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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace Test
{
    public class LogForLocal
    {
        public bool WriteFile(string FileContent, out string ErrMsg)
        {
            ErrMsg = string.Empty;
            StreamWriter writer = null;

            string sCurDate = System.DateTime.Now.ToString("yyyy_MM_dd");
            string sFile = sCurDate + ".txt";
            
            string sFolder = string.Empty;     
            
            try
            {
                sFile = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "Log\\" + sFile;
                sFolder = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "Log\\";
                if (!Directory.Exists(sFolder))
                {
                    Directory.CreateDirectory(sFolder);
                }  
                if (File.Exists(sFile))
                    writer = new StreamWriter(sFile, true, System.Text.Encoding.GetEncoding("UTF-8"));
                else
                    writer = new StreamWriter(sFile, false, System.Text.Encoding.GetEncoding("UTF-8"));
                string sDateTime = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
                writer.WriteLine("<" + sDateTime + "> " + " " + FileContent);
            }
            catch (IOException e)
            {
                ErrMsg = e.Message;
                return false;
            }
            finally
            {
                if (writer != null)
                    writer.Close();
            }
            return true;
        }
    }
}