using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ServiceModel;



namespace MagicEightBallServiceLib

{

    [ServiceContract]

    public interface IEightBall

    {

        [OperationContract]

        string ObtainAnswer(string userQuestion);

    }

    public class MagicEightBallService:IEightBall

    {

        #region IEightBall 成员

        public MagicEightBallService()

        {

            Console.WriteLine("The magic 8 ball awaits for your answer");

        }

        public string ObtainAnswer(string userQuestion)

        {

            string[] answer = { "Future uncertain", "yes", "no", "Hazy" };

            Random r = new Random();

            return String.Format("{0}?{1}", userQuestion, answer[r.Next(answer.Length)]);

        }



        #endregion

    }

}

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <system.serviceModel>

    <services>

      <service name="MagicEightBallServiceLib.MagicEightBallService">

        <endpoint address="http://localhost:8080/MagicEightBallService"

                  binding="basicHttpBinding" contract="MagicEightBallServiceLib.IEightBall"/>

      </service>

    </services>

  </system.serviceModel>

</configuration>

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ServiceModel;

using MagicEightBallServiceLib;



namespace MagicEightBallServiceHost

{

    class Program

    {

        static void Main(string[] args)

        {

            Console.WriteLine("Console basic WCF host");

            using (ServiceHost serviceHost=new ServiceHost("MagicEightBallService"))

            {

             &nbs