Nginxの中国語と英語のサイト構成

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       80;
        server_name  preview.xx.com;
        if ($http_accept_language ~* ^zh){
           set $lang "/zh";
        }
        if ($http_accept_language !~* ^zh){
           set $lang "/en";
        }
        root /testngx/;
        location / {       # 可有多个 location 用于配置路由地址
           index $lang.html;
        }
     }
}