tryjsref_email_name2 在线代码实例

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<!DOCTYPE html>
<html>
<body>
E-mail: <input type="email" id="myEmail" name="usremail">
<p>点击按钮显示或者修改 email  字段 name 属性的值。</p>
<button onclick="display()">显示名称</button>
<button onclick="change()">修改名称</button>
<script>
function display() {
    var x = document.getElementById("myEmail").name;
    alert("email 名称为: " + x);
}
function change() {
    var x = document.getElementById("myEmail").name = "newEmailName";
    alert ("名称修改为: " + x);
}
</script>
</body>
</html>
 
 
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运行结果
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