​x
 
<!DOCTYPE html>
<html>
<body>
​
<h3>演示如何访问 LABEL 元素</h3>
​
<form id="myForm" action="form_action.asp">
  <input type="radio" name="sex" id="male" value="male">
</form>
​
<p>点击按钮来创建 LABEL 元素。</p>
​
<button onclick="myFunction()">试一下</button>
​
<script>
function myFunction()
{
var x = document.createElement("LABEL");
var t = document.createTextNode("Male");
x.setAttribute("for", "male");
x.appendChild(t);
document.getElementById("myForm").insertBefore(x,document.getElementById("male"));
}
</script>
​
</body>
</html>
​