https://blog.wongcw.com/2019/08/15/%e6%88%96%e8%a8%b1%e5%9c%a8%e7%b0%a1%e6%ad%b7%e8%a3%a1%e4%bd%bf%e7%94%a8bitmoji%e6%98%af%e9%80%99%e4%b8%96%e7%95%8c%e4%b8%8a%e6%9c%80%e7%b3%9f%e7%b3%95%e7%9a%84%e4%b8%bb%e6%84%8f/