並前往https://blackmore.pixnet.net/blog/post/37325809-%5B%E9%81%8A%E6%88%B2%5Dfft-%E7%8D%85%E5%AD%90%E6%88%B0%E7%88%AD%283%29-%E6%9C%80%E5%BE%8C%E7%9A%84%E6%BA%AB%E6%83%85
