本书作者是来自日本的Yutaro Ogawa(小川熊太郎），作者的github上源码是日文注释的，这个repository把它翻译成中文，并加上一些自己的见解。
The author of the book is Yutaro Ogawa from Japan, and the explaining notes of the source code is written by Japanese. Therefore, I translate these notes into Chinese to convinent readers.