培养面向对象的思想

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Collections.ObjectModel;
using System.Collections.Generic;

namespace Demo
{
    public class Team
    {
        string _name;

        public Team(string name)
        {
            _name = name;
        }

        public string Name { get { return _name; } }
    }

    public class TeamList : List<Team>
    {
        public TeamList()
            : base()
        {
        }
    }

    public class Division
    {
        string _name;
        TeamList _teams;

        public Division(string name)
        {
            _name = name;
            _teams = new TeamList();
        }

        public string Name { get { return _name; } }

        public TeamList Teams { get { return _teams; } }
    }

    public class DivisionList : List<Division>
    {
        public DivisionList()
            : base()
        {
        }
    }

    public class League
    {
        string _name;
        DivisionList _divisions;

        public League(string name)
        {
            _name = name;
            _divisions = new DivisionList();
        }

        public string Name { get { return _name; } }

        public DivisionList Divisions { get { return _divisions; } }
    }

    public class LeagueList : List<League>
    {
        public LeagueList()
            : base()
        {
            League l;
            Division d;

            l = new League("American League");
            Add(l);
            d = new Division("East");
            l.Divisions.Add(d);
            d.Teams.Add(new Team("Baltimore"));
            d.Teams.Add(new Team("Boston"));
            d.Teams.Add(new Team("New York"));
            d.Teams.Add(new Team("Tampa Bay"));
            d.Teams.Add(new Team("Toronto"));
            d = new Division("Central");
            l.Divisions.Add(d);
            d.Teams.Add(new Team("Chicago"));
            d.Teams.Add(new Team("Cleveland"));
            d.Teams.Add(new Team("Detroit"));
            d.Teams.Add(new Team("Kansas City"));
            d.Teams.Add(new Team("Minnesota"));
            d = new Division("West");
            l.Divisions.Add(d);
            d.Teams.Add(new Team("Anaheim"));
            d.Teams.Add(new Team("Oakland"));
            d.Teams.Add(new Team("Seattle"));
            d.Teams.Add(new Team("Texas"));
            l = new League("National League");
            Add(l);
            d = new Division("East");
            l.Divisions.Add(d);
            d.Teams.Add(new Team("Atlanta"));
            d.Teams.Add(new Team("Florida"));
            d.Teams.Add(new Team("Montreal"));
            d.Teams.Add(new Team("New York"));
            d.Teams.Add(new Team("Philadelphia"));
            d = new Division("Central");
            l.Divisions.Add(d);
            d.Teams.Add(new Team("Chicago"));
            d.Teams.Add(new Team("Cincinnati"));
            d.Teams.Add(new Team("Houston"));
            d.Teams.Add(new Team("Milwaukee"));
            d.Teams.Add(new Team("Pittsburgh"));
            d.Teams.Add(new Team("St. Louis"));
            d = new Division("West");
            l.Divisions.Add(d);
            d.Teams.Add(new Team("Arizona"));
            d.Teams.Add(new Team("Colorado"));
            d.Teams.Add(new Team("Los Angeles"));
            d.Teams.Add(new Team("San Diego"));
            d.Teams.Add(new Team("San Francisco"));
        }
    }
}

每一个对象自身包含几个属性来考虑程序怎么写：

声明变量

构造函数

自定义函数