<!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" keytype="rsa">
<input type="submit">
</form>
<p>点击 "点我" 按钮返回 keygen 字段的keytype属性值。</p>
<p id="demo"></p>
<button onclick="myFunction()">点我</button>
<script>
function myFunction(){
var x = document.getElementById("myKeygen").keytype;
document.getElementById("demo").innerHTML=x;
}
</script>
</body>
</html>