Code
    [ServiceContract]
    public interface IHello
    {
        [OperationContract]
        void SayHello(string name);
    }

Code
    public class Hello:IHello
    {
        #region IHello Members

public void SayHello(string name)
        {
            Console.WriteLine(string.Format("Hello {0}", name));
        }

#endregion
    }

Code
<system.serviceModel>
    <services>
      <service behaviorConfiguration="Fastyou.WCF.ServiceLib.HelloBehavior"
        name="Fastyou.WCF.ServiceLib.Hello">
        <endpoint address="" binding="basicHttpBinding" contract="Fastyou.WCF.Contracts.IHello">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="Fastyou.WCF.ServiceLib.HelloBehavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

Code
        static void Main(string[] args)
        {
            try
            {
                ServiceHost helloHost = new ServiceHost(typeof(Hello));
                helloHost.Opened += delegate
                {
                    Console.WriteLine("服务已经启动！");
                    
                };
                helloHost.Open();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            Console.Read();
        } 

Code
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.serviceModel>
        <services>
            <service name="Fastyou.WCF.ServiceLib.Hello" behaviorConfiguration="helloBehavior">
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8089/Hello"/>
          </baseAddresses>
        </host>
        <endpoint address="Hello" binding="basicHttpBinding" contract="Fastyou.WCF.Contracts.IHello">
                    <identity>
                        <dns value="localhost"/>
                    </identity>
                </endpoint>
        <endpoint binding="mexHttpBinding" contract="IMetadataExchange" address="mex" />
            </service>
        </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="helloBehavior">
          <serviceMetadata httpGetEnabled="true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

Code

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")]
    [System.ServiceModel.ServiceContractAttribute(ConfigurationName = "IHello")]
    public interface IHello
    {

[System.ServiceModel.OperationContractAttribute(Action = "http://tempuri.org/IHello/SayHello", ReplyAction = "http://tempuri.org/IHello/SayHelloResponse")]
        void SayHello(string name);
    }

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")]
    public interface IHelloChannel : IHello, System.ServiceModel.IClientChannel
    {
    }

[System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "3.0.0.0")]
    public partial class HelloClient : System.ServiceModel.ClientBase<IHello>, IHello
    {

public HelloClient()
        {
        }

public HelloClient(string endpointConfigurationName) :
            base(endpointConfigurationName)
        {
        }

public HelloClient(string endpointConfigurationName, string remoteAddress) :
            base(endpointConfigurationName, remoteAddress)
        {
        }

public HelloClient(string endpointConfigurationName, System.ServiceModel.EndpointAddress remoteAddress) :
            base(endpointConfigurationName, remoteAddress)
        {
        }

public HelloClient(System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) :
            base(binding, remoteAddress)
        {
        }

public void SayHello(string name)
        {
            base.Channel.SayHello(name);
        }
    }

Code
static void Main(string[] args)
        {
            HelloWorld();
        }
        static void HelloWorld()
        {
            try
            {
                Console.WriteLine("-----------------------request begin-----------------------");
                #region code for client;
                //BasicHttpBinding bind = new BasicHttpBinding();
                //EndpointAddress address = new EndpointAddress("http://localhost:8089/hello/hello");

//HelloClient ws = new HelloClient(bind, address);
                //ws.SayHello("I'm fastyou. \r\n");
                //ws.Close();
                #endregion

#region configuration for client

HelloClient hc = new HelloClient("BasicHttpBinding_IHello");
                hc.SayHello("I'm fastyou. \r\n");
                hc.Close();

#endregion

Console.WriteLine("-------------------------request end------------------------------------");
                Console.WriteLine("\r\n\r\n\r\n");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

Console.Read();
        }

Code
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding name="BasicHttpBinding_IHello" closeTimeout="00:01:00"
            openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
            allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
            maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
            messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
            useDefaultWebProxy="true">
          <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
              maxBytesPerRead="4096" maxNameTableCharCount="16384" />
          <security mode="None">
            <transport clientCredentialType="None" proxyCredentialType="None"
                realm="" />
            <message clientCredentialType="UserName" algorithmSuite="Default" />
          </security>
        </binding>
      </basicHttpBinding>
    </bindings>
    <client>
      <endpoint address="http://localhost:8089/Hello/Hello"
          binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IHello"
          contract="IHello" name="BasicHttpBinding_IHello" />
    </client>
  </system.serviceModel>
</configuration>