c# 打乱数组

public static List<T> GetRandomList<T>(List<T> inputList)
{
    //Copy to a array
    T[] copyArray = new T[inputList.Count];
    inputList.CopyTo(copyArray);

    //Add range
    List<T> copyList = new List<T>();
    copyList.AddRange(copyArray);

    //Set outputList and random
    List<T> outputList = new List<T>();
    Random rd = new Random(DateTime.Now.Millisecond);

    while (copyList.Count > 0)
    {
        //Select an index and item
        int rdIndex = rd.Next(0, copyList.Count - 1);
        T remove = copyList[rdIndex];

        //remove it from copyList and add it to output
        copyList.Remove(remove);
        outputList.Add(remove);
    }
    return outputList;
}


可以这样
List<T> l = new List<T>();
l.Sort(delegate(T a, T b) { return (new Random()).Next(-1, 1); });
也可以用linq
List<T> l = new List<T>();
l = l.Select(a => new { a, newID = Guid.NewGuid() }).OrderBy(b => b.newID).Select(c=>c.a).ToList();