Js为表单动态添加节点内容的方法

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本文实例讲述了Js为表单动态添加节点内容的方法。分享给大家供大家参考。具体如下：

1. 代码

复制代码代码如下:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>增加节点</title>
<script type="text/javascript">
   function newPicture() {
       var picElement = document.createElement("img");
       picElement.src = "images/success.jpg";
       picElement.width = 100;
       picElement.height = 100;
       document.body.appendChild(picElement);
   }

   function newNode() {
       var olElement = document.getElementById('answers');
       var liElement = document.createElement('li');

       var inputElement = document.createElement('input');
       inputElement.type = "text";
       inputElement.name = "answer";

       liElement.appendChild(inputElement);
       olElement.appendChild(liElement);
   }
</script>
</head>

<body>
<div>
    <input type="button" name="button" value="增加一张图片" onclick="javascript:newPicture();"/>
    <input type="button" name="button" value="增加一个选项" onclick="javascript:newNode();"/><br />
    <ol id="answers">
        <li><input type="text" name="answer" /></li>
    </ol>
</div>
</body>
</html>