero1.png'),pygame.image.load('hero2.png'),pygame.image.load('hero3.png'),pygame.image.load('hero4.png'),pygame.image.load('hero5.png')]
 index = 0 
 y=400
 t=30
 jumpState="running"
-obstacle=random.choice([bush,stnoe,cacti])
+obstacle=random.choice([bush,stone,cacti])
 rect=obstacle.get_rect()
 rect.y=1000
 rect.y=500-rect.height
@@ -49,11 +50,11 @@ while True:
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))
     screen.blit(wukong, (150,y))
-    if rext.x<=0-rect.width:
+    if rect.x<=0-rect.width:
         abstacle=random.choice([bush,stone,cacti])
         rect=obstacle.get_rect()
         rect.x=1000
-        rect.y=500-rectheight
+        rect.y=500-rect.height
         rect.x-=8
         screen.blit(abstacle(rect.x,rect.y))
     # 刷新画面