https://blog.wongcw.com/2018/12/09/wordpress%e4%b8%bb%e9%a2%98%e6%96%b0%e5%bb%ba%e9%a1%b5%e9%9d%a2%e9%93%be%e6%8e%a5%e6%94%b9%e4%b8%ba-html%e6%96%b9%e6%b3%95/
wordpress主题新建页面链接改为.html方法