C#读写文本文件

//写文本文件
FileStream   fs   =   new   FileStream(@ "c:\myfile.txt ",FileMode.Create);
StreamWriter   writer   =   new   StreamWriter(fs);
writer.WriteLine( "The   first   line   here ");
writer.WriteLine( "The   second   line   here ");
writer.WriteLine( "ending   now ");
writer.Flush();
fl.Close();

//读取文本文件： 
StreamReader objReader = new StreamReader("c:\\myfile.txt",Encoding.Default);
string sLine="";
ArrayList arrText = new ArrayList();

while (sLine != null)
{
  sLine = objReader.ReadLine();
  if (sLine != null)
     arrText.Add(sLine);
}
objReader.Close();

foreach (string sOutput in arrText)
    Console.WriteLine(sOutput);
Console.ReadLine();