C# TCP/IP通信，Socket通信例子

1、服务端建立监听，等待客户端连接

class Program
    {
        static void Main(string[] args)
        {

            TcpListener listener = new TcpListener(IPAddress.Parse("127.0.0.1"), 8000);
            Console.WriteLine("1.服务端建立监听");
            listener.Start();
            Console.WriteLine("等待客户端连接");
            TcpClient tcpClient = listener.AcceptTcpClient();
            Console.WriteLine("2.1客户端已经连接");
            Console.WriteLine("2.2获取到客户端传过来报文流");
            NetworkStream stream = tcpClient.GetStream();
            Console.WriteLine("3.初始化一个字节数组");
            byte[] data = new byte[1024];
            Console.WriteLine("4.从流中读取内容到字节数组");
            int length = stream.Read(data, 0, 1024);
            Console.WriteLine("5.将字节数组中的内容解析为字符串");
            string message = Encoding.UTF8.GetString(data, 0, length);
            Console.WriteLine("6.打印");
            Console.WriteLine(message);
            Console.WriteLine("7.关闭流");
            stream.Close();
            Console.WriteLine("8.停止监听者");
            listener.Stop();
            Console.WriteLine("9.程序结束");
            Console.ReadKey();
        }
    }

2.从主机连接得到客户端

class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("0.声明一个客户端");
            TcpClient tcpClient = new TcpClient("127.0.0.1", 8000);
            Console.WriteLine("1.从客户端得到一个流");
            NetworkStream stream = tcpClient.GetStream();
            Console.WriteLine("2.请输入要发送的内容");
            string message = Console.ReadLine();
            Console.WriteLine("3.将输入的字符串解析为字节数组");
            byte[] data = Encoding.UTF8.GetBytes(message);
            Console.WriteLine("4.将字节内容写入流");
            stream.Write(data, 0, data.Length);
            Console.WriteLine("5.关闭流");
            stream.Close();
            Console.WriteLine("7.关闭客户端");
            tcpClient.Close();
            Console.WriteLine("8.程序结束");
            Console.ReadKey();
      }
    }