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authorPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
committerPeter Bengtsson <mail@peterbe.com>2020-12-08 14:40:17 -0500
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+---
+title: Selection.anchorNode
+slug: Web/API/Selection/anchorNode
+translation_of: Web/API/Selection/anchorNode
+---
+<div>{{ApiRef}}</div>
+
+<h2 id="Summary" name="Summary">概述</h2>
+
+<p><strong><code>Selection.anchorNode </code></strong><code>只读属性</code>返回选区开始位置所属的节点({{domxref("Node")}})。</p>
+
+<h2 id="Syntax" name="Syntax">用法</h2>
+
+<pre class="syntaxbox"><em>sel</em>.anchorNode</pre>
+
+<h2 id="Notes" name="Notes">注意</h2>
+
+<p>用户可能从左至右进行框选(沿着文字顺序)或者从右至左框选(沿着文字顺序的反方向)。锚点位于用户开始选择的位置。可以通过按住Shift和方向键来得知锚点所在的位置。选区的锚点是不会移动的,但是选区的焦点、选区其他的结束位置(多个选区,译者注)可以移动。</p>
+
+<h2 id="说明">说明</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-anchornode', 'Selection.anchorNode')}}</td>
+ <td>{{Spec2('HTML Editing')}}</td>
+ <td>Initial definition</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('Selection API', '##widl-Selection-anchorNode', 'Selection.anchorNode')}}</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>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari (WebKit)</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatVersionUnknown()}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Feature</th>
+ <th>Android</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>Firefox OS</th>
+ <th>IE Phone</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatVersionUnknown()}}</td>
+ <td>1.0</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="See_also" name="See_also">相关链接</h2>
+
+<ul>
+ <li>{{domxref("Selection")}}, 此属性所属接口。</li>
+</ul>