<form id="myForm" action="/dy/html/getpost">

<input type="radio" name="sex" id="male" value="male">

</form>

<p>点击按钮创建 LABEL 元素</p>

<button onclick="myFunction()">尝试一下</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>

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