C#请求网址Get和Post两种方式基本代码

引入的命名空间有：
using System.IO;
using System.Net;
using System .Text;

Post方法：
ASCIIEncoding encoding=new ASCIIEncoding();
string postData="username=test";
postData += ("&password=111");
byte[] data = encoding.GetBytes(postData);

HttpWebRequest myRequest =
(HttpWebRequest)WebRequest.Create("http://www.qq.com");

myRequest.Method = "POST";
myRequest.ContentType="application/x-www-form-urlencoded";
myRequest.ContentLength = data.Length;
Stream newStream=myRequest.GetRequestStream();

newStream.Write(data,0,data.Length);
newStream.Close();

HttpWebResponse myResponse=(HttpWebResponse)myRequest.GetResponse();
StreamReader reader = new StreamReader(myResponse.GetResponseStream(),Encoding.Default);
string result = reader.ReadToEnd();
result = result.Replace("\r","").Replace("\n","").Replace("\t","");
int status = (int)myResponse.StatusCode;
reader.Close();

 

Get方法：
HttpWebRequest httpRequest = (HttpWebRequest)WebRequest.Create("http://www.baidu.com");
httpRequest.Timeout = 2000;
httpRequest.Method = "GET";
HttpWebResponse httpResponse = (HttpWebResponse)httpRequest.GetResponse();
StreamReader sr = new StreamReader(httpResponse.GetResponseStream(), System.Text.Encoding.GetEncoding("gb2312"));
string result = sr.ReadToEnd();
result = result.Replace("\r","").Replace("\n","").Replace("\t","");
int status = (int)httpResponse.StatusCode;
sr.Close();