https://blog.wongcw.com/2018/11/27/%e8%98%8b%e6%9e%9canimoji%e6%9c%aa%e4%be%86%e5%b0%87%e5%bc%95%e5%85%a5%e8%81%b2%e9%9f%b3%e5%9f%ba%e6%96%bc%e7%94%a8%e6%88%b6%e8%a1%a8%e9%81%94%e6%9c%83%e6%9c%89%e5%90%84%e7%a8%ae%e9%9f%b3%e6%95%88/