日志很明顯是幫助大家定位到問題的一個很重要的手段，本來是想直接使用的NLog 來做系統的日志工具，哎傷不起，一變態非要說這個有很多不可控制的因素，這里我給大家講一下我是怎么實現日志模塊的，歡迎拍磚

總體架構圖

•    在這里我把日子的等級分為 跟蹤，BUG 和錯誤 3種  定義枚舉如下

復制代碼 代碼如下:

/// <summary>
    /// 日志等級
    /// </summary>
    public enum Loglevel
    {
        Track=1,
        Bug,
        Error
    }

復制代碼 代碼如下:

public interface ILogTarget
    {
        /// <summary>
        /// 寫入追蹤信息
        /// </summary>
        /// <param></param>
        void WriteTrack(string LogContent);

        /// <summary>
        /// 寫入BUG信息
        /// </summary>
        /// <param></param>
        void WriteBug(string LogContent);

        /// <summary>
        /// 寫入錯誤信息
        /// </summary>
        /// <param></param>
        void WriteError(string LogContent);

    }

復制代碼 代碼如下:

/// <summary>
    /// 文件日志實現類
    /// </summary>
    public class FileLog : ILogTarget
    {
        public void WriteTrack(string LogContent)
        {
            throw new NotImplementedException();
        }

        public void WriteBug(string LogContent)
        {
            throw new NotImplementedException();
        }

        public void WriteError(string LogContent)
        {
            throw new NotImplementedException();
        }
    }

復制代碼 代碼如下:

public class DBLog : ILogTarget
    {
        public void WriteTrack(string LogContent)
        {
            throw new NotImplementedException();
        }

        public void WriteBug(string LogContent)
        {
            throw new NotImplementedException();
        }

        public void WriteError(string LogContent)
        {
            throw new NotImplementedException();
        }
    }

復制代碼 代碼如下:

public class SmartLog
    {
        private ILogTarget _adaptee;

        public SmartLog(ILogTarget tragent)
        {
            this._adaptee = tragent;
        }
        public void WriteTrack(string LogContent)
        {
            _adaptee.WriteTrack(LogContent);
        }

        public void WriteBug(string LogContent)
        {
            _adaptee.WriteBug(LogContent);
        }

        public void WriteError(string LogContent)
        {
            _adaptee.WriteError(LogContent);
        }
    }

復制代碼 代碼如下:

SmartLog log =new SmartLog (new FileLog());

log.WriteTrack("Hello word");