location / {
            root   html;          #网站目录
            index  index.php;     #网站主页文件
            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;
            }
}