一个不错的静态规则nginx converter在线转换：http://winginx.com/en/htaccess

# nginx configuration
location ~* \.(htm)$ {
    rewrite ^/(.*)\.htm$ /slug.php?uri=$1 last;
}

www.sz126.net网站静态规则

# nginx configuration
location ~* \.(htm)$ {
    rewrite "^(.*)/(.+?).htm(.*?)$" $1/index.php?$2.htm$3 last;
}