使用 .NET Framework 编程-访问 Internet-使用 Internet 请求和响应类

 1 using System;
 2 using System.Net;
 3 namespace WebRequest1
 4 {
 5     class Class1
 6     {
 7         [STAThread]
 8         static void Main(string[] args)
 9         {
10             Uri site=new Uri("http://www.baidu.com");
11             WebRequest wReq=WebRequest.Create(site);
12             ((HttpWebRequest)wReq).UserAgent="My Test";
13             WebResponse wResp=wReq.GetResponse();
14             DateTime updated=((HttpWebResponse)wResp).LastModified;
15             System.IO.Stream respStream=wResp.GetResponseStream();
16             System.IO.StreamReader reader=new System.IO.StreamReader
17                 (respStream,System.Text.Encoding.GetEncoding("GB2312"));
18             string respHTML=reader.ReadToEnd();
19             Console.WriteLine(respHTML);
20             wResp.Close();
21         }
22     }
23 }
24