.Net 乱序方法

        /// <summary>
        /// 把收集回来的列表打乱顺序之后返回
        /// </summary>
        /// <returns></returns>
        public IList<string> RandomSort(IList<string> ListStr)
        {
            Random rand = new Random();
            int iTarget = 0;
            string str = "";
            for (int i = 0; i < ListStr.Count; i++)
            {
                iTarget = rand.Next(0, ListStr.Count);
                str = ListStr[i];
                ListStr[i] = ListStr[iTarget];
                ListStr[iTarget] = str;
            }
            return ListStr;
        }