日志很明显是帮助大家定位到问题的一个很重要的手段，本来是想直接使用的NLog 来做系统的日志工具，哎伤不起，一变态非要说这个有很多不可控制的因素，这里我给大家讲一下我是怎么实现日志模块的，欢迎拍砖

总体架构图

"codetitle">复制代码 代码如下:
/// <summary>
    /// 日志等级
    /// </summary>
    public enum Loglevel
    {
        Track=1,
        Bug,
        Error
    }

"codetitle">复制代码 代码如下:
public interface ILogTarget
    {
        /// <summary>
        /// 写入追踪信息
        /// </summary>
        /// <param name="LogContent"></param>
        void WriteTrack(string LogContent);

        /// <summary>
        /// 写入BUG信息
        /// </summary>
        /// <param name="LogContent"></param>
        void WriteBug(string LogContent);

        /// <summary>
        /// 写入错误信息
        /// </summary>
        /// <param name="LogContent"></param>
        void WriteError(string LogContent);

    }


"codetitle">复制代码 代码如下:
/// <summary>
    /// 文件日志实现类
    /// </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();
        }
    }

复制代码 代码如下:
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();
        }
    }

复制代码 代码如下:
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);
        }
    }

"codetitle">复制代码 代码如下:
SmartLog log =new SmartLog (new FileLog());

log.WriteTrack("Hello word");