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personnages

返回值:jQueryfocus([[data],fn])

概述

触发每一个匹配元素的focus事件。

可以通过鼠标点击或者键盘上的TAB导航触发。这将触发所有绑定的focus函数,注意,某些对象不支持focus方法。

参数

fnFunctionV1.0

在每一个匹配元素的focus事件中绑定的处理函数。

[data],fnString,FunctionV1.4.3

data:focus([Data], fn) 可传入data供函数fn处理。

fn:在每一个匹配元素的focus事件中绑定的处理函数。

示例

描述:

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();
});

描述:

使人无法使用文本框:

jQuery 代码:
$("input[type=text]").focus(function(){
  this.blur();
});
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