简单好用的写日志文件代码

public void Log(string msg)
        {
            FileInfo file = new FileInfo("C:\\ErrorLog.txt");

            if (!file.Exists)
            {
                file.Create();
            }

            StreamWriter stream = file.AppendText();

            stream.WriteLine("DateTime:" + DateTime.Now.ToString());
            stream.WriteLine(msg);

            stream.Close();
        }