正则表达式,提取网页中的链接地址

<td class=cate width="45%" style="word-break:break-all">
<a class=M target="_blank" href="http://www.cncfan.com/outurl.asp?url=http://jmfengcai.cn.alibaba.com/athena/companydetail/jmfengcai.html" onMouseDown="return aliclick(this,'?alishop=companylistcompanyname');" target="_blank" class=M>江门市蓬江区凤彩工艺厂</a>
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代码如上.我请问如何用正则表达式,把"http://jmfengcai.cn.alibaba.com/athena/companydetail/jmfengcai.html"提取出来?

CODE代码:

/(http:\/\/\[^" ']+)/gm
/href *= *['"]*(\S+)["']* */gm
根据不同需要选择。