jquery nth-child()选择器的简单应用

通过网上咨询使用这个选择器便很容易的解决。特此记录一下。
下面是主要的代码
js脚本:

代码如下:

<script type="text/javascript"> 
$(document).ready( 
function () { 
//每隔五行给li加一个样式 
$('.article_li li:nth-child(5n)').addClass('liborder'); 
$('.article_li li:last').addClass('liborder'); 
} 
); 
</script>

html代码:

代码如下:

<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">物业税:长沙暂不试点物业税:长沙暂不试点</a> 
</li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
<li> 
<label class="datename"> 
<span>2010-06-12 08:37:59 </span> 
</label> 
<a href="/a/xinwenzixun/caishuidongtai/20100612/2323.html">物业税:长沙暂不试点</a> </li> 
</ul>

具体的用法这里就不写了,大家可以参考
//www.jb51.net/css/28294.html 
//www.jb51.net/article/23617.htm
效果图如下:
jquery nth-child()选择器的简单应用

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