Source code sharing for C# logging class creation

using System;
using System.IO;


namespace WindowsFormsApplication1
{
    public static class LogerHelper
    {
        #region  创建日志
        ///-----------------------------------------------------------------------------
        /// <summary>创建错误日志 在c:\ErrorLog\</summary>
        /// <param name="message">记录信息</param>
        /// <returns></returns>
        ///-----------------------------------------------------------------------------
        public static void CreateLogTxt(string message)
        {
            string strPath;                                                   //文件的路径
            DateTime dt = DateTime.Now;
            try
            {
                strPath = Directory.GetCurrentDirectory() + "\\Log";          //winform工程\bin\目录下 创建日志文件夹 

                if(Directory.Exists(strPath)==false)                          //工程目录下 Log目录 &#39;目录是否存在,为true则没有此目录
                {
                    Directory.CreateDirectory(strPath);                       //建立目录　Directory为目录对象
                }    
                strPath = strPath + "\\" + dt.ToString("yyyy");

                if(Directory.Exists(strPath) == false)                     
                {
                    Directory.CreateDirectory(strPath);               
                }
                strPath = strPath + "\\" + dt.Year.ToString() + "-" + dt.Month.ToString() + ".txt"; 
                
                StreamWriter FileWriter= new StreamWriter(strPath, true);           //创建日志文件
                FileWriter.WriteLine("[" + dt.ToString("yyyy-MM-dd HH:mm:ss") + "]  " + message); 
                FileWriter.Close();                                                 //关闭StreamWriter对象
            }
            catch(Exception ex)
            {
                string str=ex.Message.ToString();
            }
        }
        #endregion

    }
}