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I am new at programming.

I am making a terminal program for some testing, the program has to send and receive data over serial-null modem. I found an example at MSDN: http://msdn.microsoft.com/en-us/library/y2sxhat8.aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-2

But I cant get it to work. Here is what I have now:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO.Ports;
using System.Threading;

namespace Terminal_0._0._0._2
{
    class Program
    {
        public static void Main()
        {
            string name;
            string message;
            StringComparer stringComparer = StringComparer.OrdinalIgnoreCase;
            Thread readThread = new Thread(Read);

            // Create a new SerialPort object with default settings.
            SerialPort _serialPort = new SerialPort();

            // Allow the user to set the appropriate properties.
            _serialPort.PortName = "COM8";
            _serialPort.BaudRate = 115200;
            _serialPort.Parity = Parity.None;
            _serialPort.DataBits = 8;
            _serialPort.StopBits = StopBits.One;
            _serialPort.Handshake = Handshake.None;

            // Set the read/write timeouts
            _serialPort.ReadTimeout = 500;
            _serialPort.WriteTimeout = 500;

            _serialPort.Open();
            var _continue = true;
            readThread.Start();

            Console.Write("Name: ");
            name = Console.ReadLine();

            Console.WriteLine("Type QUIT to exit");

            while (_continue)
            {
                message = Console.ReadLine();

                if (stringComparer.Equals("quit", message))
                {
                    _continue = false;
                }
                else
                {
                    _serialPort.WriteLine(
                        String.Format("<{0}>: {1}", name, message));
                }
            }

            readThread.Join();
            _serialPort.Close();
        }



    }
    public static void Read()
        {
            while (_continue)
            {
                try
                {
                    string message = _serialPort.ReadLine();
                    Console.WriteLine(message);
                }
                catch (TimeoutException) { }
            }
        }
}

I get this error: Expected class, delegate, enum, interface, or struct on line: 66 Column: 19

Thanks in advance.

4

1 回答 1

1

据我所知，可能有几件事导致它不起作用。首先，Read 方法在 Program 范围之外，导致它不起作用。其次，将其移入内部也不起作用，直到您还创建“_continue”和“_serialPort”字段（外部方法）。

重新编写的代码（删除了多余的“使用”语句）：

using System;
using System.IO.Ports;
using System.Threading;

namespace Terminal_0._0._0._2
{
    class Program
    {
        private static bool _continue;
        private static SerialPort _serialPort;

        public static void Main()
        {
            string name;
            string message;
            StringComparer stringComparer = StringComparer.OrdinalIgnoreCase;
            var readThread = new Thread(Read);

            // Create a new SerialPort object with default settings.
            _serialPort = new SerialPort
                {
                    PortName = "COM8",
                    BaudRate = 115200,
                    Parity = Parity.None,
                    DataBits = 8,
                    StopBits = StopBits.One,
                    Handshake = Handshake.None,
                    ReadTimeout = 500,
                    WriteTimeout = 500
                };

            // Allow the user to set the appropriate properties.

            // Set the read/write timeouts

            _serialPort.Open();
            _continue = true;
            readThread.Start();

            Console.Write("Name: ");
            name = Console.ReadLine();

            Console.WriteLine("Type QUIT to exit");

            while (_continue)
            {
                message = Console.ReadLine();

                if (stringComparer.Equals("quit", message))
                {
                    _continue = false;
                }
                else
                {
                    _serialPort.WriteLine(
                        String.Format("<{0}>: {1}", name, message));
                }
            }

            readThread.Join();
            _serialPort.Close();
        }

        public static void Read()
        {
            while (_continue)
            {
                try
                {
                    string message = _serialPort.ReadLine();
                    Console.WriteLine(message);
                }
                catch (TimeoutException) { }
            }
        }
    }
}

由于我没有任何串口设备，我无法测试它，但编译器编译它没有错误。

谢谢比亚克

于 2013-06-25T15:49:38.350 回答