带参数的apache重写规则

http://www.domain.com/results.php?state=WA&city=Seattle&sub=algebra

http://www.domain.com/results/WA/Seattle/algebra

http://www.domain.com/results.php?state=WA&city=Seattle

http://www.domain.com/results/WA/Seattle

RewriteRule ^results/(.*)/(.*)/(.*)$  /results.php?state=$1&city=$2&sub=$3 [L]

RewriteRule ^results/([^/]+)/([^/]+)/([^/]+)$  /results.php?state=$1&city=$2&sub=$3 [L]
RewriteRule ^results/([^/]+)/([^/]+)$ /results.php?state=$1&city=$2