怎么取得指定url的网页源码

[yesbar]

Dim s As TextReader = New StreamReader(File.Open("c:\index.htm",
FileMode.OpenOrCreate), System.Text.Encoding.Default)
这个可以取得本地计算机的网页源码


请问，我要想取得给定的一个网络上的url呢？如何做？

[windinwing]

晕，没分，


public static string getPage(String url)
{
WebResponse result = null;
string txthtml="";
try
{
WebRequest req = WebRequest.Create(url);
result = req.GetResponse();
Stream ReceiveStream = result.GetResponseStream();
Encoding encode = System.Text.Encoding.GetEncoding("gb2312");
StreamReader sr = new StreamReader(ReceiveStream,encode);
//this.Message.Text+="\r\n已接收到响应流";
if (true)
{
Char[] read = new Char[256];
int count = sr.Read( read, 0, 256 );

// this.Message.Text+="HTML...\r\n";
while (count > 0)
{
String str = new String(read, 0, count);
txthtml+=str;
count = sr.Read(read, 0, 256);
}
// this.Message.Text="":
}
}
catch(Exception)
{
txthtml="err";
//this.is_id.Value=url;
}
finally
{
if (result != null)
{
result.Close();
}

}
//this.is_id.Value=url;
return txthtml;
}