C# 記錄日誌

        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; //文件的絕對路徑
            if (!Directory.Exists(sFilePath))//驗證路徑是否存在
            {
                Directory.CreateDirectory(sFilePath);
                //不存在則建立
            }
            FileStream fs;
            StreamWriter sw;
            if (File.Exists(sFileName))
            //驗證文件是否存在，有則追加，無則建立
            {
                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();
        }

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