https://blog.wongcw.com/2020/10/27/%e8%9e%9e%e8%9f%bb%e9%9b%86%e5%9c%98ipo%e5%b0%87%e8%9e%8d%e8%b3%87345%e5%84%84%e7%be%8e%e5%85%83%e8%b6%85%e6%b2%99%e7%89%b9%e9%98%bf%e7%be%8e%e5%89%b5%e6%ad%b7%e5%8f%b2%e4%b9%8b%e6%9c%80/