C# 扑克洗牌

一副扑克有52张牌，那么使用数组存储这52张牌，然后打乱这些牌。

using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Poker
{
    class Program
    {
        static void Main(string[] args)
        {
            ArrayList al = new ArrayList();
            for (int i = 1; i < 53; i++)
            {
                al.Add(i);
            }
            al = PokerSeqRandom(al);
            foreach (var item in al)
            {
                Console.Write(item+",");
            }
        }

        static ArrayList PokerSeqRandom(ArrayList al)
        {
            Random rd = new Random();
            ArrayList result = new ArrayList();
            while(al.Count>0)
            {
                int index = rd.Next(0, al.Count);
                result.Add((int)al[index]);
                al.RemoveAt(index);
            }
            return result;
        }
    }
}