📄 16.15.htm

📁 这是我卖的书上的源码这书是电子邮电出版的是有关网络编程有详细的例子

💻 HTM

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<!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>
<title>Simple DOM Editor 0.2</title>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<script type="text/javascript">
<!--
var dangerousElements = {'html':true,'head':true,'body':true,'script':true,'style':true,'frameset':true,'frame':true};
var emptyElements ={'hr':true,'meta':true,'br':true,'area':true,'base':true,'basefont':true,'link':true,'frame':true};
function addElement(theElement,theText)
{
 if (theElement in dangerousElements)
   {
       alert("Error: Element not allowed");
       return;
      }
 var newNode = document.createElement(theElement);
 if ((theText.length> 0) && !(theElement in emptyElements))
  {
   var newText = document.createTextNode(theText);
   newNode.appendChild(newText);
  }
 else
   alert("Warning: Do not add text to an empty element");
 document.getElementById('insertHere').appendChild(newNode);
}
//-->
</script>
</head>
<body>
<div id="insertHere" style="width: 80%; border-style: dashed; border-width: 1px;">
      &nbsp;
</div>
<form action="#" method="get" name="theForm" id="theForm">
 <input type="text" value="i" name="theTag" id="theTag">
 <input type="text" name="theText" id="theText" value="Testing 1..2..3..">
 <input type="button" value="Create" onclick="addElement(document.theForm.theTag.value,document.theForm.theText.value);" >
</form>
</body>
</html>

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