Jquery树形菜单默认全部展开了，需要缩起，求解_html/css

Jquery树形菜单默认全部展开了，需要缩起，求解_html/css_WEB-ITnose

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Libérer： 2016-06-24 11:52:39

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个人网上下了一段Jquery树形菜单代码，默认打开页面是全部展开的，需要全部缩起来，只显示第一级，求解修改哪里？

<!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></title><link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" /><link rel="stylesheet" type="text/css" href="css/style.css" /><script type="text/javascript" src="js/jquery-1.7.2.min.js"></script><script type="text/javascript">$(function(){ $('.tree li:has(ul)').addClass('parent_li').find(' > span').attr('title', 'Collapse this branch'); $('.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(); });});</script></head><body><div class="tree well"><ul> <li> <span><i class="icon-minus-sign"></i> Parent2</span> <a style="display:none" href="#">Test</a> <ul> <li> <span ><i class="icon-globe"></i> Child</span> <a style="display:none" href="#">Test</a> </li> <li> <span><i class="icon-globe"></i> Child</span> <a style="display:none" href="#">Test</a> </li> </ul> </li> <li> <span><i class="icon-minus-sign"></i> Parent2</span> <a style="display:none" href="#">Test</a> <ul> <li> <span><i class="icon-globe"></i> Child</span> <a style="display:none" href="#">Test</a> </li> </ul> </li> <li> <span><i class="icon-globe"></i> Parent2</span> </li></ul></div></body></html>

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回复讨论(解决方案)

没有人帮我嘛。。

.addClass('icon-plus-sign').removeClass('icon-minus-sign');

这是增加样式与去除样式。jq里用show()与hide()来显示与隐藏

<!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></title> <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css" /> <link rel="stylesheet" type="text/css" href="css/style.css" /> <script type="text/javascript" src="js/jquery-1.7.2.min.js"></script><script type="text/javascript">$(function(){ $('.tree li:has(ul)').addClass('parent_li').find(' > span').attr('title', 'Collapse this branch'); $('.tree li.parent_li > span').live('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'); $(this).attr('title', 'Collapse this branch').find(' > i').addClass('icon-minus-sign').removeClass('icon-plus-sign'); } e.stopPropagation(); });}); </script> </head><body> <div class="tree well"><ul> <li> <span><i class="icon-minus-sign"></i> Parent2</span> <a style="display:none" href="#">Test</a> <ul> <li> <span ><i class="icon-globe"></i> Child</span> <a style="display:none" href="#">Test</a> </li> <li> <span><i class="icon-globe"></i> Child</span> <a style="display:none" href="#">Test</a> </li> </ul> </li> <li> <span><i class="icon-minus-sign"></i> Parent2</span> <a style="display:none" href="#">Test</a> <ul> <li> <span><i class="icon-globe"></i> Child</span> <a style="display:none" href="#">Test</a> </li> </ul> </li> <li> <span><i class="icon-globe"></i> Parent2</span> </li></ul></div> <script>$('ul li ul:not(:first) li').hide()</script></body></html>

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.addClass('icon-plus-sign').removeClass('icon-minus-sign');

这是增加样式与去除样式。jq里用show()与hide()来显示与隐藏

我给你CSS 你看看那都是替换展开收缩的加减图标用的，icon的css都是图标。

a:link { color: #000000; text-decoration: none;}a:visited { color: #000000; text-decoration: none;}a:hover { color:#999999; text-decoration: underline;}a:active { color: #000000; text-decoration: none;}.tree { min-height:20px; padding:19px; margin-bottom:20px; background-color:#fbfbfb; border:1px solid #999; -webkit-border-radius:4px; -moz-border-radius:4px; border-radius:4px; -webkit-box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05); -moz-box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05); box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05)}.tree li { list-style-type:none; margin:0; padding:10px 5px 0 5px; position:relative}.tree li::before, .tree li::after { content:''; left:-20px; position:absolute; right:auto}.tree li::before { border-left:1px solid #999; bottom:50px; height:100%; top:0; width:1px}.tree li::after { border-top:1px solid #999; height:20px; top:25px; width:25px}.tree li span { -moz-border-radius:5px; -webkit-border-radius:5px; border:1px solid #999999; border-radius:5px; display:inline-block; padding:3px 8px; text-decoration:none}.tree li.parent_li>span { cursor:pointer}.tree>ul>li::before, .tree>ul>li::after { border:0}.tree li:last-child::before { height:30px}.tree li.parent_li>span:hover, .tree li.parent_li>span:hover+ul li span { background:#eee; border:1px solid #94a0b4; color:#000}

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$(function(){ $('.tree li:has(ul)').addClass('parent_li').find(' > span').attr('title', 'Collapse this branch'); $('.tree li.parent_li > span').live('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'); $(this).attr('title', 'Collapse this branch').find(' > i').addClass('icon-minus-sign').removeClass('icon-plus-sign'); } e.stopPropagation(); });}); <script>$('ul li ul:not(:first) li').hide()</script>

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Hi 非常感谢！我要去学习一下这里的live 和 on 作用，<script>$('ul li ul li').hide()</script> 全部缩进。