test.html
Html代碼
<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>jquery</title> <style type="text/css"> </style> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> <script type="text/javascript"> $(document).ready(function (){ $("#show").click(function (){ var iframeObj = $(window.frames["iframe_name"].document); alert(iframeObj.find("#un").val());});}); </script> </head> <body> <input type="button" value="show" /> <iframe src="http://localhost/test/login.html"></iframe> </body> </html>
login.html
Html代碼
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>登錄頁面</title> </head> <body> <form method="POST" action="#"> 用戶名：<input type="text" value="123d" /> 密 碼：<input type="text"/> <input type="submit" value="提交"> </form> </body> </html>
注意：必須同源
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疑難解答
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