unity dependency injection - 具有多个接口作为参数的构造函数

Question

我有一组接口和类：

    public interface IA
    {
      ...
    }
    public class A: IA
    {
      ...
    }

我想把依赖注入的类：

    public class MyClass
    {
      private readonly IA _aRepo;
      private readonly IB _bRepo;
      private readonly IC _cRepo;

     public MyClass(IA aRepo, IB bRepo, IC cRepo)
     {
       _aRepo = aRepo;
       _bRepo = bRepo;
       _cRepo = cRepo;
     } 
    }

依赖是：

public class Test
{
 private MyClass myClass;

 public Test()
 {
    //original call
    //myClass = new MyClass(new A(), new B(), new C());

    IUnityContainer container = new UnityContainer();
    container.RegisterType<IA, A>();
    container.RegisterType<IB, B>();
    container.RegisterType<IC, C>();
    //not sure what to do here...
    container.RegisterType<MyClass>(new InjectionConstructor(new ResolvedParameter<IA>(), new ResolvedParameter<IB>(), new ResolvedParameter<IC>()));

    myClass = container.Resolve<MyClass>();
}

}

我是DI的新手，想问一下如何解决MyClass的注入问题，它接受多个接口作为参数？