protected void Sp_DataReceived(object sender, SerialDataReceivedEventArgs e)
         {
             int canReadBytesLen = 0;
             if (ReceiveTimeoutEnable)
             {
                 while (sp.BytesToRead > 0)
                 {
                     canReadBytesLen = sp.BytesToRead;
                     if (receiveDatalen + canReadBytesLen > BufSize)
                     {
                         receiveDatalen = 0;
                         throw new Exception("Serial port receives buffer overflow!");
                     }
                     var receiveLen = sp.Read(recviceBuffer, receiveDatalen, canReadBytesLen);
                     if (receiveLen != canReadBytesLen)
                     {
                         receiveDatalen = 0;
                         throw new Exception("Serial port receives exception!");
                     }
                     //Array.Copy(recviceBuffer, 0, receivedBytes, receiveDatalen, receiveLen);
                     receiveDatalen += receiveLen;
                     lastReceiveTick = Environment.TickCount;
                     if (!TimeoutCheckThreadIsWork)
                     {
                         TimeoutCheckThreadIsWork = true;
                         Thread thread = new Thread(ReceiveTimeoutCheckFunc)
                         {
                             Name = "ComReceiveTimeoutCheckThread"
                         };
                         thread.Start();
                     }
                 }
             }
             else
             {
                 if (ReceivedEvent != null)
                 {
                     // 獲取字節(jié)長(zhǎng)度
                     int bytesNum = sp.BytesToRead;
                     if (bytesNum == 0)
                         return;
                     // 創(chuàng)建字節(jié)數(shù)組
                     byte[] resultBuffer = new byte[bytesNum];
 
                     int i = 0;
                     while (i < bytesNum)
                     {
                         // 讀取數(shù)據(jù)到緩沖區(qū)
                         int j = sp.Read(recviceBuffer, i, bytesNum - i);
                         i += j;
                     }
                     Array.Copy(recviceBuffer, 0, resultBuffer, 0, i);
                     ReceivedEvent(this, resultBuffer);
                     //System.Diagnostics.Debug.WriteLine("len " + i.ToString() + " " + ByteToHexStr(resultBuffer));
                 }
                 //Array.Clear (receivedBytes,0,receivedBytes.Length );
                 receiveDatalen = 0;
             }
         }

         /// <summary>
         /// 超時(shí)返回?cái)?shù)據(jù)處理線程方法
         /// </summary>
         protected void ReceiveTimeoutCheckFunc()
         {
             while (TimeoutCheckThreadIsWork)
             {
                 if (Environment.TickCount - lastReceiveTick > ReceiveTimeout)
                 {
                     if (ReceivedEvent != null)
                     {
                         byte[] returnBytes = new byte[receiveDatalen];
                         Array.Copy(recviceBuffer, 0, returnBytes, 0, receiveDatalen);
                         ReceivedEvent(this, returnBytes);
                     }
                     //Array.Clear (receivedBytes,0,receivedBytes.Length );
                     receiveDatalen = 0;
                     TimeoutCheckThreadIsWork = false;
                 }
                 else
                     Thread.Sleep(16);
             }
         }

         static void Main(string[] args)
         {
             SetLibPath();
             ShowWelcome();
 
             GetPortNames();
             ShowPortNames();
 
             if (serailports.Length == 0)
             {
                 Console.WriteLine($"Press any key to exit");
                 Console.ReadKey();
 
                 return;
             }
 #if RunIsService
             RunService();
 #endif
 
             bool quit = false;
             while (!quit)
             {
                 Console.WriteLine("\r\nPlease Input command Key\r\n");
                 Console.WriteLine("p:Show SerialPort List");
                 Console.WriteLine($"t:Test Uart:\"{selectedComPort}\"");
                 Console.WriteLine($"o:Open Uart:\"{selectedComPort}\"");
                 Console.WriteLine($"c:Close Uart:\"{selectedComPort}\"");
                 Console.WriteLine("n:select next serial port");
                 Console.WriteLine("q:exit app");
                 Console.WriteLine();
                 var key = Console.ReadKey().KeyChar;
                 Console.WriteLine();
 
                 switch (key)
                 {
                     case (Char)27:
                     case 'q':
                     case 'Q':
                         quit = true;
                         break;
                     case 's':
                         ShowWelcome();
                         break;
                     case 'p':
                         ShowPortNames();
                         break;
                     case 'n':
                         SelectSerialPort();
                         break;
                     case 't':
                         TestUart(selectedComPort);
                         break;
                     case 'w':
                         TestWinUart(selectedComPort);
                         break;
                     case 'o':
                         OpenUart(selectedComPort);
                         break;
                     case 'c':
                         CloseUart();
                         break;
                 }
             }
         }