C#保存listbox中数据到文本文件的方法

private void SaveLstToTxt(ListBox lst){ sfd.Filter = "(*.txt)|*.txt"; if (sfd.ShowDialog() == DialogResult.OK) {  string sPath = sfd.FileName;  FileStream fs = new FileStream(sPath, FileMode.Create);  StreamWriter sw = new StreamWriter(fs, Encoding.UTF8);  int iCount = lst.Items.Count - 1;  for (int i = 0; i <= iCount; i++)  {   sw.WriteLine(lst.Items[i].ToString());  }  sw.Flush();  sw.Close();  fs.Close(); }}