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73 lines
7.0 KiB
HTML
73 lines
7.0 KiB
HTML
<article class="" id="post-">
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<header class="entry-header">
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<h1 class="entry-title">.position()</h1>
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<div class="entry-meta">
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所属分类：<span class="category"><a href="/category/css/">CSS</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/offset/">偏移</a></span><span class="category-divider"> | </span><span class="category"><a href="/category/manipulation/">DOM 操作</a> > <a href="/category/manipulation/style-properties/">CSS 属性</a></span>
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<span class="pull-right">英文文档：<a href="https://api.jquery123.com/position/" target="_blank">.position()</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 method" id="position1"><h2 class="section-title">
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<span class="name">.position()</span><span class="returns">返回: <a href="/Types/#Object">Object</a></span>
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</h2>
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<div class="entry-wrapper">
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<p class="desc"><strong>描述: </strong>获取匹配元素中第一个元素的当前坐标，相对于offset parent的坐标。( 译者注：offset parent指离该元素最近的而且被定位过的祖先元素 )</p>
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<ul class="signatures"><li class="signature" id="position">
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<h4 class="name">
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<span class="version-details">添加的版本: <a href="/category/version/1.2/">1.2</a></span>.position()</h4>
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<ul><li><div class="null-signature">这个方法不接受任何参数。</div></li></ul>
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</li></ul>
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<div class="longdesc" id="entry-longdesc">
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<p><code>.position()</code>方法可以取得元素相对于父元素的偏移位置。与<code><a href="/offset">.offset()</a></code>不同, <code>.offset()</code>是获得该元素相对于documet的当前坐标
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当把一个新元素放在同一个容器里面另一个元素附近时，用<code>.position()</code>更好用。</p>
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<p><code>.position()</code>返回一个包含 <code>top</code> 和 <code>left</code>属性的对象.</p>
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<blockquote>
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<p><strong>注意：</strong>jQuery不支持获取隐藏元素的偏移坐标及所占用的边框，边距和填充的大小</p>
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</blockquote>
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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">获取第一个段落的坐标位置：</span></h4>
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<div class="syntaxhighlighter xml ">
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<table>
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<tbody>
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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">div</span> <span class="rules">{ <span class="rule"><span class="attribute">padding</span>:<span class="value"> <span class="number">15</span>px;</span></span><span class="rule">}</span></span></code></div></div><div class="container"><div class="line"><code> <span class="tag">p</span> <span class="rules">{ <span class="rule"><span class="attribute">margin-left</span>:<span class="value"><span class="number">10</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">div</span>></span></code></div></div><div class="container"><div class="line"><code> <span class="tag"><<span class="title">p</span>></span>Hello<span class="tag"></<span class="title">p</span>></span></code></div></div><div class="container"><div class="line"><code><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">p</span>></span><span class="tag"></<span class="title">p</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></code></div></div><div class="container"><div class="line"><code><span class="keyword">var</span> p = $(<span class="string">"p:first"</span>);</code></div></div><div class="container"><div class="line"><code><span class="keyword">var</span> position = p.position();</code></div></div><div class="container"><div class="line"><code>$(<span class="string">"p:last"</span>).text( <span class="string">"left: "</span> + position.left + <span class="string">", top: "</span> + position.top );</code></div></div><div class="container"><div class="line"><code><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> |