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web
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api
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window
/
frames
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index.md
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frames
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---
title
:
Window.frames
slug
:
Web/API/Window/frames
---
{{ApiRef("Window")}}
##
概要
返回当前窗口,一个类数组对象,列出了当前窗口的所有直接子窗口。
##
语法
```
plain
frameList = window.frames;
```
-
frameList 是一个 frame 对象的集合,它类似一个数组,有 length 属性且可以使用索引(
\[
i
]
)来访问。
-
`
frameList === window
`
计算结果为 true。
-
在 window
\.
frames 类数组中的每一项都代表了窗口对应给定对象的
\<
frame>或
\<
iframe>的内容,而不是 (i)frame DOM 元素(即 window
\.
frames
\[
0
]
与 document.getElementsByTagName( "iframe" )
\[
0
]
.contentWindow 是相同的)。
-
有关返回值的更多详细信息,请参考
[
thread on mozilla.dev.platform
]
(
https://groups.google.com/group/mozilla.dev.platform/browse_thread/thread/5628c6f346859d4f/169aa7004565066?hl=en&ie=UTF-8&oe=utf-8&q=window.frames&pli=1
)
。
##
实例
```
js
var
frames
=
window
.
frames
;
//
或 // var frames = window.parent.frames;
for
(
var
i
=
0
; i
<
frames
.
length
; i
++
) {
//
在这对 frames 的一个 frame 做点什么
frames
[i].
document
.
body
.
style
.
background
=
"
red
"
;
}
```
##
规范
{{Specifications}}
##
浏览器兼容性
{{Compat}}
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