C# 记录日志

        public static void WriteLog(string strLog)
        {
            string sFilePath = "d:\FileLog\" + DateTime.Now.ToString("yyyyMM");
            string sFileName = "Log" + DateTime.Now.ToString("dd") + ".log";
            sFileName = sFilePath + "\" + sFileName; //文件的绝对路径
            if (!Directory.Exists(sFilePath))//验证路径是否存在
            {
                Directory.CreateDirectory(sFilePath);
                //不存在则创建
            }
            FileStream fs;
            StreamWriter sw;
            if (File.Exists(sFileName))
            //验证文件是否存在，有则追加，无则创建
            {
                fs = new FileStream(sFileName, FileMode.Append, FileAccess.Write);
            }
            else
            {
                fs = new FileStream(sFileName, FileMode.Create, FileAccess.Write);
            }
            sw = new StreamWriter(fs);
            sw.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss") + "   ---   " + strLog);
            sw.Close();
            fs.Close();
        }