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protected void Button1_Click(object sender, EventArgs e)
{
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Response.ContentType = "application/x-zip-compressed";
Response.AddHeader("Content-Disposition", "attachment;filename=z.zip");
string filename = Server.MapPath("DownLoad/z.zip");
Response.TransmitFile(filename);
}
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protected void Button2_Click(object sender, EventArgs e)
{
/*
using System.IO;
*/
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