解决Response.AddHeader中文乱码问题

 string filename = HttpUtility.UrlEncode(Encoding.UTF8.GetBytes("培训班自然情况表"));
 Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.doc", filename + System.DateTime.Now.ToString("yyyymmddhhmmssfff ")));
 Response.Charset = "UTF-8";
 Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
 Response.ContentType = "application/ms-word";
 Response.BinaryWrite(ms.ToArray());