一、官方的一個列子

        /// <summary>
        /// 服務端---當前例子寫入資料
        /// </summary>
        static void TestServer()
        {
            using (NamedPipeServerStream pipeServer = new NamedPipeServerStream("testpipe", PipeDirection.Out))
            {
                // Wait for a client to connect
                pipeServer.WaitForConnection();
                
 
try
                {
                    // Read user input and send that to the client process.
                    using (StreamWriter sw = new StreamWriter(pipeServer))
                    {
                        for (int i = 0; i < 20; i++)
                        {
                            sw.AutoFlush 
 
= true;
                            sw.WriteLine($"Enter text: {i}");
                            pipeServer.WaitForPipeDrain();
                        }
                    }
                }
                // Catch the IOException that is raised if the pipe is broken
                // or disconnected.
 

                catch (IOException e)
                {
                    Console.WriteLine("ERROR: {0}", e.Message);
                }
            }
        }

        /// <summary>
        /// 客戶端--當前例子接收資料
        /// </summary>
        static void TestCilent()
        {
            Thread thread = new Thread(() =>
              {
                  using (NamedPipeClientStream pipeClient = new NamedPipeClientStream(".", "testpipe", PipeDirection.In))
                  {

                      // Connect to the pipe or wait until the pipe is available.
                      pipeClient.Connect();

                      Console.WriteLine("There are currently {0} pipe server instances open.",
                         pipeClient.NumberOfServerInstances);
                      using (StreamReader sr = new StreamReader(pipeClient))
                      {
                          // Display the read text to the console
                          string temp;
                          while ((temp = sr.ReadLine()) != null)
                          {
                              Console.WriteLine("Received from server: {0}", temp);
                              Thread.Sleep(200);
                          }
                      }
                  }
              });
            //thread.IsBackground = true;
            //thread.SetApartmentState(ApartmentState.STA);
            thread.Start();
        }

呼叫示例

            for (int i = 0; i < 5; i++)
            {
                TestCilent();
                TestServer();
            }