C#文件访问

using System.IO; using System.Diagnostics; private void button3_Click(object sender, EventArgs e)         {             OpenFileDialog dig = new OpenFileDialog();             DialogResult result = dig.ShowDialog();             if (result == DialogResult.OK)             {                 string path = dig.FileName;                 FileStream file = new FileStream(path, FileMode.Open);                 StreamReader read = new StreamReader(file, Encoding.UTF8);                                  string []strSpite = null;                 while(true)                 {                     string strline = read.ReadLine();                     if (strline == null || strline.Length == 0) break;                     strSpite = strline.Split('\t');                     Debug.WriteLine(strSpite[0]+"\t"+strSpite[1]+"\t"+strSpite[0]);                 }             }         }

utf-8格式的txt文件