From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001
From: Peter Bengtsson <mail@peterbe.com>
Date: Tue, 8 Dec 2020 14:40:17 -0500
Subject: initial commit

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+---
+title: DeviceMotionEvent.rotationRate
+slug: Web/API/DeviceMotionEvent/rotationRate
+tags:
+  - API
+  - DOM
+  - Firefox OS
+  - 传感器
+  - 运动传感器
+  - 需要示例
+translation_of: Web/API/DeviceMotionEvent/rotationRate
+---
+<p>{{ ApiRef("Device Orientation Events") }}</p>
+
+<p><span class="short_text" id="result_box" lang="zh-CN"><span>返回设备围绕其每个轴（x、y、z）旋转的速率（单位：度/秒）。</span></span></p>
+
+<div class="note"><strong>注意</strong>: 如果设备无法提供此信息，则为null</div>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">var rates = <em>instanceOfDeviceMotionEvent</em>.rotationRate;
+</pre>
+
+<h2 id="值">值</h2>
+
+<p><span class="short_text" id="result_box" lang="zh-CN"><span>rotationRates属性是一个只读对象，用于描述设备围绕其每个轴的旋转速率：</span></span></p>
+
+<dl>
+ <dt><code>alpha</code></dt>
+ <dd><span id="result_box" lang="zh-CN"><span>设备绕其Z轴旋转的速率（</span><span>即绕垂直于屏幕的线旋转）</span></span></dd>
+ <dt><code>beta</code></dt>
+ <dd><span class="short_text" id="result_box" lang="zh-CN"><span>设备绕其X轴旋转的速率（</span><span>即从前到后旋转）</span></span></dd>
+ <dt><code>gamma</code></dt>
+ <dd><span class="short_text" id="result_box" lang="zh-CN"><span>设备绕其Y轴旋转的速率（</span><span>即从一侧到另一侧）</span></span></dd>
+</dl>
+
+<h2 id="说明">说明</h2>
+
+<table class="standard-table">
+ <thead>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+ </thead>
+ <tbody>
+  <tr>
+   <td>{{SpecName('Device Orientation')}}</td>
+   <td>{{Spec2('Device Orientation')}}</td>
+   <td>Initial specification.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</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 (WebKit)</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoDesktop("6")}}</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>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("6")}}</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatNo}}</td>
+   <td>4.2</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="推荐阅读">推荐阅读</h2>
+
+<ul>
+ <li>{{ domxref("DeviceMotionEvent") }}</li>
+ <li>{{ event("devicemotion") }}</li>
+ <li>{{ domxref("window.ondevicemotion") }}</li>
+ <li>{{ event("deviceorientation") }}</li>
+ <li>{{ domxref("DeviceOrientationEvent") }}</li>
+ <li><a href="/en-US/docs/WebAPI/Detecting_device_orientation" title="/en-US/docs/WebAPI/Detecting_device_orientation">Detecting device orientation</a></li>
+ <li><a href="https://developer.mozilla.org/en/DOM/Orientation_and_motion_data_explained" title="Orientation and motion data explained">Orientation and motion data explained</a></li>
+</ul>
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