save project

my_game.py

 import pygame
 from pygame import locals
 import random
-time=0
+
 class Block(pygame.sprite.Sprite):
     def __init__(self,image1,image2,image3):
         super().__init__()
@@ -76,16 +76,19 @@ while True:
 
     time+=1
     if time>60:
-        r=random.randint(0,100)
-        if r >40:
-            obstacle=Block(bush,cacti,stone)
-            block_list.add(obstacle)
         time=0
+        num=random.randint(0,50)
+        if num >20:
+            obstacle=Block
     if aa.rect.x <= 0-aa.rect.width:      # 障碍物消失
         # 创建障碍物对象
         aa=Block(bush,cacti,stone)
     aa.rect.x -= 8
-
+    for prop.rect.x<0-prop.rect.wigth:
+        prop.rect.x-=8
+        screen.bilt(prop.image,(prop.rect.x,prop.rect.y))
+        if prop.rect.x<=0-prop.rect.width:
+            prop.kill()
  
     screen.blit(aa.image, (aa.rect.x, aa.rect.y)) 
     # 刷新画面