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---
title: OffscreenCanvas.height
slug: Web/API/OffscreenCanvas/height
translation_of: Web/API/OffscreenCanvas/height
---
<div>{{APIRef("Canvas API")}} {{SeeCompatTable}}</div>
<p>设置或者获取{{domxref("OffscreenCanvas")}} 对象的高度.</p>
<h2 id="语法">语法</h2>
<pre class="syntaxbox"><var>var <em>pxl</em> = <em>offscreen</em></var>.height;
<em>offscreen</em>.height = <em>pxl</em>;</pre>
<dl>
</dl>
<h2 id="例子">例子</h2>
<p>创建一个新的离屏 canvas，获取或者设置离屏 canvas 的高度：</p>
<pre class="brush: js">var offscreen = new OffscreenCanvas(256, 256);
offscreen.height; // 256
offscreen.height = 512;
</pre>
<h2 id="规范">规范</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', "#dom-offscreencanvas-height", "OffscreenCanvas.height")}}</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>
<div>
<p>{{Compat("api.OffscreenCanvas.height")}}</p>
</div>
<h2 id="另外参阅">另外参阅</h2>
<ul>
<li>{{domxref("OffscreenCanvas")}}, 此属性所属的接口。</li>
</ul>
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