files/zh-cn/mozilla/tech/xul/attribute/label/index.html


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---
title: label
slug: Mozilla/Tech/XUL/Attribute/label
tags:
  - XUL Attributes
  - XUL Reference
translation_of: Archive/Mozilla/XUL/Attribute/label
---
<div class="noinclude">
 <span class="breadcrumbs xulRefAttr_breadcrumbs">« <a href="/zh-CN/docs/XUL_Reference">XUL Reference home</a></span></div>
<dl>
 <dt>
  <code id="a-label"><a href="https://developer.mozilla.org/zh-CN/docs/Mozilla/Tech/XUL/Attribute/label">label</a></code></dt>
 <dd>
  Type: <em>string</em></dd>
 <dd>
  The label that will appear on the element. If this is left out, no text appears.<br>
  label 在元素上显示。如果左侧出界，则不显示任何文字。</dd>
</dl>
<div class="noinclude">
 <h3 id="See_also" name="See_also">See also</h3>
 <ul>
  <li><a href="/cn/XUL/Attribute/treeitem.label" title="cn/XUL/Attribute/treeitem.label">treeitem.label</a>, <code><a href="/cn/XUL/label" title="cn/XUL/label">&lt;label&gt;</a></code> element</li>
 </ul>
 <h4 id="Examples_in_JavaScript" name="Examples_in_JavaScript">Examples in JavaScript</h4>
 <pre>&lt;label value="Whaw" id="the-big-label" command="the-big-button"/&gt;
&lt;button id="the-big-button" label="Click me"
	oncommand="alert(document.getElementById('the-big-label').value)"/&gt;

&lt;label id="myLabel" value="My label"/&gt;
&lt;button label="Click me"
	oncommand="document.getElementById('myLabel').setAttribute('value','Value changed');" /&gt;

&lt;checkbox label="my Checkbox" id="myCheckboX"/&gt;
&lt;button label="Another click"
	oncommand="document.getElementById('myCheckboX').setAttribute('label','Still not checked');"/&gt;
&lt;button label="Show label of checkbox"
	oncommand="alert( document.getElementById('myCheckboX').getAttribute('label') )"/&gt;
</pre>
</div>
<p></p>