C#反射の反射接口

    public interface IPerson
    {
         void SetName(string name);
         void SayHello();     
    }

namespace people
{
    public class People:IPerson
    {
        public string Name
        {
            set;
            get;
        }

        public string Sex
        {
            set;
            get;
        }

        public string Age
        {
            set;
            get;
        }

        public People(){}

        public People(string name)
        {
            Name = name;
        }

        public void SetName(string name)
        {
            Name = name;
        }

        public void SayHello()
        {
            Console.WriteLine("大家好，我是："+Name);
        }

    }
}

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {

            IPerson iperson = null;
            Assembly assembly = Assembly.Load("people");
            Type[] types = assembly.GetTypes();
            foreach (var t in types)
            {
                if (t.GetInterface("IPerson") != null)
                {
                    iperson = (IPerson)Activator.CreateInstance(t);
                }
            }

            if (iperson != null)
            {
                iperson.SetName("彭禺厶");
                iperson.SayHello();
            }

            Console.ReadLine();
        }
    }
}