C#对文件的操作 中文乱码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Collections;
using System.IO;
using System.Text;

public partial class _Default : System.Web.UI.Page
{ 

    protected void page_load(object serder, EventArgs e)
    {
        //C#写入/读出文本文件
        //解决中文乱码：1.把文本文件另存为utf-8编码 2.StreamReader sr = new StreamReader(fileName, Encoding.GetEncoding("gb2312"));
        string fileName = @"c:/1.txt";
        //StreamReader sr = new StreamReader(fileName);
        StreamReader sr = new StreamReader(fileName, Encoding.GetEncoding("gb2312"));
        string str = sr.ReadLine();
        labContent1.Text = str.ToString();
        sr.Close();
        //StreamWriter rw = File.CreateText(Server.MapPath(".") + "/myText.txt");
        //rw.WriteLine("写入");
        //rw.WriteLine("abc");
        //rw.WriteLine(".NET笔记");
        //rw.Flush();
        //rw.Close();

        //打开文本文件
        //StreamReader sr = File.OpenText(fileName);
        ////StreamReader sr = File.OpenText(Server.MapPath(".") + "/myText.txt");
        //StringBuilder output = new StringBuilder();
        //string rl;
        //while ((rl = sr.ReadLine()) != null)
        //{
        //    output.Append(rl + "");
        //}
        //labContent1.Text = output.ToString();
        //sr.Close();

        //C#追加文件
        //StreamWriter sw=File.AppendText(Server.MapPath(".")+"/myText.txt");
        //sw.WriteLine("追逐理想");
        //sw.WriteLine("anyuan");
        //sw.WriteLine(".NET笔记");
        //sw.Flush();
        //sw.Close();

        //C#拷贝文件
        //string OrignFile,NewFile; 
        //OrignFile=Server.MapPath(".")+"/myText.txt";
        //NewFile=Server.MapPath(".")+"/myTextCopy.txt";
        //File.Copy(OrignFile,NewFile,true);

        //C#删除文件
        //string delFile = Server.MapPath(".") + "/myTextCopy.txt";
        //File.Delete(delFile);

        //C#移动文件 ?可以理解为文件重命名
        //string OrignFile,NewFile;
        //OrignFile=Server.MapPath(".")+"/myText.txt";
        //NewFile=Server.MapPath(".")+"/myTextCopy.txt";
        //File.Move(OrignFile,NewFile);

        //C#创建目录
        //创建目录d:sixAge
        //DirectoryInfo d = Directory.CreateDirectory("d:/sixAge");

        //d1为d子目录 c:sixAge/sixAge1
        //DirectoryInfo d1 = d.CreateSubdirectory("sixAge1");

        //d2指向c:sixAge/sixAge1/sixAge1_1
        //DirectoryInfo d2 = d1.CreateSubdirectory("sixAge1_1");

        //将当前目录设为d:sixAge
        //Directory.SetCurrentDirectory("d:/sixAge");

        //创建目录d:sixAge/sixAge2
        //Directory.CreateDirectory("sixAge2");

        //创建目录d:sixAge/sixAge2/sixAge2_1
        //Directory.CreateDirectory("sixAge2/sixAge2_1");

    }

}

转自：http://hi.baidu.com/anyongqiang/item/487d6ec380749856bcef6975