编辑下面的代码:【加编码】
<html> <body> <form action="demo-form.php" novalidate> E-mail: <input type="email" name="user_email"> <input type="submit"> </form> <p><strong>Note:</strong> The novalidate attribute of the form tag is not supported in Internet Explorer 9 and earlier versions, or in Safari.</p> </body> </html>
结果: 【此窗口】 帮助?
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