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---
title: Touch.screenY
slug: Web/API/Touch/screenY
tags:
- touch
translation_of: Web/API/Touch/screenY
---
<p>{{ ApiRef() }}</p>
<h3 id="Summary" name="Summary">概述</h3>
<p>返回触点相对于屏幕上边沿的Y坐标. 不包含页面滚动的偏移量.</p>
<h3 id="Syntax" name="Syntax">语法</h3>
<pre class="eval">var <em>y</em> = <em>touchItem</em>.screenY;
</pre>
<h3 id="Return_Value" name="Return_Value">返回值</h3>
<dl>
<dt><code>y</code></dt>
<dd>触点相对于屏幕上边沿的Y坐标. 不包含页面滚动的偏移量.</dd>
</dl>
<h3 id="Specification" name="Specification">标准定义</h3>
<p><a class="external" href="http://www.w3.org/TR/touch-events/" title="http://www.w3.org/TR/touch-events/">Touch Events Specification</a></p>
<h3 id="相关链接">相关链接</h3>
<ul>
<li>{{ domxref("Touch.screenX") }}</li>
<li>{{ domxref("Touch.clientY") }}</li>
<li>{{ domxref("Touch.pageY") }}</li>
</ul>
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