.Net文件下载方法
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#region 文件下载方法:

private void FileDownload(string FullFileName){

FileInfo DownloadFile = new FileInfo(FullFileName);

Response.Clear();

Response.ClearHeaders();

Response.Buffer = false;

Response.ContentType = "application/octet-stream";

Response.AppendHeader("Content-Disposition","attachment;filename=" + HttpUtility.UrlEncode(DownloadFile.FullName, System.Text.Encoding.UTF8));

Response.AppendHeader("Content-Length"",DownloadFile.Length.ToString());

Response.WriteFile(DownloadFile.FullName);

Response.Flush();

Response.End();

}

#endregion