/// <summary>/// 洗牌算法打乱数字排序/// </summary>/// <param name="arr"></param>/// <returns></returns>public static Texture[] FisherYatesshuffle(Texture[] arr){// 打乱数组元素的索引System.Random rand = new System.Random();for (int i = arr.Length - 1; i > 0; i--){int j = rand.Next(0, i + 1);Texture temp = arr[i];arr[i] = arr[j];arr[j] = temp;}// 输出打乱后的数组return arr;}