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+---
+title: HTMLMediaElement.volume
+slug: Web/API/HTMLMediaElement/volume
+translation_of: Web/API/HTMLMediaElement/volume
+---
+<p>{{APIRef("HTML DOM")}}</p>
+
+<p><strong><code>HTMLMediaElement.volume</code></strong> 属性可设置媒体播放时的音量。</p>
+
+<h2 id="Syntax" name="Syntax">语法</h2>
+
+<pre class="syntaxbox">var <em>volume</em> = <em>video</em>.volume; //1</pre>
+
+<h3 id="值">值</h3>
+
+<p>取值为 0 到 1 的双精度值。0 为静音，1 为音量最大时的值。</p>
+
+<h2 id="示例">示例</h2>
+
+<pre>var obj = document.createElement('audio');
+console.log(obj.volume); // 1
+obj.volume = 0.75;</pre>
+
+<h2 id="规范">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 WHATWG', "#dom-media-volume", "HTMLMediaElement.volume")}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td></td>
+  </tr>
+  <tr>
+   <td>{{SpecName('HTML5 W3C', "embedded-content-0.html#htmlmediaelement", "HTMLMediaElement.volume")}}</td>
+   <td>{{Spec2('HTML5 W3C')}}</td>
+   <td></td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+
+
+<p>{{Compat("api.HTMLMediaElement.volume")}}</p>
+
+<h2 id="See_Also" name="See_Also">更多</h2>
+
+<ul>
+ <li>定义该属性的接口 {{domxref("HTMLMediaElement")}}.</li>
+ <li>{{domxref("HTMLMediaElement.muted")}}</li>
+</ul>