C#下载网页数据

using ;
 using System.Text;

 
 

GET方式：
 

try
 { 
 
  
      WebClient myclient=new WebClient();
  
      byte[] databuffer =myclient.DownloadData (URL);  
  
      string maintext= Encoding.Default.GetString(databuffer);
  
      myclient.Dispose();
 }
     catch(.WebException err)
 { 
 
      MessageBox.Show(err.Message);
 }

 
 
 
POST方式：
 

try
 { 
 
      WebClient myclient=new WebClient();
  
      string url = "http://www.cninfo.com.cn/jjzx/zcjz.jsp";
   
      NameValueCollection nvc = new NameValueCollection();
          
      nvc.Add("fundCode",code值);
      nvc.Add("smt","查询");
   
      byte[] databuffer = myclient.UploadValues(url,"POST",nvc);
  
      string maintext= Encoding.Default.GetString(databuffer);
  
      myclient.Dispose();
  
 }
     catch(.WebException err)
 { 
 
  
      MessageBox.Show(err.Message);
 }