HttpWebRequestを利用してサーバー応答データを受信する方法

HttpWebRequestを利用してサーバー応答データを受信する方法
VB.NET

Dim webreq As System.Net.HttpWebRequest = _
    DirectCast(System.Net.WebRequest.Create("http：//www．microsoft.com"),  _
        System.Net.HttpWebRequest)

Dim webres As System.Net.HttpWebResponse = _
    DirectCast(webreq.GetResponse(), System.Net.HttpWebResponse)

Dim st As System.IO.Stream = webres.GetResponseStream()
Dim sr As New System.IO.StreamReader(st, System.Text.Encoding.UTF8)
Dim htmlSource As String = sr.ReadToEnd()
sr.Close()
st.Close()
webres.Close()

Console.WriteLine(htmlSource)

C#

System.Net.HttpWebRequest webreq =
    (System.Net.HttpWebRequest)
        System.Net.WebRequest.Create("http：//www．microsoft.com");
System.Net.HttpWebResponse webres =
    (System.Net.HttpWebResponse)webreq.GetResponse();
System.IO.Stream st = webres.GetResponseStream();
System.IO.StreamReader sr =
    new System.IO.StreamReader(st, System.Text.Encoding.UTF8);
string htmlSource = sr.ReadToEnd();
sr.Close();
st.Close();
webres.Close();
Console.WriteLine(htmlSource);