最短匹配

 

正则表达式：<a href="([^>]+)" class="up">下一页</a></div>

[^>]+   红字的含义 不匹配">"符号，从而过滤掉了多余的连接

需要匹配的源代码：       

<div class="page1 mt20"><a  href="http://dili.xilu.com/20180821/1000010001055637.html"  class="up" >首页</a>&nbsp;<a href="http://dili.xilu.com/20180821/1000010001055637.html" class="up">上一页</a>&nbsp;<a href="http://dili.xilu.com/20180821/1000010001055637.html" class="up2">1</a>&nbsp;<a  class='up1' >2</b>&nbsp;<a href="http://dili.xilu.com/20180821/1000010001055637_3.html" class="up2">3</a>&nbsp;<a href="http://dili.xilu.com/20180821/1000010001055637_4.html" class="up2">4</a>&nbsp;<a href="http://dili.xilu.com/20180821/1000010001055637_5.html" class="up2">5</a>&nbsp;<a href="http://dili.xilu.com/20180821/1000010001055637_6.html" class="up2">6</a>&nbsp;<a href="http://dili.xilu.com/20180821/1000010001055637_3.html" class="up">下一页</a></div>

 

匹配结果：

<a href="http://dili.xilu.com/20180821/1000010001055637_3.html" class="up">下一页</a></div> 

 http://dili.xilu.com/20180821/1000010001055637_3.html