C#生成不重复随机数列表实例

/// <summary>
        /// 生成不重复随机数列表实例
        /// </summary>
        /// <param name="count">不重复数数量</param>
        /// <returns>不重复数列表</returns>
        private static list<int> getrandomlist(int count)
        {
            list<int> list = new list<int>();
            int num = 0;
            random rnd = new random();
            for (int i = 0; i < count; i++)
            {
                do
                {
                    num = rnd.next(010000, 1000000);
                } while (list.contains(num));//               
                list.add(num);
            }
            return list;
        }