写了一个html树形结构但是怎么才可以让他打开html页面的时候显示的是只有两个节点

zhangyikai321 2015-11-30 01:40:18
代码贴出来了
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jquery实现多级树形分类可折叠菜单特效代码</title>

<!--图标样式-->
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" />

<!--主要样式-->
<link rel="stylesheet" type="text/css" href="css/style.css" />



</head>
<body>

<div class="tree well">
<ul>
<li>
<span><i class="icon-folder-open"></i> Parent</span> <a href="">Goes somewhere</a>
<ul>
<li>
<span><i class="icon-minus-sign"></i> Child</span> <a href="">Goes somewhere</a>
<ul>
<li>
<span><i class="icon-leaf"></i> Grand Child</span> <a href="">Goes somewhere</a>
</li>
</ul>
</li>
<li>
<span><i class="icon-minus-sign"></i> Child</span> <a href="">Goes somewhere</a>
<ul>
<li>
<span><i class="icon-leaf"></i> Grand Child</span> <a href="">Goes somewhere</a>
</li>
<li>
<span><i class="icon-minus-sign"></i> Grand Child</span> <a href="">Goes somewhere</a>
<ul>
<li>
<span><i class="icon-minus-sign"></i> Great Grand Child</span> <a href="">Goes somewhere</a>
<ul>
<li>
<span><i class="icon-leaf"></i> Great great Grand Child</span> <a href="">Goes somewhere</a>
</li>
<li>
<span><i class="icon-leaf"></i> Great great Grand Child</span> <a href="">Goes somewhere</a>
</li>
</ul>
</li>
<li>
<span><i class="icon-leaf"></i> Great Grand Child</span> <a href="">Goes somewhere</a>
</li>
<li>
<span><i class="icon-leaf"></i> Great Grand Child</span> <a href="">Goes somewhere</a>
</li>
</ul>
</li>
<li>
<span><i class="icon-leaf"></i> Grand Child</span> <a href="">Goes somewhere</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<span><i class="icon-folder-open"></i> Parent2</span> <a href="">Goes somewhere</a>
<ul>
<li>
<span><i class="icon-leaf"></i> Child</span> <a href="">Goes somewhere</a>
</li>
</ul>
</li>
</ul>
</div>

<div class="tree">
<ul>
<li>
<span><i class="icon-calendar"></i> 2013, Week 2</span>
<ul>
<li>
<span class="badge badge-success"><i class="icon-minus-sign"></i> Monday, January 7: 8.00 hours</span>
<ul>
<li>
<a href=""><span><i class="icon-time"></i> 8.00</span> – Changed CSS to accomodate...</a>
</li>
</ul>
</li>
<li>
<span class="badge badge-success"><i class="icon-minus-sign"></i> Tuesday, January 8: 8.00 hours</span>
<ul>
<li>
<span><i class="icon-time"></i> 6.00</span> – <a href="">Altered code...</a>
</li>
<li>
<span><i class="icon-time"></i> 2.00</span> – <a href="">Simplified our approach to...</a>
</li>
</ul>
</li>
<li>
<span class="badge badge-warning"><i class="icon-minus-sign"></i> Wednesday, January 9: 6.00 hours</span>
<ul>
<li>
<a href=""><span><i class="icon-time"></i> 3.00</span> – Fixed bug caused by...</a>
</li>
<li>
<a href=""><span><i class="icon-time"></i> 3.00</span> – Comitting latest code to Git...</a>
</li>
</ul>
</li>
<li>
<span class="badge badge-important"><i class="icon-minus-sign"></i> Wednesday, January 9: 4.00 hours</span>
<ul>
<li>
<a href=""><span><i class="icon-time"></i> 2.00</span> – Create component that...</a>
</li>
</ul>
</li>
</ul>
</li>
<li>
<span><i class="icon-calendar"></i> 2013, Week 3</span>
<ul>
<li>
<span class="badge badge-success"><i class="icon-minus-sign"></i> Monday, January 14: 8.00 hours</span>
<ul>
<li>
<span><i class="icon-time"></i> 7.75</span> – <a href="">Writing documentation...</a>
</li>
<li>
我向往出来就是一个树根 树枝什么的都不打开
<span><i class="icon-time"></i> 0.25</span> – <a href="">Reverting code back to...</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>

