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---
title: Document.createRange()
slug: Web/API/Document/createRange
translation_of: Web/API/Document/createRange
---
<div>{{APIRef("DOM")}}</div>
<p>回傳一 {{domxref("Range")}} 物件。</p>
<h2 id="Syntax" name="Syntax">語法</h2>
<pre class="syntaxbox">range = document.createRange();
</pre>
<p><code>創造 range</code> 為 {{domxref("Range")}} 物件.</p>
<h2 id="Example" name="Example">示例</h2>
<pre class="brush:js">var range = document.createRange();
range.setStart(startNode, startOffset);
range.setEnd(endNode, endOffset);
</pre>
<h2 id="Notes" name="Notes">註意</h2>
<p>當 <code>Range</code> 被創建之後,必須先設定其範圍初始點及結束點, 才能使用大部分 {{domxref("Range")}} 所提供的方法。</p>
<h2 id="Specification" name="Specification">規範</h2>
<ul>
<li><a class="external" href="http://www.w3.org/TR/DOM-Level-2-Traversal-Range/ranges.html#Level2-DocumentRange-method-createRange">DOM Level 2 Range: DocumentRange.createRange</a></li>
</ul>
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