nginx路由重定向

location / { 
  if ($http_host !~ "m.xxx.cn"){
    rewrite ^/web/(.*)/bdu(d?).htm(.*)$ /rewrite.php?custom_dir=$1&bdu_num=$2 last;
  }
  rewrite ^/seo_web/(.*)/index.html(.*)$ /seo_web/replace.php?custom_dir=$1;
}