---
title: ImageData.data
slug: Web/API/ImageData/data
translation_of: Web/API/ImageData/data
---
<p>{{APIRef("Canvas API")}}</p>

<p>只读的 <code><strong>ImageData.data</strong></code> 属性，返回 <span style="line-height: 1.5;">{{jsxref("Uint8ClampedArray")}}</span><span style="line-height: 1.5;"> ，描述</span><span style="line-height: 1.5;">一个一维数组，包含以 RGBA 顺序的数据，数据使用  </span><code style="font-style: normal; line-height: 1.5;">0</code><span style="line-height: 1.5;"> 至 </span><code style="font-style: normal; line-height: 1.5;">255</code><span style="line-height: 1.5;">（包含）的整数表示。 </span></p>

<h2 id="语法">语法</h2>

<pre class="syntaxbox"><em>imagedata</em>.data
</pre>

<h2 id="示例">示例</h2>

<pre class="brush: js  language-js">var imagedata = new ImageData(100, 100);
imagedata.data; // Uint8ClampedArray[40000]
</pre>

<h2 id="Specification" name="Specification">规范描述</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('HTML WHATWG', 'scripting.html#dom-imagedata-data', 'ImageData.data')}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td> </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>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoDesktop("14")}}</td>
   <td>9.0</td>
   <td>9.0</td>
   <td>3.1</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</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>{{CompatGeckoMobile("14")}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="参见">参见</h2>

<ul>
 <li>{{domxref("ImageData.height")}}</li>
 <li>{{domxref("ImageData.width")}}</li>
</ul>