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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: document.width
+slug: Web/API/Document/width
+translation_of: Web/API/Document/width
+---
+<div>
+ {{ApiRef}} {{Obsolete_header}}</div>
+<div class="geckoVersionNote">
+ <p>{{gecko_callout_heading("6.0")}}</p>
+ <p>从Gecko 6.0开始,<code>不再支持document.width,请使用</code><code>document.body.clientWidth</code>来代替.查看{{domxref("element.clientWidth")}}.</p>
+</div>
+<h2 id="Summary" name="Summary">概述</h2>
+<p>返回当前文档中的{{HTMLElement("body")}}元素的宽度,单位为像素.Internet Explorer不支持该属性.</p>
+<h2 id="Syntax" name="Syntax">语法</h2>
+<pre class="syntaxbox"><em>pixels</em> = document.width;
+</pre>
+<h2 id="Example" name="Example">示例</h2>
+<pre class="brush:js">function init() {
+ alert("当前文档的宽度为 " + document.width + " 像素.");
+}
+</pre>
+<h2 id="Alternatives" name="Alternatives">请使用下面的属性来替代该属性</h2>
+<pre class="syntaxbox">document.body.clientWidth /* &lt;body&gt;元素的宽度 */
+document.documentElement.clientWidth /* &lt;html&gt;元素的宽度 */
+window.innerWidth /* window的宽度 */
+</pre>
+<h2 id="Specification" name="Specification">规范</h2>
+<p>{{DOM0}}</p>
+<h2 id="See_also" name="See_also">相关链接</h2>
+<ul>
+ <li>{{domxref("document.height")}}</li>
+</ul>