a. 服务端1.服务端 契约用OperationContract的Name实现重载using System;using System.Collections.Generic;using System.Linq;using System.Runtime.Serialization;using System.ServiceModel;using System.Text;    namespace WCF.Chapter2.Overloading.Host    {        [ServiceContract]        public interface IContract        {            [OperationContract(Name = "say1")]            string say();            [OperationContract(Name = "say2")]            string say(string str);        }    }2.服务实现using System;using System.Collections.Generic;using System.Linq;using System.Runtime.Serialization;using System.ServiceModel;using System.Text;namespace WCF.Chapter2.Overloading.Host.Service{    // 注意: 使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的类名“Service1”。    public class Service1 : IContract    {        public string say()        {            return "老鼠扛刀，满街找猫";        }        public string say(string str)        {            return str;        }    }}3.服务寄宿using System;using System.ServiceModel;using WCF.Chapter2.Overloading.Host.Service;namespace WCF.Chapter2.Overloading.Host{    class Program    {        static void Main(string[] args)        {            using (ServiceHost host = new ServiceHost(typeof(Service1)))            {                host.Opened += delegate                {                    Console.WriteLine("服务已开启...");                };                host.Open();                Console.ReadLine();            }            Console.WriteLine("服务已关闭...");            Console.ReadLine();        }    }}4.终结点设置
     
       
          
             
                
                   
                  
               
            
           
             
                
                   
           
            
                  
                 
               
            
         
      
     b. 客户端1.客户端契约 这个很重要需要和服务端分开不能用同一个契约，而是实现了一个等效契约，所以此处说明终结点三要素A,B,C 的A,B必须一模一样但是C只要等效就可以using System;using System.ServiceModel;namespace WCF.Chapter2.Overloading.Client{    [ServiceContract]    public interface IContract    {        [OperationContract(Name = "say1")]        string say();        [OperationContract(Name = "say2")]        string say(string str);    }}2.客户端代理 本质也是channelfactory.createchannelusing System;using System.ServiceModel;namespace WCF.Chapter2.Overloading.Client{    public class ClientProxy : ClientBase
     
      , IContract    {        public ClientProxy()        { }        public ClientProxy(string configurationName) :            base(configurationName)        { }        public string say()        {            return base.Channel.say();        }        public string say(string str)        {            return base.Channel.say(str);        }    }}3.客户端终结点配置
      
        
           
              
             
          
       
      4.调用代码using System;using System.ServiceModel;namespace WCF.Chapter2.Overloading.Client{    public class ClientProxy : ClientBase
      
       , IContract    {        public ClientProxy()        { }        public ClientProxy(string configurationName) :            base(configurationName)        { }        public string say()        {            return base.Channel.say();        }        public string say(string str)        {            return base.Channel.say(str);        }    }}