save project

my_game.py

@@ -83,7 +83,11 @@ while True:
             obstacle=Block(bush,cacti,stone)
             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<=8-prop.rect.width:
+            prop.kill()
     # 刷新画面
     pygame.display.update()
     FPS.tick(60)
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