获取子节点的方法有:
方法 | 说明 |
children() | 选取子节点,可以带过滤参数。但只能选择子节点,不能选择孙子节点。 |
find() | 选取子节点,可以带过滤参数。可以选择子节点及孙子节点。 |
children()示例:
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<!DOCTYPE html>
<
html
>
<
head
>
<
meta
charset
=
"UTF-8"
>
<
title
>子节点</
title
>
<
style
>
.box{
border: 1px solid blueviolet;
padding: 1px;
margin-bottom: 12px;
}
</
style
>
</
head
>
<
body
>
<
div
>
<
ul
id
=
"ul"
>
<
li
id
=
"a"
>鼠标</
li
>
<
li
id
=
"b"
>键盘</
li
>
<
li
id
=
"c"
>屏幕</
li
>
<
li
id
=
"d"
><
a
>电源</
a
></
li
>
</
ul
>
</
div
>
<
script
>
$('div').children("*").attr("class", "box");
</
script
>
</
body
>
</
html
>
|
find()示例:
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|
<!DOCTYPE html>
<
html
>
<
head
>
<
meta
charset
=
"UTF-8"
>
<
title
>子节点</
title
>
<
style
>
.box{
border: 1px solid blueviolet;
padding: 1px;
margin-bottom: 12px;
}
</
style
>
</
head
>
<
body
>
<
div
>
<
ul
id
=
"ul"
>
<
li
id
=
"a"
>鼠标</
li
>
<
li
id
=
"b"
>键盘</
li
>
<
li
id
=
"c"
>屏幕</
li
>
<
li
id
=
"d"
><
a
>电源</
a
></
li
>
</
ul
>
</
div
>
<
script
>
$('div').find("ul").attr("class", "box");
</
script
>
</
body
>
</
html
>
|