C# Log파일

public void WriteLog(string logMessage)
{
    logMessage = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + " : " + logMessage;
    string logpath = Application.StartupPath + @"\Logs";

    try
    {
        DirectoryInfo di = new DirectoryInfo(logpath);
        if (di.Exists == false)
        {
            di.Create();
        }

        File.AppendAllText(logpath + @"\" + DateTime.Now.ToString("yyyy-MM-dd") + ".txt", logMessage + "\r\n", System.Text.Encoding.Default);
    }
    catch (Exception)
    {
    }
}