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+---
+title: Selection.focusNode
+slug: Web/API/Selection/focusNode
+translation_of: Web/API/Selection/focusNode
+---
+<div>{{ ApiRef("DOM") }}{{SeeCompatTable}}</div>
+
+<p><strong><code>Selection.focusNode</code></strong><code>是只读的</code><strong><code>,</code></strong><font><font>返回所选内容的结束位置部分所属的节点</font></font>.</p>
+
+<p>用户可能会从左到右(按文字方向) 或从右到左 (按文字相反方向)进行选择. focusNode就是用户选择时最后停下来所处的元素节点. 当你同时按下shift键和任何一个方向键来改变选择时,你就能看到:选择的结束位置在移动, 但是选择的锚点-起始位置不会改变.</p>
+
+<h2 id="Syntax" name="Syntax"><font><font>语法</font></font></h2>
+
+<pre class="syntaxbox"><em>node</em> =<em> sel</em>.focusNode
+</pre>
+
+<h2 id="相关规范">相关规范</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">规范</th>
+ <th scope="col">状态</th>
+ <th scope="col">备注</th>
+ </tr>
+ <tr>
+ <td>{{SpecName('HTML Editing', '#dom-selection-focusnode', 'Selection.focusNode')}}</td>
+ <td>{{Spec2('HTML Editing')}}</td>
+ <td>Initial definition</td>
+ </tr>
+ <tr>
+ <td>{{SpecName('Selection API', '#widl-Selection-focusNode', 'Selection.focusNode')}}</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>特性</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari (WebKit)</th>
+ </tr>
+ <tr>
+ <td>基础特性支持</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>特性</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>基础特性支持</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">参考</h2>
+
+<ul>
+ <li>{{domxref("Selection")}}, Selection接口规范.</li>
+</ul>