C#--网络流Stream、字节数组保存到字符串中

HttpWebRequest httpwebr = (HttpWebRequest)HttpWebRequest.Create(rstr);
httpwebr.Method = "GET";
Stream  s =httpwebr.GetResponse().GetResponseStream();

byte[] buffer = new byte[1024];

int actual = 0;

//先保存到内存流中MemoryStream
MemoryStream ms = new MemoryStream();
while ((actual = s.Read(buffer, 0, 1024)) > 0)
{
ms.Write(buffer, 0, actual);
}

ms.Position = 0;

//再从内存流中读取到byte数组中

buffer = ms.ToArray();

//再从byte数组中保存到字符串中

string result = System.Text.Encoding.UTF8.GetString(buffer, 0, buffer.Length);

Stream stream = ((HttpWebResponse)httpwebr.GetResponse()).GetResponseStream();
StreamReader sr = new StreamReader(stream);
string str = sr.ReadToEnd();

Console.WriteLine(str);