---
title: Range.startContainer
slug: Web/API/Range/startContainer
translation_of: Web/API/Range/startContainer
---
<p> </p>

<p> </p>

<pre dir="ltr" id="tw-target-text">Range.startContainer是只读属性，返回Range开始的节点。要更改节点的起始位置，请使用Range.setStart（）方法。</pre>

<p> </p>

<h2 id="Syntax" name="Syntax">Syntax</h2>

<pre class="syntaxbox"><em>startRangeNode</em> = <em>range</em>.startContainer;
</pre>

<h2 id="Example" name="Example">Example</h2>

<pre class="brush: js">range = document.createRange();
range.setStart(startNode,startOffset);
range.setEnd(endNode,endOffset);
startRangeNode = range.startContainer;
</pre>

<h2 id="Specification" name="Specification">Specifications</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('DOM WHATWG', '#dom-range-startcontainer', 'Range.endContainer')}}</td>
   <td>{{Spec2('DOM WHATWG')}}</td>
   <td>No change.</td>
  </tr>
  <tr>
   <td>{{SpecName('DOM2 Traversal_Range', 'ranges.html#Level-2-Range-attr-startParent', 'Range.startContainer')}}</td>
   <td>{{Spec2('DOM2 Traversal_Range')}}</td>
   <td>Initial specification.</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<p>{{CompatibilityTable}}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Edge</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoDesktop("1.0")}}</td>
   <td>9.0</td>
   <td>9.0</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Edge</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoMobile("1.0")}}</td>
   <td>9.0</td>
   <td>9.0</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="See_also">See also</h2>

<ul>
 <li><a href="/en-US/docs/DOM/DOM_Reference" title="/en-US/docs/DOM/DOM_Reference">The DOM interfaces index</a></li>
</ul>