using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace Lazy

{

    class Program

    {

        static void Main(string[] args)

        {

            School aa = new School();

            List<student> ass=aa.lazy_students.Value;

            foreach (var m in ass)

            {

                Console.WriteLine("姓名：{0} 年龄:{1},时间:{2}",m.name,m.age,m.date);

            }

            Console.ReadKey();

        }

    }

    public class School

    {

        public Lazy<List<student>> lazy_students { get; set; }

        public School()

        {

            lazy_students = new Lazy<List<student>>(() =>this.SetLazy());

        }

        private List<student> SetLazy()

        {

            List<student> ss = new List<student>{

            new  student{name="sx",age=18,date=DateTime.Now},

            new student{name="sb",age=19,date=DateTime.Now}

            };

            return ss;

        }

    }

    public class student

    {

        public string name { get; set; }

        public int age { get; set; }

        public DateTime date { get; set; }

    }

}