</body>
</html>
打开是这样的
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zhangyikai321 2015-12-01
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引用 楼主 zhangyikai321 的回复:
代码贴出来了 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>jquery实现多级树形分类可折叠菜单特效代码</title> <!--图标样式--> <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" /> <!--主要样式--> <link rel="stylesheet" type="text/css" href="css/style.css" /> </head> <body> <div class="tree well"> <ul> <li> <span><i class="icon-folder-open"></i> Parent</span> <a href="">Goes somewhere</a> <ul> <li> <span><i class="icon-minus-sign"></i> Child</span> <a href="">Goes somewhere</a> <ul> <li> <span><i class="icon-leaf"></i> Grand Child</span> <a href="">Goes somewhere</a> </li> </ul> </li> <li> <span><i class="icon-minus-sign"></i> Child</span> <a href="">Goes somewhere</a> <ul> <li> <span><i class="icon-leaf"></i> Grand Child</span> <a href="">Goes somewhere</a> </li> <li> <span><i class="icon-minus-sign"></i> Grand Child</span> <a href="">Goes somewhere</a> <ul> <li> <span><i class="icon-minus-sign"></i> Great Grand Child</span> <a href="">Goes somewhere</a> <ul> <li> <span><i class="icon-leaf"></i> Great great Grand Child</span> <a href="">Goes somewhere</a> </li> <li> <span><i class="icon-leaf"></i> Great great Grand Child</span> <a href="">Goes somewhere</a> </li> </ul> </li> <li> <span><i class="icon-leaf"></i> Great Grand Child</span> <a href="">Goes somewhere</a> </li> <li> <span><i class="icon-leaf"></i> Great Grand Child</span> <a href="">Goes somewhere</a> </li> </ul> </li> <li> <span><i class="icon-leaf"></i> Grand Child</span> <a href="">Goes somewhere</a> </li> </ul> </li> </ul> </li> <li> <span><i class="icon-folder-open"></i> Parent2</span> <a href="">Goes somewhere</a> <ul> <li> <span><i class="icon-leaf"></i> Child</span> <a href="">Goes somewhere</a> </li> </ul> </li> </ul> </div> <div class="tree"> <ul> <li> <span><i class="icon-calendar"></i> 2013, Week 2</span> <ul> <li> <span class="badge badge-success"><i class="icon-minus-sign"></i> Monday, January 7: 8.00 hours</span> <ul> <li> <a href=""><span><i class="icon-time"></i> 8.00</span> – Changed CSS to accomodate...</a> </li> </ul> </li> <li> <span class="badge badge-success"><i class="icon-minus-sign"></i> Tuesday, January 8: 8.00 hours</span> <ul> <li> <span><i class="icon-time"></i> 6.00</span> – <a href="">Altered code...</a> </li> <li> <span><i class="icon-time"></i> 2.00</span> – <a href="">Simplified our approach to...</a> </li> </ul> </li> <li> <span class="badge badge-warning"><i class="icon-minus-sign"></i> Wednesday, January 9: 6.00 hours</span> <ul> <li> <a href=""><span><i class="icon-time"></i> 3.00</span> – Fixed bug caused by...</a> </li> <li> <a href=""><span><i class="icon-time"></i> 3.00</span> – Comitting latest code to Git...</a> </li> </ul> </li> <li> <span class="badge badge-important"><i class="icon-minus-sign"></i> Wednesday, January 9: 4.00 hours</span> <ul> <li> <a href=""><span><i class="icon-time"></i> 2.00</span> – Create component that...</a> </li> </ul> </li> </ul> </li> <li> <span><i class="icon-calendar"></i> 2013, Week 3</span> <ul> <li> <span class="badge badge-success"><i class="icon-minus-sign"></i> Monday, January 14: 8.00 hours</span> <ul> <li> <span><i class="icon-time"></i> 7.75</span> – <a href="">Writing documentation...</a> </li> <li> 我向往出来就是一个树根 树枝什么的都不打开 <span><i class="icon-time"></i> 0.25</span> – <a href="">Reverting code back to...</a> </li> </ul> </li> </ul> </li> </ul> </div> </body> </html> 打开是这样的
<script type="text/javascript"> $(function(){ $('.tree li:has(ul)').addClass('parent_li').find(' > span').attr('title', 'Collapse this branch'); $(this).parent('li.parent_li').find(' > ul > li').hide('fast'); $('.tree li.parent_li > span').on('click', function (e) { var children = $(this).parent('li.parent_li').find(' > ul > li'); if (children.is(":visible")) { children.hide('fast'); $(this).attr('title', 'Expand this branch').find(' > i').addClass('icon-plus-sign').removeClass('icon-minus-sign'); } else { children.show('fast'); $(this).attr('title', 'Collapse this branch').find(' > i').addClass('icon-minus-sign').removeClass('icon-plus-sign'); } e.stopPropagation(); }); }); 代码就是在这里但是我试了一下 还是不可以 啊
guoquanhua007 2015-11-30
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代码太长,不看啦。提供一个思路给你。 可以利用div嵌套默认不展示的数据display:none。
内容概要:本文档是2025年全国广播电视技术能手竞赛IPTV专业的竞赛内容大纲,旨在指导参赛选手准备比赛。竞赛分为理论和实操两大部分。理论部分涵盖基本知识、基础理论和专业知识,包括法律法规、技术标准、IPTV技术基础、信号传输与分发、网络和数据安全等。实操部分则涉及IPTV系统设备、仪器设备的操作使用和指标测量。具体内容包括IPTV系统架构、传输技术与指标、设备配置及维护、专业技能如测量工具使用、视音频指标测量、直播点播协议分析、播出网络性能测量、网络安全数据分析以及系统故障排查等。 适合人群:从事或有意从事IPTV相关工作的技术人员,尤其是有志于参加全国广播电视技术能手竞赛的专业人士。 使用场景及目标:①帮助参赛选手全面了解并掌握IPTV相关的法规文件和技术标准;②提升选手对IPTV系统架构、传输技术和设备配置的理解;③增强选手在实际操作中的测量、分析和故障排查能力;④确保选手能够熟练运用各种测量工具和分析软件进行视音频指标测量和网络安全数据分析。 阅读建议:由于文档内容详尽且专业性强,建议读者在学习过程中结合实际案例和操作练习,同时参考相关技术文献,以便更好地理解和掌握竞赛所需的知识和技能。

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