☀【window.self / window.parent / window.top】

Js中的window.parent ,window.top,window.self 详解 √
http://blog.csdn.net/zdwzzu2006/article/details/6047632

http://xxx/test1.html(同域)

<!DOCTYPE html>

<html lang="zh-CN">

<head>

    <meta charset="utf-8">

    <title></title>

</head>

<body>

    <iframe src="test2.html"></iframe>

    <script>

        console.log(top === self)

        console.log(self === window)

        console.log(self)

        console.log(parent)

        console.log(top)

    </script>

</body>

</html>

test2.html

<!DOCTYPE html>

<html lang="zh-CN">

<head>

    <meta charset="utf-8">

    <title></title>

</head>

<body>

    <script>

        console.log(top === self)

        console.log(self === window)

        console.log(self)

        console.log(parent)

        console.log(top)

    </script>

</body>

</html>

 

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