网上找了好久，具体规则我也编写不来，英文文档看不懂。
下面我就把规则贴出来，目前我用的是最简单的那个规则。
我还找到了 lighttpd 的 Mod_rewrite 的 WIKI，全英文的看不懂，留着备用
链接：Mod_rewrite
url.rewrite-if-not-file = (
"^/(admin|usr)/(.*)" => "/$1/$2",
"^/(.*)$" => "/index.php/$1"
)
url.rewrite-if-not-file = (
"^/(.*).htm$" => "/index.php/$1.htm",
"^/archives/(.*)" => "/index.php/archives/$1",
"^/category/(.*)" => "/index.php/category/$1",
"^/([0-9]+)/([0-9]+)/$" => "/index.php/$1/$2/",
"^/tag/(.*)/$" => "/index.php/tag/$1",
"^/search/(.*)/$" => "/index.php/search/$1",
"^/(.)page/(.)" => "/index.php/$1page/$2",
"^/(feed.*)" => "/index.php/$1",
"^/action/(.*)" => "/index.php/action/$1",
"^/(.*)comment" => "/index.php/$1/comment
)
url.rewrite = (
"^/(admin|usr)/(.*)" => "/$1/$2",
"^/(.*).html$" => "/index.php/$1.html",
"^/archives/(.*)" => "/index.php/archives/$1",
"^/category/(.*)" => "/index.php/category/$1",
"^/([0-9]+)/([0-9]+)/$" => "/index.php/$1/$2/",
"^/tag/(.*)/$" => "/index.php/tag/$1",
"^/search/(.*)/$" => "/index.php/search/$1",
"^/(.)page/(.)" => "/index.php/$1page/$2",
"^/(feed.*)" => "/index.php/$1",
"^/action/(.*)" => "/index.php/action/$1",
"^/(.*)comment" => "/index.php/$1/comment"
)