https://blog.wongcw.com/2021/12/08/%e4%bf%9d%e6%99%82%e6%8d%b7ipo%e5%8f%af%e8%83%bd%e8%a6%81%e4%be%86%e4%ba%86-%e5%a4%a7%e7%9c%be%e6%b1%bd%e8%bb%8a%e8%82%a1%e5%83%b9%e7%9b%a4%e4%b8%ad%e6%bc%b2%e8%b6%858/