文件管理路径伪静态：

location /admin {
#alias "D:/wwwroot/demo.xuxiaokun.com/functions";
proxy_pass https://demo.xuxiaokun.com/functions/admin.php;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-NginX-Proxy true;
#try_files $uri $uri/ /index.php$is_args$args;
#index index.html index.htm index.php;
#autoindex on;
}