public partial class _Default : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){byte[] bytes = File.ReadAllBytes("D:\toClient.xls");//toClient.xls 大小為20MResponse.BinaryWrite(bytes);}}運行后直接報：System.OutOfMemoryException
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TA貢獻1836條經驗 獲得超13個贊
一般是這么寫：
Response.Clear();
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(downloadName, System.Text.Encoding.UTF8));
Response.WriteFile("D:\toClient.xls");
Response.Flush();
Response.End();
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