xxxxxxxxxx<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>基础教程(div.cn)</title> </head><body><form action="demo-form.php" method="get"> 用户名: <input type="text" name="usr_name"> 加密: <keygen name="name" challenge="challenge string" keytype="type" keyparams="pqg-params"> <input type="submit"></form><p><strong>注意:</strong> Internet Explorer 不支持 keygen 标签。</p></body></html>