C# asp.net页面接收的数据保存到Txt文件中, C#将数据保存到记录本中 conquer

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;

namespace URLSendValTest
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string strDisp = Request.QueryString["SendVal"].ToString();
            //string strDisp = "中华人民共和国";
            TextBox1.Text=strDisp;
            // 将数据保存到Txt文件中
            CreateTxt(strDisp);
        }
        public void CreateTxt(string strDisp)
        {
            /** //********页面报权限不够的错*****************
             *在D盘建立  aa.txt文件
             *
             * * 在写入数据时需给被写入的文件加入 写入权限和 asp.net帐户,NETWORK SERVICE帐户
             * 属 性-->>安全-->>添加-->>查找位置改为本机-->>高级-->>立即查找 -->>[选择所要的]
             * */

            string filename = "aa";
            FileStream fs = new FileStream(@"d:\" + filename + ".txt",FileMode.Open, FileAccess.Write);
            StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.GetEncoding("GB2312"));//通过指定字符编码方式可以实现对汉字的支持，否则在用记 事本打开查看会出现乱码
            sw.Flush();
            sw.BaseStream.Seek(0, SeekOrigin.End);   //从哪里开始写入.
            sw.WriteLine(strDisp);
            sw.Flush();
            sw.Close();
            Page.ClientScript.RegisterStartupScript(this.GetType(), @"alert('成功!');", "scriptName");

            //using (StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.GetEncoding("GB2312")))
            //{
            //    //   Add   some   text   to   the   file.  
            //    sw.Write("This   is   the   ");
            //    sw.WriteLine("header   for   the   file.");
            //    sw.WriteLine("-------------------");
            //    //   Arbitrary   objects   can   also   be   written   to   the   file.  
            //    sw.Write("The   date   is:   ");
            //    sw.WriteLine(DateTime.Now);
            //}
            //Page.ClientScript.RegisterStartupScript(this.GetType(), @"alert('成功!');", "scriptName");
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            
        }
    }
}