protected void btnSend_Click(object sender, EventArgs e)

    {

        try

        {

            //上傳文件的思路：

            //獲取上傳文件的名稱，此時為一個全路徑的地址

            string upFileName = fulFileName.FileName;

            //獲取上傳文件的擴展名

            string lastName = upFileName.Substring(upFileName.LastIndexOf("."));

            //得到新的文件名稱

            string newFileName = txtFileName.Text + lastName;

            //設置要保存到的文件路徑

            string FilePath =Server.MapPath("./")+"File"+"http://"+newFileName;

            //將文件保存到指定文件路徑下

            fulFileName.PostedFile.SaveAs(FilePath);

            lblResult.Text = "上傳成功";

        }

        catch (Exception ex)

        {

            Response.Write(ex.Message.ToString());

            lblResult.Text = "上傳失敗";

        }

     

}