遇到了這樣一個問題，誰能解釋一下是什么回事？ WCF宿主程序是一個控制臺程序，代碼如下 ??????? static void Main(string[] args)??????? {??????????? //HostingServiceViaCode();??????????? using (ServiceHost calculatorServiceHost = new ServiceHost(typeof(CalculatorService)))??????????? {??????????????? calculatorServiceHost.Opened += delegate { Console.WriteLine("Calculator Service begin to listen via the Address:{0}", calculatorServiceHost.BaseAddresses[0].ToString()); };??????????????? calculatorServiceHost.Open();??????????????? Console.Read();??????????? }??????? ??????? } 運(yùn)行宿主程序，開啟服務(wù)。運(yùn)行客戶端程序，正常。 可當(dāng)我把Console.Read();移到Using語句的外面，如下： ??????? static void Main(string[] args)??????? {??????????? //HostingServiceViaCode();??????????? using (ServiceHost calculatorServiceHost = new ServiceHost(typeof(CalculatorService)))??????????? {??????????????? calculatorServiceHost.Opened += delegate { Console.WriteLine("Calculator Service begin to listen via the Address:{0}", calculatorServiceHost.BaseAddresses[0].ToString()); };??????????????? calculatorServiceHost.Open();??????????????? ??????????? }??????????? Console.Read();??????? } 再運(yùn)行客戶端程序，結(jié)果報一下錯誤： Message:無法連接到 http://localhost:8889/GeneralCalculator。TCP 錯誤代碼 10061:由于目標(biāo)計算機(jī)積極拒絕，無法連接。 127.0.0.1:8889。