asp里面，出现下载对话提示框的代码是什么，

Question

<a href="a.zip">下载</a>

Answer 1

http://www.csdn.net/develop/read_article.asp?id=14994

Answer 2

string destFileName=@"要下载的文件名";
FileInfo fi = new FileInfo(destFileName);
Response.Clear();
Response.ClearHeaders();
Response.Buffer = false;
Response.AppendHeader("Content-Disposition","attachment;filename=" + Server.UrlEncode(Path.GetFileName(destFileName)));
Response.AppendHeader("Content-Length",fi.Length.ToString());
Response.WriteFile(destFileName);
Response.Flush();
Response.End();