C#中委托异步调用输出日志

//调试输出信息委托

        public delegate void debugTest(string info);

       

 

        //文件记录路径，应用程序目录下

        string pathfile =
Environment.CurrentDirectory + "\\J600SCPI_Test.txt";

 

        /// <summary>

        /// 委托函数

        /// </summary>

        /// <param name="info">信息</param>

        public  void debugout(string info)

        {

            try

            {

                string outinfo =
DateTime.Now.ToString()+"\t"+info+"\r\n";

                if (File.Exists(pathfile))

                {

                    StreamWriter filewrite =
File.AppendText(pathfile);

                    filewrite.Write(outinfo);

                    filewrite.Close();

                }

                else

                {

                    StreamWriter filewrite =
File.CreateText(pathfile);

                    filewrite.Write(outinfo);

                    filewrite.Close();

                }

                

                

            }

            catch (Exception ex)

            {

                Functions.Print(ex);

            }

        }

 

    //调用委托异步输出日志

     debugTest debug_test =
new debugTest(debugout);

     debug_test.BeginInvoke("开始",null,null);