C#从列表中取元素的某个字段组成新的列表

using System;
using System.Collections.Generic;
using System.Linq;

namespace CSharpDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            List<TestClass> MyList = new List<TestClass>();
            MyList.Add(new TestClass("AAA"));
            MyList.Add(new TestClass("BBB"));
            MyList.Add(new TestClass("CCC"));

            var items = from n in MyList select n.Name;

            foreach (var item in items)
            {
                Console.WriteLine(item);
            }

            var value = string.Join(",", items);
            Console.WriteLine(value);

            Console.Write("请按任意键继续. . .");
            Console.ReadKey(true);
        }

        public class TestClass
        {
            public string Name;

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