節點屬性:
先上代碼:
<%@ page language="java" import="java.util.*" pageEncoding="GB2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>JavaScript</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript">
window.onload = function(){
var bjNode = document.getElementById("bj");
alert(bjNode.nodeType);//元素節點:1(表示元素節點)
alert(bjNode.nodeName);//元素節點名稱
alert(bjNode.nodeValue);//元素節點沒有節點值,是以值為null
var nameAttru = document.getElementById("name")
.getAttributeNode("name");
alert(nameAttru.nodeType);//屬性節點:2(表示屬性節點)
alert(nameAttru.nodeName);//屬性節點名:name
alert(nameAttru.nodeValue);//屬性節點的nodeValue值就是屬性值(userName)
var textAttru = bjNode.firtChild;
alert(textAttru.nodeType);//text類型:3
alert(textAttru.nodeName);//text名字:#text
alert(textAttru.nodeValue);//text的nodeValue就是文本值
}
</script>
</head>
<body>
<p>你喜歡哪個城市</p>
<ul id="City">
<li id="bj" name="beijing">北京</li>
<li id="Sh">上海</li>
<li>廣州</li>
<li>深圳</li>
</ul>
<br/>
<p>你喜歡哪款單機遊戲</p>
<ul id="game">
<li>反恐精英</li>
<li>魔獸</li>
<li>紅警</li>
<li>實況</li>
</ul>
<br/>
<br/>
Name:<input id="name" type="text" name="username" />
</body>
</html>
總結:
nodeType:
1.表示元素節點類型
2.表示屬性節點類型
3.表示文本節點類型
nodeName:
元素節點:元素名
屬性節點:屬性名
文本節點:#text
nodeValue: