 
<script type="text/javascript"> 
$(document).ready( 
function () { 
//每隔五行給li加一個樣式 
$('.article_li li:nth-child(5n)').addClass('liborder'); 
$('.article_li li:last').addClass('liborder'); 
} 
); 
</script> 

html代碼：

復制代碼代碼如下:

 
<ul class="article_li"> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點物業(yè)稅:長沙暫不試點</a> 
</li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物業(yè)稅:長沙暫不試點</a> </li> 
</ul> 