並前往https://davidhuang1219.pixnet.net/blog/post/100327458-%E3%80%8E%E7%BE%8E%E5%85%83%E3%80%8F%E5%84%B2%E8%93%84%E9%9A%AA%E5%8F%8A%E5%B9%B4%E9%87%91%E4%BF%9D%E9%9A%AA-%E5%85%A7%E9%83%A8%E5%A0%B1%E9%85%AC%E7%8E%87%28irr%29%E6%AF%94