C# TCP/IP 服务器响应文本

C# TCP/IP Server Response Text

我正在编写一些软件来与通过 TCP/IP 连接的激光打标机进行通信。我正在使用socket测试来模拟这台机器。

我希望收到我已放入代码中的机器的一组特定响应:

public static bool CheckConnection(string com, string server, int port)
    {
        try
        {
            Console.WriteLine("Setting up TCP/IP");
            TcpClient client = new TcpClient(server, port);

            NetworkStream stream = client.GetStream();


            Byte[] Data = System.Text.Encoding.ASCII.GetBytes(com);
            stream.Write(Data, 0, Data.Length);
            Console.WriteLine("Sent: {0}", com);

            Data = new Byte[256];
            Int32 bytes = stream.Read(Data, 0, Data.Length);
            string response = System.Text.Encoding.ASCII.GetString(Data, 0, bytes);
            Console.WriteLine("Response: {0}", response);
            if (response != "VS 1")
            {
                Console.WriteLine("Connection Test failed! Invalid response.");
                stream.Close();
                client.Close();
                return false;
            }
            else
            {
                Console.WriteLine("Connection Test Successful!");
                stream.Close();
                client.Close();
                return true;
            }
        }
        catch (SocketException e)
        {
            Console.WriteLine("Socket Exception: {0}", e);
            return false;
        }

    }

string response = System.Text.Encoding.ASCII.GetString(Data, 0, bytes); 有效,但它 returns '"VS 1\r\n"' 导致 'if' 语句评估为 false。

有没有办法 return 只从流中输入信息?

您可以trim:

string response = System.Text.Encoding.ASCII.GetString(Data, 0, bytes).Trim();