按照数字的连续段分组

用于存储分组的类

 public class info
        {
            public int group { get; set; }
            public List<int> list { get; set; }

        }

程序主代码

 [STAThread]
        static void Main()
        {
            #region 分组

            #endregion
            int[] arr = new int[] { 0, 1, 2, 5, 6, 8, 9 };
            List<info> infos = new List<info>();
            var group = 0;
            var number = arr[0];
            infos.Add(new info() { group = group, list = new List<int>() { number } });
            for (int i = 1; i < arr.Length; i++)
            {
                if (arr[i] == number + 1)
                {
                    var res = infos.Where(o => o.group.Equals(group)).FirstOrDefault();
                    res.list.Add(arr[i]);
                    number = arr[i];
                }
                else
                {
                    group++;
                    number = arr[i];
                    infos.Add(new info() { group = group, list = new List<int>() { number } });
                }
            }
            Console.WriteLine(Newtonsoft.Json.JsonConvert.SerializeObject(infos));
}