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---
title: Selection.selectAllChildren()
slug: Web/API/Selection/selectAllChildren
translation_of: Web/API/Selection/selectAllChildren
---
<div>
<div>
<div>{{ ApiRef("DOM") }}{{SeeCompatTable}}</div>
</div>
</div>
<p>Selection.selectAllChildren()把指定元素的所有子元素设为选中区域，并取消之前的选中区域。</p>
<h2 id="Syntax" name="Syntax">用法</h2>
<pre class="syntaxbox"><em>sel</em>.selectAllChildren(<em>parentNode</em>)
</pre>
<h3 id="Parameters" name="Parameters">参数</h3>
<dl>
<dt><em><code>parentNode</code></em></dt>
<dd>所有parentNode元素的子元素会被设为选中区域，parentNode本身除外。</dd>
</dl>
<h2 id="Examples" name="Examples">举例</h2>
<pre class="eval">footer = document.getElementById("footer");
window.getSelection().selectAllChildren(footer);
/* Everything inside the footer is now selected *</pre>
<h2 id="详细">详细</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">说明</th>
<th scope="col">状态</th>
<th scope="col">注释</th>
</tr>
<tr>
<td>{{SpecName('HTML Editing', '#dom-selection-selectallchildren', 'Selection.selectAllChildren()')}}</td>
<td>{{Spec2('HTML Editing')}}</td>
<td>Initial definition</td>
</tr>
<tr>
<td>{{SpecName('Selection API', '#widl-Selection-selectAllChildren-void-Node-node', 'Selection.selectAllChildren()')}}</td>
<td>{{Spec2('Selection API')}}</td>
<td>Current</td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility" name="Browser_compatibility">浏览器兼容性</h2>
<div id="compat-desktop">
<p>{{Compat("api.Selection.selectAllChildren")}}</p>
</div>
<h2 id="See_also" name="See_also">相关链接</h2>
<ul>
<li>{{domxref("Selection")}}, 此方法所属接口。</li>
</ul>
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