# \[jQuery 事件\] focus()

**URL:** <https://www.isharkfly.com/t/jquery-focus/9022>\
**Category:** 前端\
**Created:** [March 21, 2013, 2:52am UTC](https://www.isharkfly.com/t/jquery-focus/9022 "2013-03-21T02:52:16Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![honeymoose](https://www.isharkfly.com/user_avatar/www.isharkfly.com/honeymoose/32/20796_2.png) [@honeymoose](https://www.isharkfly.com/u/honeymoose)\
**Post date:** [March 21, 2013, 2:52am UTC](https://www.isharkfly.com/t/jquery-focus/9022/1 "2013-03-21T02:52:16Z")

</div>

触发每一个匹配元素的focus事件。

这将触发所有绑定的focus函数，注意，某些对象不支持focus方法。

返回值  
jQuery

示例  
当页面加载后将 id 为 ‘login’ 的元素设置焦点:

jQuery 代码:`$(document).ready(function(){
  $("#login").focus();
}); `