static void Copy(Stream inStream, Stream outStream){    Copy(inStream, outStream, 1024 * 1024);}static void Copy(Stream inStream,Stream outStream,int bufferSize){    byte[] bytes = new byte[bufferSize];    int len;    while ((len = inStream.Read(bytes, 0, bytes.Length)) > 0)    {        outStream.Write(bytes, 0, len);    }}using (Stream inStream = new FileStream(@"d:\temp\DevCpp.zip",FileMode.Open))using (Stream outStream = new FileStream(@"d:\temp\1.zip", FileMode.Create)){    Copy(inStream, outStream);}

 

文件下载器：

WebRequest req = WebRequest.Create("http://www.baidu.com/img/bd_logo1.png");using (WebResponse res = req.GetResponse())using (Stream inStream = res.GetResponseStream())using(Stream outStream = new FileStream(@"d:\temp\2.png",FileMode.Create)){    //inStream.CopyTo(    Console.WriteLine(inStream.GetType());//Object o = new Person();    //Copy(inStream, outStream);    inStream.CopyTo(outStream);}