C#實作本地文本日志

提供一個簡單的本地日志方法：

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

namespace PubMethod.Pub
{
    class log
    {
        public static void write(string strLog)
        {
            string sFilePath = "c:\\log\\" + DateTime.Now.ToString("yyyyMM");
            string sFileName = "" + DateTime.Now.ToString("yyyy-MM-dd") + ".log";
            sFileName = sFilePath + "\\" + sFileName; //檔案的絕對路徑
            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))
            //驗證檔案是否存在，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();
        }
    }
}