从C#中的串口读取

using System;
using System.IO.Ports;

class SerialPortExample
{
    static void Main()
    {
        SerialPort serialPort = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);

        try
        {
            serialPort.Open();
            serialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
        }
        catch (Exception ex)
        {
            Console.WriteLine("Error opening serial port: " + ex.Message);
        }

        Console.ReadLine();
    }

    private static void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
    {
        SerialPort sp = (SerialPort)sender;
        string indata = sp.ReadExisting();
        Console.WriteLine("Data Received: " + indata);
    }
}