diff --git a/my_game.py b/my_game.py
index 9524788..095d693 100644
--- a/my_game.py
+++ b/my_game.py
@@ -4,18 +4,13 @@ import random
 
 pygame.init()  # 初始化
 # 创建一个窗口
-
-
-
-
-
-
-
-
-
-
-
-
+class Block():
+    def __init__(self,image1,image2,image3):
+        super().__init__()
+        self.image = random.choice([image1, image2, image3 ])
+        self.rect = self.image.get_rect()
+        self.rect.x = 1000
+        self.rect.y = 500 - self.rect.height
 
 screen = pygame.display.set_mode((1000, 600))
 FPS = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
@@ -37,10 +32,10 @@ jumpState = "runing"
 t = 30
 road_x = 0
 bg_x = 0
-obstacle = random.choice([bush, stone, cacti])
-rect = obstacle.get_rect()
-rect.x = 1000
-rect.y = 500 - rect.height
+time=0
+block_list =pygame.sprite.Group()
+#obstacle = random.choice([bush, stone, cacti])
+
 
 while True:
     for event in pygame.event.get():
@@ -82,16 +77,29 @@ while True:
         road_x = 0
          # 远处背景
     screen.blit(road, (road_x,500))     # 路
-    screen.blit(wukong, (150, y))     # 悟空
-
-    if rect.x <= 0-rect.width:      # 障碍物消失
+    screen.blit(wukong, (150, y))
+
+    time +=1
+    if time >=60:
+        time=0
+        num = random.randint(0,50)
+        if num > 20:        
+            obstacle = Block(bush,cacti,stone)
+            block_list.add(obstacle)
+    for sprite in block_list:
+        sprite.rect.x -=8
+        screen.blit(sprite.image, (sprite.rect.x, sprite.rect.y))
+    #if rect.x <= 0-rect.width:      # 障碍物消失
         # 创建障碍物对象
-        obstacle = random.choice([bush,stone,cacti])
-        rect = obstacle.get_rect()
-        rect.x = 1000
-        rect.y = 500 - rect.height
-    rect.x -= 8
-    screen.blit(obstacle, (rect.x, rect.y)) 
+        #obstacle = random.choice([bush,stone,cacti])
+        #rect = obstacle.get_rect()
+        #rect.x = 1000
+        #rect.y = 500 - rect.height
+    #rect.x -= 8
+    screen.blit(sprite.image, (sprite.rect.x, sprite.rect.y)) 
+    if sprite.rect.x <=0-sprite.rect.width:
+        sprite.kill()
+
     # 刷新画面
     pygame.display.update()
     FPS.tick(60)
\ No newline at end of file