/// <summary>

    /// 日志处理帮助类

    /// </summary>

    public class LogHelper

    {

        private static Queue<string> ErrorQueue = new Queue<string>();

        static Action<string> errorAction;

        static string LogPath => System.Web.Hosting.HostingEnvironment.MapPath($"/App_Data/Log/{DateTime.Now.ToString("yyyyMMdd")}.txt");

        static LogHelper()

        {

            errorAction += WriteFile;

            Task.Run(() =>

            {

                while (true)

                {

                    if (ErrorQueue.Count > )

                    {

                        lock (ErrorQueue)

                        {

                            var txt = ErrorQueue.Dequeue(); //出队列

                            errorAction?.Invoke(txt);   //写日志

                        }

                    }

                    else

                    {

                        Task.Delay();

                    }

                }

            });

        }

        /// <summary>

        /// 讲内容写入日志队列中

        /// </summary>

        /// <param name="errorText"></param>

        public static void WriteLog(string errorText)

        {

            lock (ErrorQueue)

            {

                ErrorQueue.Enqueue(errorText); //进队列

            }

        }

        /// <summary>

        /// 写入文本文件

        /// </summary>

        /// <param name="txt"></param>

        static void WriteFile(string txt)

        {

            using (System.IO.FileStream fs = new System.IO.FileStream(LogPath, System.IO.FileMode.Append, System.IO.FileAccess.Write))

            {

                var byteStr = Encoding.Default.GetBytes(txt);

                fs.Write(byteStr, , byteStr.Length);

            }

        }

    }