C# 高效获取网页源码 再提取网页正文内容,该怎么解决

C# 高效获取网页源码 再提取网页正文内容
各位大侠，谁能帮忙给个高效获取网页源码 再提取网页正文内容的代码，谢谢 急用

[解决办法]

C# code

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(m_uri);                response = request.GetResponse();                if (!request.HaveResponse)                {                    response.Close();                    return null;                }                stream = response.GetResponseStream();                if (!response.ContentType.ToLower().StartsWith("text/"))                {                    return null;                }                string strEncoding = _DataCode.ToLower();                if (strEncoding == "utf-8")                    encoding = Encoding.UTF8;                else if (strEncoding == "utf-7")                    encoding = Encoding.UTF7;                else if (strEncoding == "unicode")                    encoding = Encoding.Unicode;                else                    encoding = Encoding.Default;                reader = new StreamReader(stream, encoding);                return reader.ReadToEnd();
[解决办法]
C# code
System.Net.WebClient webClient = new System.Net.WebClient();byte[] bText = webClient.DownloadData("http://www.sina.com.cn/");//网页内容string strContent = System.Text.UTF8Encoding.UTF8.GetString(bText);webClient.Dispose();webClient = null;
[解决办法]
private string GetWebContent(string Url) 
{ 
string strResult=""; 
try 
{ 
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url); 
　　　　//声明一个HttpWebRequest请求 
request.Timeout = 30000; 
//设置连接超时时间 
request.Headers.Set("Pragma", "no-cache"); 
HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 
Stream streamReceive = response.GetResponseStream(); 
Encoding encoding = Encoding.GetEncoding("GB2312"); 
StreamReader streamReader = new StreamReader(streamReceive, encoding); 
strResult = streamReader.ReadToEnd(); 
} 
catch 
{ 
MessageBox.Show("出错"); 
} 
return strResult; 
} 

给你找来了。自己传个URL就行了。返回的是整个页面的源代码.至于详细的信息靠你自己来截取  

可以用正则可以用INDEXOF SUBSTRING。 最好写成写 TIMER定时windows 服务,用多线程去取去存储.程序自己跑不用操心