反射创建构造方法无参或带参类的实例对象

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;

namespace ReflectionTest
{
    class Program
    {
        static void Main(string[] args)
        {
            Type personType = Type.GetType("ReflectionTest.Person",true);
            
            //带参数
            Type[] paramTypes = new Type[1];
            paramTypes[0] = typeof(string);
            ConstructorInfo ctiWithParam = personType.GetConstructor(paramTypes);
            if (ctiWithParam != null)
            {
                object[] paramArr = new object[1];
                paramArr[0] = "baobao";
                Person p = ctiWithParam.Invoke(paramArr) as Person;
                Console.WriteLine(p.Name);
            }

            //不带参数
            ConstructorInfo ctiNoParam = personType.GetConstructor(Type.EmptyTypes);
            if (ctiNoParam != null)
            {
                Person p = ctiNoParam.Invoke(null) as Person;
                Console.WriteLine(p.Name);
            }

            Console.ReadKey();
        }
    }

    class Person
    {
        public string Name { get; set; }
        public Person()
        {
            Name = "beibei";
        }
        public Person(string name)
        {
            Name = name;
        }
    }
}