並前往https://changvicky.pixnet.net/blog/post/32255301-%E5%93%81%E5%9A%90-%7C-bubble-tree%E4%B9%8B%E9%9F%93%E5%9C%8B%E7%9A%84%E7%8F%8D%E7%8F%A0%E5%A5%B6%E8%8C%B6