/// <summary>

/// 向串口发送信息，有返回值

/// </summary>

/// <param name="serialPort"></param>

/// <param name="strMsg"></param>

/// <returns></returns>

private string QueryPortMsg(System.IO.Ports.SerialPort serial, string strMsg)

{

string MsgBuf = "";

try

{

SendPortMsg(serial, strMsg);

int rcv;

MsgBuf = "";

while (true)

{

if (serial.BytesToRead > 0)

{

rcv = serial.ReadChar();

if (rcv == '\n')

{

break;

}

else

{

if (rcv == '\r')

{

}

else

{

MsgBuf += Convert.ToChar(rcv);

}

}

}

}

}

catch (Exception Ex)

{

}

return MsgBuf;

}

/// <summary>

/// 向串口发送信息，无返回值

/// </summary>

/// <param name="serialPort">需要发送的串口</param>

/// <param name="data">发送数据</param>

private void SendPortMsg(System.IO.Ports.SerialPort serialPort, string data)

{

try

{

data = data + "\r\n";

serialPort.WriteLine(data);

}

catch

{

}

}