nginx 为 wordpress 增加 rewrite

让wordpress支持伪静态的两种写法：

location / {
        if (-f $request_filename/index.html){
                rewrite (.*) $1/index.html break;
        }
        if (-f $request_filename/index.php){
                rewrite (.*) $1/index.php;
        }
        if (!-f $request_filename){
                rewrite (.*) /index.php;
        }
}

第二种：
location / {
 if (!-e $request_filename) {
  rewrite ^/(index|atom|rsd)\.xml$ http://www.your-web-url.com last;
  rewrite ^([_0-9a-zA-Z-] )?(/wp-.*) $2 last;
  rewrite ^([_0-9a-zA-Z-] )?(/.*\.php)$ $2 last;
  rewrite ^ /index.php last;
 }
}