using System;
using System.Collections.Generic;

namespace NetCoreList
{
    //类People，是引用类型
    class People
    {
        public string Name
        {
            get;
            set;
        }
    }

    //结构体Person，是值类型
    struct Person
    {
        public string Name
        {
            get;
            set;
        }
    }


    class Program
    {
        //显示Person集合所有元素
        static void DisplayPersonCollection(List<Person> collection)
        {
            Console.WriteLine("==========PersonCollection==========");

            foreach (Person person in collection)
            {
                Console.WriteLine("Person:" + person.Name);
            }
        }

        //显示People集合所有元素
        static void DisplayPeopleCollection(List<People> collection)
        {
            Console.WriteLine("==========PeopleCollection==========");

            foreach (People people in collection)
            {
                Console.WriteLine("People:" + people?.Name);
            }
        }

        static void Main(string[] args)
        {
            //定义一个Person
            Person person = new Person()
            {
                Name = "Jack"
            };

            //定义一个People
            People people = new People()
            {
                Name = "Jack"
            };

            Console.WriteLine("person‘s name is:" + person.Name);
            Console.WriteLine("people‘s name is:" + people.Name);

            //定义Person集合personCollection
            List<Person> personCollection = new List<Person>();
            personCollection.Add(person);
            personCollection.Add(person);
            personCollection.Add(person);

            //定义People集合peopleCollection
            List<People> peopleCollection = new List<People>();
            peopleCollection.Add(people);
            peopleCollection.Add(people);
            peopleCollection.Add(people);

            People peopleNull = null;
            peopleCollection.Add(peopleNull);
            peopleCollection.Add(peopleNull);

            DisplayPersonCollection(personCollection);
            DisplayPeopleCollection(peopleCollection);

            Console.WriteLine();
            Console.WriteLine();
            Console.WriteLine();

            person.Name = "Tom";//更改person的Name
            people.Name = "Tom";//更改people的Name

            Console.WriteLine("person‘s name is:" + person.Name);
            Console.WriteLine("people‘s name is:" + people.Name);

            DisplayPersonCollection(personCollection);
            DisplayPeopleCollection(peopleCollection);

            Console.WriteLine("Press any key to end...");
            Console.ReadKey();
        }
    }
}