安科网
源代码：
点击运行
<!DOCTYPE html> <html> <body> <form action="demo_keygen.php" method="get"> Username: <input type="text" name="usr_name"> Encryption: <keygen id="myKeygen" name="security"> <input type="submit"> </form><br> <button onclick="disableKey()">禁用 Keygen 字段</button> <button onclick="undisableKey()">启用 Keygen 字段</button> <script> function disableKey() { document.getElementById("myKeygen").disabled=true; } function undisableKey() { document.getElementById("myKeygen").disabled=false; } </script> </body> </html>
运行结果
Copyright © 2013 - 2019 Ancii.com All Rights Reserved
京ICP备18063983号-5
京公网安备11010802014868号