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72 lines
8.3 KiB
HTML
72 lines
8.3 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">Descendant Selector ("ancestor descendant")</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/descendant-selector/" target="_blank">Descendant Selector ("ancestor descendant")</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="descendant1"><h2 class="section-title"><span>descendant selector</span></h2>
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<div class="entry-wrapper">
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<p class="desc"><strong>描述: </strong>选择给定的祖先元素的所有后代元素。</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( "ancestor descendant" )</h4>
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<p class="argument"><strong>ancestor: </strong>任何有效的选择器。</p>
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<p class="argument"><strong>descendant: </strong>一个用来筛选后代元素的选择器。</p>
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</li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p> 一个元素的后代可能是该元素的一个孩子，孙子，曾孙等。</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">查找所有表单下的input后代元素。</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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</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> </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">form</span> <span class="rules">{ <span class="rule"><span class="attribute">border</span>:<span class="value"><span class="number">2</span>px green solid;</span></span> <span class="rule"><span class="attribute">padding</span>:<span class="value"><span class="number">2</span>px;</span></span> <span class="rule"><span class="attribute">margin</span>:<span class="value"><span class="number">0</span>;</span></span></span></code></div></div><div class="container"><div class="line"><code> <span class="rule"><span class="attribute">background</span>:<span class="value"><span class="hexcolor">#efe</span>;</span></span> <span class="rule">}</span></code></div></div><div class="container"><div class="line"><code> <span class="tag">div</span> <span class="rules">{ <span class="rule"><span class="attribute">color</span>:<span class="value">red;</span></span> <span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code> <span class="tag">fieldset</span> <span class="rules">{ <span class="rule"><span class="attribute">margin</span>:<span class="value"><span class="number">1</span>px;</span></span> <span class="rule"><span class="attribute">padding</span>:<span class="value"><span class="number">3</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> <span class="tag"><<span class="title">form</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">div</span>></span>Form is surrounded by the green outline<span class="tag"></<span class="title">div</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">label</span>></span>Child:<span class="tag"></<span class="title">label</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">name</span>=<span class="value">"name"</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">fieldset</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">label</span>></span>Grandchild:<span class="tag"></<span class="title">label</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">input</span> <span class="attribute">name</span>=<span class="value">"newsletter"</span> /></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"></<span class="title">fieldset</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">form</span>></span></code></div></div><div class="container"><div class="line"><code> Sibling to form: <span class="tag"><<span class="title">input</span> <span class="attribute">name</span>=<span class="value">"none"</span> /></span></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">"form input"</span>).css(<span class="string">"border"</span>, <span class="string">"2px dotted blue"</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> |