<html>
<body>
生日: <input type="datetime-local" id="myLocalDate" name="bdaytime">
<p>点击按钮显示或者修改本地时间的 name 属性值。</p>
<button onclick="display()">显示名称</button>
<button onclick="change()">修改名称</button>
<script>
function display() {
var x = document.getElementById("myLocalDate").name;
alert("本地时间字段名称为: " + x);
}
function change() {
var x = document.getElementById("myLocalDate").name = "newDatetimeName";
alert ("名称修改为: " + x);
}
</script>
</body>
</html>