index.html
<div id="div1"></div><iframe src="ajax2.html" name="frame2" frameborder="0"></iframe><script type="text/javascript"> ???$("#div1").data("datagrid", {name: "叶龙龙"});</script>ajax2.html
console.log($("#div1",parent["frame2"].document).data());https://stackoverflow.com/questions/4101457/access-jquery-data-from-iframe-element
https://stackoverflow.com/questions/4941435/how-to-share-jquery-data-data-through-iframes
如何通过 iframe 共享 jQuery $.data？
原文地址：http://www.cnblogs.com/yeminglong/p/7459521.html