Question

这是我的HTML：

 <div id="tab1" class="tab_content">

 <div id="dvreadmore"><?xml version="1.0" encoding="utf-8" standalone="no"?>


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"  "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">


<html xmlns="http://www.w3.org/1999/xhtml">

<head>


<title>&nbsp;</title>


<link href="style.css" rel="stylesheet" type="text/css" />


</head>


<body>

<div>

<p class="dgthreedigest">CL : Where petitioner raised same bills against respondent as well as its sister concern, winding up petition against respondent for non-payment of dues was to be dismissed - [2012] 19 taxmann.com 206 (Delhi)</p>

</div>

</body>

</html>

请参阅此网址（http://www.taxmann.com/taxmannflashes/whatsnew.aspx?sid=9578&stype=1）

WebResponse res = req.GetResponse();

StreamReader sr = new StreamReader(res.GetResponseStream());


string htmlResp = sr.ReadToEnd();


String htmlBody = "";

if (htmlResp.ToLower().Contains("<div id=\"dvreadmore\">"))
{
     int startIndex = htmlResp.ToLower().IndexOf("<div id=\"dvreadmore\">"); 

     //here i m getting    first  index value
     // but when i pick last indext it awlays give me -1 


     int lastIndex = htmlResp.ToLower().IndexOf("</html>\n</div>");

我在Java编译器中做了同样的事情，选择最后一个索引并给出一定的值，但在C＃Asp .Net中，我无法选择数据，它总是给出-1值。

如何选择最后一个索引？

Answer 1

您必须将 lastIndex 视为

int lastIndex = htmlResp.ToLower().IndexOf("</html>\r\n</div>");

或

int lastIndex = htmlResp.ToLower().IndexOf("</html>" + Environment.NewLine + "</div");

它返回23195

如何挑选标签

1 个答案: