如何将文本一行行写入dat文件

Question

现在需要将一行一行的文本写入到dat文件，每写一行要换行，要写入的数据是从数据库取出的，
dat文件时自己生成的，还请帮忙，最好有code，谢谢！

Answer 1

        System.IO.StreamWriter sw = null;
        try
        {
            sw = new System.IO.StreamWriter(@"d:\data.dat", true);
            for (int i = 0; i < 10; i++)
            {
                sw.WriteLine(String.Format("Item {0}.", i));
            }
            sw.Flush();
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {            sw.Close();
            sw.Dispose();
        }

Answer 2

File.AppendText
File.WriteAllLines
StreamWriter

Answer 3

WriteLine

Answer 4

更 读取记事本是一样的 。
//生成批处理文件用于重启程序
                string bat=Path.Combine(AppDomain.CurrentDomain.BaseDirectory,"update.bat");
                if (File.Exists(bat))
                    File.Delete(bat);
                using(StreamWriter sw=new StreamWriter(bat,true))
                {
                    sw.WriteLine("@echo off");
                    sw.WriteLine(":find");
                    FileInfo appexe = new FileInfo(Application.ExecutablePath);
                    sw.WriteLine(string.Format("tasklist|find \"{0}\" ||goto next", appexe.Name));
                    sw.WriteLine("goto find");
                    sw.WriteLine(":next");
                    foreach (string name in okfiles)
                    {
                         sw.WriteLine(string.Format("copy update\\{0} {1} /y",name,name));
                    }
                    sw.WriteLine("start "+Application.ExecutablePath);
                    sw.WriteLine("del %0");
                    sw.WriteLine("exit");
                }
                System.Diagnostics.Process.Start(bat);
                Environment.Exit(0);