求教 获取如下href的正则要怎么写
<br />
test.html<br />
<!DOCTYPE html><br />
<html><br />
<head>test</head><br />
<body><br />
<a id="a5" href="111">wawa</a><br />
<a id="a6" href="222">hehe</a><br />
<a id="a7" href="333">haha</a><br />
<a id="a8" href="444">uuuu</a><br />
......<br />
<b><br />
<a id="a1" href="111">wawa</a><br />
<a id="a2" href="222">hehe</a><br />
<a id="a3" href="333">haha</a><br />
<a id="a4" href="444">uuuu</a><br />
</b> <br />
........<br />
</body><br />
</html><br />
