这些IIS rewrite是什么意思,rewrite的语法是什么?RewriteRule ^/httpd(?:\.ini|\.parse\.errors).* [F,I,O]RewriteRule /news/(\d+)\.html /index\.asp\?news=$1 [N,I]RewriteCond Host:(.+)RewriteCond Referer:http://\1.*).*RewriteRule .*\.:gif|jpg|p

这些IIS rewrite是什么意思,rewrite的语法是什么?
RewriteRule ^/httpd(?:\.ini|\.parse\.errors).* [F,I,O]
RewriteRule /news/(\d+)\.html /index\.asp\?news=$1 [N,I]
RewriteCond Host:(.+)
RewriteCond Referer:http://\1.*).*
RewriteRule .*\.:gif|jpg|png|exe|rar|zip) /block.gif [I,O]
RewriteRule /go/([^/]+)(?:/([^/]+))?/index.cfm\?inc=$1(?2&p=$2) [I,L]
rewrite的语法是什么?我想自己写rewrit语句!

有一部份是正则表达试!例如
([^/]+)(?:/([^/]+))?