.net 获得txt内容

apsx

<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="Button1" runat="server" Text="文件上传" onclick="Button1_Click" />

cs

protected void Button1_Click(object sender, EventArgs e)
        {
            String filenmae = MapPath("~/") + "file.txt";
            FileUpload1.SaveAs(filenmae);
            StreamReader sr = new StreamReader(filenmae, System.Text.Encoding.Default);
            String input = sr.ReadToEnd();
            sr.Close();

            input = input.Replace("/r/n", "<br>").Replace("/n", "<br>");
            Response.Write(input);
            Response.End();
        }