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

<configuration>

  <system.serviceModel>

    <client>     

        <endpoint  name="MyEndPoint" binding="basicHttpBinding" 

          contract="JackWangServiceClient.ICalc" address="http://localhost:9000/Add" />         

    </client> 

  </system.serviceModel>

</configuration>

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ServiceModel;

namespace JackWangServiceClient

{

    [ServiceContract]

    public interface ICalc

    {

        [OperationContract]

        long Add(int a, int b);

    }

    class Program

    {

        static void Main(string[] args)

        {

            //ICalc proxy = ChannelFactory<ICalc>.CreateChannel(new BasicHttpBinding(),

            //    new EndpointAddress("http://localhost:9000/Add"));

            ChannelFactory<ICalc> channelFactory = new ChannelFactory<ICalc>("MyEndPoint");

 

            ICalc proxy = channelFactory.CreateChannel();

            long result = proxy.Add(50, 60);

            Console.Out.WriteLine("result from server is:" + result);

            Console.ReadLine();

        }

    }

}