怎么将兄弟iframe中内容alert出来?!
某一父页面father.html,如下
<html>
<head>
<title>father.html</title>
<head>
<body>
<iframe name = "A" id = "A" src = "" width = "0" height = "0" ></iframe>
<iframe name = "B" id = "B" src = "B.html" width = "0" height = "0" ></iframe>
</body>
<html>
在页面B中怎么将兄弟iframe A的html内容alert出来啊?!
<html>
<head>
<title>B.html<>
</head>
<body>
</body>
<script>
// 在页面B中怎么将兄弟iframe A的html内容alert出来啊?!
</script>
<html>