C#发牌

之前不太喜欢C#，无意中发现linq,用来实现排序是如此简单，所以又用C#写了遍发牌程序
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
    class Program
    {
       
        static void Main(string[] args)
        {  
            //IEnumerable<string> expr = from s in cards
            //                           where s.Length == 5
            //                           orderby s
            //                           select s.ToUpper();
            //foreach (string item in expr)
            //Console.WriteLine(item);
            //Console.ReadKey();
            Program o = new Program();
            List<string> cards = o.newCards();
            o.exchangeCards(30, cards);
            List<List<string>> all = o.dispatchCards(6, ca