菜鸟教程在线编辑器

AI 编程工具
 
                <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>

<textarea id="myTextarea" name="comment">
Some text in a text area....</textarea>

<p>点击按钮修改 textarea 的名称。</p>

<button onclick="display()">显示名称</button>
<button onclick="change()">修改名称</button>

<script>
function display() {
  var x = document.getElementById("myTextarea").name;
  alert("名字为: " + x);
}

function change() {
  var x = document.getElementById("myTextarea").name = "newTxtName";
  alert ("名字已经修改: " + x);
}
</script>

</body>
</html>
              