url.rewrite-once = ( "" => "" )

rewrites a set of URLs internally in the webserver BEFORE they are handled.
在地址处理前重写地址（地址栏显示地址不重写）

url.rewrite-repeat = ( "" => "" )

The difference between these options is that, while url.rewrite-repeat allows for applying multiple (seperately defined) rewrite rules in a row, url.rewrite-once will cause further rewrite rules to be skipped if the expression was matched.

url.rewrite-repeat 允许多个匹配（或者说允许多次匹配），而 rewrite-once 匹配一次就走掉了。

url.redirect = ( "^/foo" => "http://foo.bar/" )

rewrite 是重写，注意后面的 ，只能是相对路径，如果要跳转到其它网站，要打开
"mod_redirect" 模块，然后

url.redirect = ( "^/abc" => "http://labs.guoshuang.com" )

表示：abc 开头的地址全部跳转到 http://labs.guoshuang.com

其它

url.rewrite: same as url.rewrite-once.
url.rewrite-final: same as url.rewrite-once.

url.rewrite 和 url.rewrite-final 和 url.rewrite-once 作用一样！