打乱集合顺序

MyCollections.shuffle(ref list)

using System;
using System.Collections.Generic;
using System.Text;
 
 
public class MyCollections
{
    public static void shuffle<T>(ref List<T> list)
    {
        Random rand = new Random(Guid.NewGuid().GetHashCode());
        List<T> newList = new List<T>();//儲存結果的集合
        foreach (T item in list)
        {
            newList.Insert(rand.Next(0, newList.Count), item);
        }
        newList.Remove(list[0]);//移除list[0]的值
        newList.Insert(rand.Next(0, newList.Count), list[0]);//再重新隨機插入第一筆
 
        list = newList;
 
    }
}

}