--- title: GlobalEventHandlers.onfocus slug: Web/API/GlobalEventHandlers/onfocus translation_of: Web/API/GlobalEventHandlers/onfocus --- <div>{{ ApiRef("HTML DOM") }}</div> <h3 id="概述">概述</h3> <p><strong>onfocus</strong> 属性用来获取或设置当前元素的<code>focus</code>事件的事件处理函数.</p> <h3 id="语法">语法</h3> <pre class="eval">element.onfocus = <em>event handling code</em> </pre> <h3 id="备注">备注</h3> <p>当前元素获得键盘焦点时会触发<code>focus</code>事件.</p> <p>在IE中,几乎所有类型的元素都会触发<code>focus</code>事件, 但在Gecko中,只有少数几种类型的元素会触发<code>focus</code>事件.</p> <h3 id="规范">规范</h3> <p>不属于任何公开的规范.</p> <p>{{ languages( { "fr": "fr/DOM/element.onfocus","en": "en/DOM/element.onfocus" } ) }}</p>