fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> </head> <body> <form action="demo_keygen.php" method="get"> 用户名: <input type="text" name="usr_name"> 加密: <keygen id="myKeygen" name="security" autofocus> <input type="submit"> </form> <p>点击 "点我" 按钮查看 keygen 字段在页面载入后是否自动获取焦点。</p> <p id="demo"></p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var x = document.getElementById("myKeygen").autofocus; document.getElementById("demo").innerHTML=x; } </script> </body> </html>
运行结果