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文字

返回值:jQuerychildren([expr])

概述

取得一个包含匹配的元素集合中每一个元素的所有子元素的元素集合。

可以通过可选的表达式来过滤所匹配的子元素。注意:parents()将查找所有祖辈元素,而children()只考虑子元素而不考虑所有后代元素。

参数

expr StringV1.0

用以过滤子元素的表达式

示例

描述:

查找DIV中的每个子元素。

HTML 代码:
<p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
jQuery 代码:
$("div").children()
结果:
[ <span>Hello Again</span> ]

描述:

在每个div中查找 .selected 的类。

HTML 代码:
<div><span>Hello</span><p class="selected">Hello Again</p><p>And Again</p></div>
jQuery 代码:
$("div").children(".selected")
结果:
[ <p class="selected">Hello Again</p> ]
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