C#写入日志到文本文件的代码

C#写入日志到文本文件的代码

using System.IO;
public static void ErrorLog(string mssg) {
	string FilePath = HttpContext.Current.Server.MapPath("~/log/ErrorLog.txt");
	try
	{
		if (File.Exists(FilePath))
		{
			using (StreamWriter tw = File.AppendText(FilePath))
			{
				tw.WriteLine(DateTime.Now.ToString() + "> " + mssg);
			}  //END using
		}  //END if
		else
		{
			TextWriter tw = new StreamWriter(FilePath);
			tw.WriteLine(DateTime.Now.ToString() + "> " + mssg);
			tw.Flush();
			tw.Close();
			tw = null;
		}  //END else
	}  //END Try
	catch (Exception ex)
	{ } //END Catch   
}  // END ErrorLog