void SendFile(String fileName, String root)
{
var ff = new FileFormat(fileName, root);
WriteLog("{2} 发送文件{0}，{1:n0}kb", ff.Name, ff.Length / 1024, Client.Local);
Client.Send(ff.GetHeader());
//Client.Send(ff.Stream);
using (var fs = fileName.AsFile().OpenRead())
{
Client.Send(fs);
}
}
