<html>
<title>
<script language="javascript">
function a(){
document.frames[0].execScript('b()','javascript');
}
</script>
</title>
<body>
<iframe width=420 height=330 frameborder=0 scrolling=auto id=qichao style="width:100%" name=qichao src="1.html"></iframe>
<input type="button" name="button" value="点击" onclick="a()">
</body>
</html>
1.html
<html>
<body>
<script language="javascript">
function b(){
alert("被父窗口抓到了！");
}
</script>
</body>
</html>
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