url重写，不同域名转向问题

[xwf111]

<RewriterRule>
<LookFor>http://www.31hu.com </LookFor>
<SendTo>~/default.aspx?CHANNEL=COM </SendTo>
</RewriterRule>
<RewriterRule>
<LookFor>http://www.31hu.cn </LookFor>
<SendTo>~/default.aspx?CHANNEL=CN </SendTo>
</RewriterRule>
<RewriterRule>
<LookFor>HTTP://028.31HU.COM </LookFor>
<SendTo>~/default.aspx?CLASSID=028 </SendTo>
</RewriterRule>
<RewriterRule>
<LookFor>~/d(\d+)\.aspx </LookFor>
<SendTo>~/default.aspx?id=$1 </SendTo>
</RewriterRule>
这样不不行呢？
这些参数怎样传递；不行呢，那位帮我解决一下嘛

[xwf111]

顶上去，看有没人晓得