nginx配置伪静态 ，省略index.php

Nginx URL重写（rewrite）配置及信息详解  :  https://www.cnblogs.com/czlun/articles/7010604.html

-e $request_filename + nginx内置变量 ： https://www.cnblogs.com/infy/p/8550282.html

去掉index.php: https://blog.youkuaiyun.com/ltstud/article/details/78475918

$request_filename ： 请求资源的路径