JS正则表达式提取文章前两段该怎么写？？

如题，，，
<p>p1</p>
<p>p2</p>
<p>p3</p>
<p>p4</p>
JS得到这些内容，用正则表达式来解析前两段，是普通的字符串，不是DOM。。 document.getElementByTagName不能用

解决方案 »

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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
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>My JSP 'ok.jsp' starting page</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">

<script type="text/javascript">
function cc()
{
var s="<p>p1</p><p>p2</p><p>p3</p><p>p4</p>";
var array=s.match(/(?!<p>)(\w*?)(?=<\/p>)/g);
for(var i=0;i<array.length;i++){
alert(array[i]);
}
}</script>  </head>

  <body>
<div id="todayTime"></div>
<input type="button" onclick="cc();" value="测试"/>
  </body>
</html>
var str="<p>p1111</p><p>p112111</p><p>p134111</p><p>p111111</p>";
var reg=/<p>(.*?)<\/p>/g;
var res=reg.exec(str);
alert(res[1]);
res=reg.exec(str);
alert(res[1]);
把*改成+就行了，，不过这段内容<div>英语中最常见的单词莫过于of the 和on the了</div><p><span style="color: red;">sad</span></p><p>sdfg</p><p> </p>
只能匹配到一段呢
提示下，如果涉及到嵌套。用javascript的正则表达式没有好的解决方案
我建议还是把这个字符串load 成 xmlDocument 然后再解析吧
我想要得到的是
<p>p1</p>
<p>p2</p>
包括p标签，不会涉及嵌套，上面试了都多多少少有点问题，谢谢啦。。
var str="<p>p1111</p><p>p112111</p><p>p134111</p><p>p111111</p>";
var reg=/<p>.*?<\/p>/g;
var res=str.match(reg);
alert(res[0]);
alert(res[1]);
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
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>My JSP 'ok.jsp' starting page</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">

<script type="text/javascript">
function cc()
{
var s="<p><span style='color: red;'>sad</span></p><p>p2</p><p>p3</p><p>p4</p>";
var array=s.match(/<p>[\w|\W]+?<\/p>/g);
for(var i=0;i<array.length;i++){
alert(array[i]);
}
//alert(array.length);
}
</script>  </head>

  <body>
<div id="todayTime"></div>
<input type="button" onclick="cc();" value="测试"/>
  </body>
</html>