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65 lines
6.8 KiB
HTML
65 lines
6.8 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">Child Selector ("parent > child")</h1>
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<div class="entry-meta">
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所属分类：<span class="category"><a href="/category/selectors/">选择器</a> > <a href="/category/selectors/hierarchy-selectors/">层级</a></span>
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<span class="pull-right">英文文档：<a href="https://api.jquery123.com/child-selector/" target="_blank">Child Selector ("parent > child")</a></span>
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</div><!-- .entry-meta -->
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</header><!-- .entry-header -->
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<!-- .entry-header -->
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<div class="entry-content">
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<article class="entry selector" id="child1"><h2 class="section-title"><span>child selector</span></h2>
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<div class="entry-wrapper">
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<p class="desc"><strong>描述: </strong>选择所有指定“parent”元素中指定的"child"的直接子元素。</p>
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<ul class="signatures"><li class="signature">
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<h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.0/">1.0</a></span>jQuery( "parent > child" )</h4>
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<p class="argument"><strong>parent: </strong>任何有效的选择器。</p>
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<p class="argument"><strong>child: </strong>用来筛选子元素的选择器。</p>
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</li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p>作为一个CSS选择器，这个子元素组合器被Safari, Firefox, Opera, Chrome, 和 Internet Explorer 7 及以上版本等现代浏览器支持，但尤其不被Internet Explorer6及以下版本支持。然而在jQuery中，这个选择器（与其他所有选择器）能在所有支持的浏览器中工作，包括IE6。</p>
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<p>这个子元素组合器(E <strong>></strong> F)和(E F)都作为后代组合，但是他们有所不同，更具体的是(E <strong>></strong> F)它只会选择第一级的后代。</p>
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</div>
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<section class="entry-examples" id="entry-examples"><header><h2 class="underline">例子:</h2></header><div class="entry-example" id="example-0">
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<h4><span class="desc">为无序列表 <ul class="topnav">的所有直接子元素加上边框。</span></h4>
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<div class="syntaxhighlighter xml ">
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<table>
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<tbody>
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<tr>
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<td class="gutter">
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<div class="line n22">22</div>
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</td>
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<td class="code">
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<pre><div class="container"><div class="line"><code><span class="doctype"><!DOCTYPE html></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">html</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">head</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">style</span>></span><span class="css"></span></code></div></div><div class="container"><div class="line"><code><span class="tag">body</span> <span class="rules">{ <span class="rule"><span class="attribute">font-size</span>:<span class="value"><span class="number">14</span>px;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">style</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">script</span> <span class="attribute">src</span>=<span class="value">"https://code.jquery.com/jquery-latest.js"</span>></span><span class="javascript"></span><span class="tag"></<span class="title">script</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">head</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">body</span>></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">ul</span> <span class="attribute">class</span>=<span class="value">"topnav"</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span>></span>Item 1<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span>></span>Item 2</code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">ul</span>></span><span class="tag"><<span class="title">li</span>></span>Nested item 1<span class="tag"></<span class="title">li</span>></span><span class="tag"><<span class="title">li</span>></span>Nested item 2<span class="tag"></<span class="title">li</span>></span><span class="tag"><<span class="title">li</span>></span>Nested item 3<span class="tag"></<span class="title">li</span>></span><span class="tag"></<span class="title">ul</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">li</span>></span>Item 3<span class="tag"></<span class="title">li</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">ul</span>></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag"><<span class="title">script</span>></span><span class="javascript">$(<span class="string">"ul.topnav > li"</span>).css(<span class="string">"border"</span>, <span class="string">"3px double red"</span>);</span><span class="tag"></<span class="title">script</span>></span></code></div></div><div class="container"><div class="line"><code> </code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">body</span>></span></code></div></div><div class="container"><div class="line"><code><span class="tag"></<span class="title">html</span>></span></code></div></div></pre>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<h4>Demo:</h4>
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<div class="demo code-demo"></div>
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</div></section>
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</div></article> </div>
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</article> |