https://blog.wongcw.com/2019/08/22/autotrade%e6%8a%95%e6%94%be%e9%a6%96%e5%80%8b%e6%b1%bd%e8%bb%8a%e8%87%aa%e5%8b%95%e5%94%ae%e8%b3%a3%e6%a9%9f%ef%bc%9a%e6%89%8b%e6%a9%9f%e6%94%af%e4%bb%98%e4%b8%80%e5%8f%a3%e5%83%b9%e7%8f%be%e5%a0%b4/