save project

my_game.py

@@ -34,7 +34,7 @@ t = 30
 bg_x=0
 road_x=0
 time=0
-block_list=pygame.sprite.Groap()
+block_list=pygame.sprite.Group()
 
 while True:
     for event in pygame.event.get():
@@ -81,13 +81,14 @@ while True:
     time+=1
     if time>=60:
         r=random.randint(0,100)
-        if r>40:
+        if r > 40:
             obstacle=Block(bush,cacti,stone)
-            time=0
-        for prop in block_list:
-            prop.rect.x-=8    
-            screen.blit(prop.image, (prop.rect.x, prop.rect.y)) 
-            if prop.rect.x-=0-prop.rect.width:
-                prop.kill()
+            block_list.add(obstacle)
+        time=0
+    for prop in block_list:
+        prop.rect.x -= 8
+        screen.blit(prop.image, (prop.rect.x, prop.rect.y))
+        if prop.rect.x <= 0-prop.rect.width:
+            prop.kill()
     # 刷新画面
     pygame.display.update()
\ No newline at end of file