LogHelper

public class LogHelper
    {
        private static string AppPath = System.IO.Directory.GetCurrentDirectory();private static string IsErrorLog = ConfigurationManager.AppSettings["ErrorLog"].ToString().Trim();
/// <summary>
        /// 写日志
        /// </summary>
        public static void WriteLog(string logFilePrefix, string logtype, string msg)
        {
            try
            {
                if (!Directory.Exists(AppPath + "\\Log"))
                {
                    Directory.CreateDirectory(AppPath + "\\Log");
                }
                string logPath = AppPath + "\\Log\\";

                System.IO.StreamWriter sw = System.IO.File.AppendText(logPath + logFilePrefix + DateTime.Now.ToString("yyyyMMdd") + ".log");
                sw.WriteLine("【" + DateTime.Now.ToString("HH:mm:ss.fff") + "," + logtype + "】" + msg);
                sw.Close();
                sw.Dispose();
            }
            catch
            {
            }
        }

        public static void Error(string msg)
        {
            if (IsErrorLog != "N")
            {
                WriteLog("Error_", "Error", msg);
            }
        }
       
    }