日志类：LogManager

public class LogManager
    {
        private static string logPath = string.Empty;

        /// <summary>
        /// 保存日志的文件夹，web默认在bin文件夹，如需指定文件夹：HttpContext.Current.Server.MapPath("~/Journal") + "\";。
        /// </summary>
        public static string LogPath
        {
            get
            {
                if (logPath == string.Empty)
                {
                    if (System.Web.HttpContext.Current == null)
                        // Windows Forms 应用
                        logPath = AppDomain.CurrentDomain.BaseDirectory;
                    else
                        // Web 应用
                        logPath = AppDomain.CurrentDomain.BaseDirectory + @"bin";
                }
                return logPath;
            }
            set { logPath = value; }
        }



        /// <summary>
        /// 写日志
        /// </summary>
        /// <param name="logFile">日志文件名</param>
        /// <param name="msg">日志消息</param>
        public static void WriteLog(string logFile, string msg)
        {
            try
            {
                string Path = LogPath + logFile + " " + DateTime.Now.ToString("yyyyMMdd") + ".Log";
                System.IO.StreamWriter sw = System.IO.File.AppendText(Path);
                sw.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss: ") + msg);
                sw.Close();

            }
            catch (Exception e)
            {
                Console.WriteLine(e);
            }


        }


    }