string strURL = "http://localhost/WinformSubmit.php?tel=11111&name=張三";
System.Net.HttpWebRequest request;
// 創(chuàng)建一個HTTP請求
request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
//request.Method="get";
System.Net.HttpWebResponse response;
response = (System.Net.HttpWebResponse)request.GetResponse();
System.IO.StreamReader myreader = new System.IO.StreamReader(response.GetResponseStream(), Encoding.UTF8);
string responseText = myreader.ReadToEnd();
myreader.Close();
MessageBox.Show(responseText);

string strURL = "http://localhost/WinformSubmit.php";
System.Net.HttpWebRequest request;
request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);
//Post請求方式
request.Method = "POST";
// 內(nèi)容類型
request.ContentType = "application/x-www-form-urlencoded";
// 參數(shù)經(jīng)過URL編碼
string paraUrlCoded = System.Web.HttpUtility.UrlEncode("keyword");
paraUrlCoded += "=" + System.Web.HttpUtility.UrlEncode("多月");
byte[] payload;
//將URL編碼后的字符串轉(zhuǎn)化為字節(jié)
payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded);
//設(shè)置請求的 ContentLength 
request.ContentLength = payload.Length;
//獲得請 求流
System.IO.Stream writer = request.GetRequestStream();
//將請求參數(shù)寫入流
writer.Write(payload, 0, payload.Length);
// 關(guān)閉請求流
writer.Close();
System.Net.HttpWebResponse response;
// 獲得響應(yīng)流
response = (System.Net.HttpWebResponse)request.GetResponse();
System.IO.StreamReader myreader = new System.IO.StreamReader(response.GetResponseStream(), Encoding.UTF8);
string responseText = myreader.ReadToEnd();
myreader.Close();
MessageBox.Show(responseText);

 //請求
string uri = http://www.baidu.com;
HttpWebRequest request = HttpWebRequest.Create(uri) as HttpWebRequest;
request.Method = "GET";                            //請求方法
request.ProtocolVersion = new Version(1, 1);   //Http/1.1版本
//Add Other ...

HttpWebResponse response=request.GetResponse() as HttpWebResponse;
   //Header
   foreach (var item in response.Headers)   
  {
     this.txt_Header.Text += item.ToString()+": " +   
     response.GetResponseHeader  (item.ToString())
     + System.Environment.NewLine;
  }
 
    //如果主體信息不為空，則接收主體信息內(nèi)容
   if (response.ContentLength <= 0)
      return;
   //接收響應(yīng)主體信息
   using(Stream stream =response.GetResponseStream())
   {
     int totalLength=(int)response.ContentLength;
     int numBytesRead=0;
     byte[] bytes=new byte[totalLength+1024];
    //通過一個循環(huán)讀取流中的數(shù)據(jù)，讀取完畢，跳出循環(huán)
     while( numBytesRead < totalLength  )
     {
      int num=stream.Read(bytes,numBytesRead,1024);  //每次希望讀取1024字節(jié)
      if( num==0 )   //說明流中數(shù)據(jù)讀取完畢
        break;
      numBytesRead+=num;
     }
 
　 }
   //將接收到的主體數(shù)據(jù)顯示到界面
   string content=Encoding.UTF8.GetString(bytes);
   this.txt_Content.Text=content;