---
title: Selection.toString()
slug: Web/API/Selection/toString
translation_of: Web/API/Selection/toString
---
<div>
<div>
<div>{{ ApiRef("DOM") }}{{SeeCompatTable}}</div>
</div>
</div>

<p><strong><code>Selection.toString()</code></strong>返回代表当前selection对象的字符串,例如当前选择的文本文字.</p>

<h2 id="Syntax" name="Syntax">语法</h2>

<pre class="syntaxbox"><em>str</em> =<em> sel</em>.toString()
</pre>

<h3 id="返回值">返回值</h3>

<ul>
 <li><em><code>str</code></em> 代表selection的字符串.</li>
</ul>

<h3 id="Parameters" name="Parameters">参数</h3>

<p><em>无.</em></p>

<h2 id="Description" name="Description">描述</h2>

<p>此方法返回当前被选中的文本文字.</p>

<p>在<a href="en/JavaScript">JavaScript</a>中, 当selection对象作为字符串类型使用时，此方法会被自动调用:</p>

<pre class="brush: js">alert(window.getSelection()) // 被调用时
alert(window.getSelection().toString())  // 真实情况
</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-stringifier', 'Selection.toString()')}}</td>
   <td>{{Spec2('HTML Editing')}}</td>
   <td>Initial definition</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</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</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>