using Microsoft.Practices.Unity.Configuration;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Unity;
namespace IOCDemo1
{
    class Program
    {
        static void Main(string[] args)
        {
      ContainerCodeTest1();
    }
    public static void ContainerCodeTest1()
    {
      IUnityContainer container = new UnityContainer();
      //默认注册（无命名）,如果后面还有默认注册会覆盖前面的
      container.RegisterType<IClass, CbClass>();
      //命名注册
      container.RegisterType<IClass, EcClass>("ec");
      //命名注册
      container.RegisterType<IClass, EeClass>("Ee");
      //解析默认对象
      IClass cbClass = container.Resolve<IClass>();
            Console.WriteLine(cbClass.ShowInfo("4")); 
      //指定命名解析对象
      IClass ecClass = container.Resolve<IClass>("ec");
      ecClass.ShowInfo("4");
      //指定命名解析对象
      IClass eeClass = container.Resolve<IClass>("Ee");
      eeClass.ShowInfo("4");
      获取容器中所有IClass的注册的已命名对象
      //IEnumerable<IClass> classList = container.ResolveAll<IClass>();
      //foreach (var item in classList)
      //{
      //  item.ShowInfo("4");
      //}
    }
  }
  /// <summary>
  /// 班级接口
  /// </summary>
  public interface IClass
  {
    string ClassName { get; set; }
    string ShowInfo(string s);
  }
  /// <summary>
  /// 计科班
  /// </summary>
  public class CbClass : IClass
  {
    public string ClassName { get; set; }
    public string ShowInfo(string s)
    {
      Console.WriteLine("计科班：{0}", ClassName);
      Console.ReadLine();
      return s;
    }
  }
  /// <summary>
  /// 电商班
  /// </summary>
  public class EcClass : IClass
  {
    public string ClassName { get; set; }
    public string ShowInfo(string s)
    {
      Console.WriteLine("电商班：{0}", ClassName);
      Console.ReadLine();
      return s;
    }
  }
  public class EeClass : IClass
    {
    public string ClassName { get; set; }
    public string  ShowInfo(string s)
        {
            Console.WriteLine("电商版:{0}",ClassName);
      Console.ReadLine();
      return s;
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection,Microsoft.Practices.Unity.Configuration"/>
  </configSections>
  <unity xmlns="http://schemas.microsoft.com/practices/2010/unity">
    <!--定义类型别名-->
    <aliases>
      <add alias="IClass" type="ConsoleApplication1.UnityDemo.IClass,ConsoleApplication1" />
      <add alias="CbClass" type="ConsoleApplication1.UnityDemo.CbClass,ConsoleApplication1" />
      <add alias="EcClass" type="ConsoleApplication1.UnityDemo.EcClass,ConsoleApplication1" />
    </aliases>
    <!--容器-->
    <container name="FirstClass">
      <!--映射关系-->
      <register type="IClass"  mapTo="CbClass"></register>
      <register type="IClass" name="ec" mapTo="EcClass"></register>
    </container>
  </unity>
</configuration>