nginx 学习：将二级目录转发到本地目录

Nginx的location配置无效，alias和root的区别，此类问题

# nginx 1.20.x
location ~ ^/cms_kk/(.*)$ {
  alias /www/wwwroot/cms_kk/$1;
}

# nginx 1.1x.x
location /cms_kk {
  alias /www/wwwroot/cms_kk/;
}