时间段分割的算法，着急请教大家。

Question

时间段分割的算法

Answer 1

DateTime允许做加法的。另外C#里有个TimeSpan是用来表示时间间隔的，可以用TimeSpan表示你的时间间隔，然后往DateTime上加就好了

Answer 2

public Form1()
        {
            InitializeComponent();            this.richTextBox1.Dock = DockStyle.Fill;            DateTime start = DateTime.Parse("2014-09-12 02:08:20");
            DateTime stop = DateTime.Parse("2014-09-13 12:22:20");            TimeSpan span = new TimeSpan(0, 0, 10, 0);            Int64 count = start.Ticks / span.Ticks;
            DateTime first = new DateTime((count + 1) * span.Ticks);
            count = stop.Ticks / span.Ticks;
            DateTime last = new DateTime((count + 1) * span.Ticks);            List<DateTime> list = new List<DateTime>();
            list.Add(start);
            for (DateTime temp = first; temp <= last; temp += span) {
                list.Add(temp);
            }
            list.Add(stop);            Int32 warp = 1;
            foreach (DateTime time in list) {
                richTextBox1.AppendText(time.ToString("yyyy-MM-dd hh:mm:ss"));
                if ((warp % 8) != 0)
                    richTextBox1.AppendText("\t");
                else
                    richTextBox1.AppendText("\n");
                warp++;
            }
        }
运行效果

Answer 3

 static void Main(string[] args)
        {
            DateTime begin = DateTime.ParseExact("2014-09-12  02:08:20", "yyyy-MM-dd  HH:mm:ss", null);
            DateTime end = DateTime.ParseExact("2014-09-13  12:22:20", "yyyy-MM-dd  HH:mm:ss", null);            List<DateTime> timelist = new List<DateTime>();
            while (begin < end)
            {
                int hour = begin.Hour;
                while (hour == begin.Hour && begin < end)
                {
                    if (begin.Minute % 10 == 0 && (begin.Second == 1 || begin.Second == 0))
                    {
                        if (begin.Minute == 30 && begin.Second == 1)
                        {
                            begin = begin.AddMinutes(29).AddSeconds(59);
                            break;
                        }
                        timelist.Add(begin);
                        if (begin.Second == 1)
                            begin = begin.AddMinutes(9).AddSeconds(59);
                        else
                            begin = begin.AddSeconds(1);
                    }
                    else
                    {
                        timelist.Add(begin);
                        int tempmin = 10 - begin.Minute % 10;
                        int tempsecond = begin.Second;
                        begin = begin.AddMinutes(tempmin).AddSeconds(tempsecond * -1);
                    }
                }
            }
            if (begin != end)
                timelist.Add(end);            timelist.ForEach(x => Console.WriteLine(x));
            Console.ReadKey();
        }

Answer 4

        public static void GetTimeSpan()
        {
            DateTime starttime = Convert.ToDateTime("2014-09-12  02:08:20");
            DateTime endtime = Convert.ToDateTime("2014-09-13  12:22:20");            List<DateTime> list = new List<DateTime>();
            for (DateTime i = starttime; i < endtime; i = i.AddMinutes(1))
            {
                if (i.Minute % 10 == 0)
                {
                    if (list.Count == 0 && i != starttime)
                    {
                        list.Add(starttime);
                    }
                    list.Add(i);
                }
            }
            if (list[list.Count - 1] != endtime)
            {
                list.Add(endtime);
            }            foreach (DateTime time in list)
            {
                Console.WriteLine(time.ToString("yyyy-MM-dd hh:mm:ss"));
            }        }

Answer 5

    public static void GetTimeSpan()
        {
            DateTime starttime = Convert.ToDateTime("2014-09-12  02:08:20");
            DateTime endtime = Convert.ToDateTime("2014-09-13  12:22:20");
 
            List<DateTime> list = new List<DateTime>();
            for (DateTime i = starttime; i <= endtime; i = i.AddMinutes(1))
            {
                if (i.Minute % 10 == 0)
                {
                    if (list.Count == 0 && i != starttime)
                    {
                        list.Add(starttime);
                    }
                    list.Add(i);
                }
            }
            if (list[list.Count - 1] != endtime)
            {
                list.Add(endtime);
            }
 
            foreach (DateTime time in list)
            {
                Console.WriteLine(time.ToString("yyyy-MM-dd hh:mm:ss"));
            }
 
        }

Answer 6

看完6楼的代码，我发现我少了一部分，下面是重新修改的
public Form1()
        {
            InitializeComponent();            this.richTextBox1.Dock = DockStyle.Fill;            DateTime start = DateTime.Parse("2014-09-12 02:08:20");
            DateTime stop = DateTime.Parse("2014-09-13 12:22:20");            TimeSpan span = new TimeSpan(0, 0, 10, 0);            Int64 count = start.Ticks / span.Ticks;
            DateTime first = new DateTime((count + 1) * span.Ticks);
            count = stop.Ticks / span.Ticks;
            DateTime last = new DateTime((count + 1) * span.Ticks);            List<DateTime> list = new List<DateTime>();
            list.Add(start);
            for (DateTime temp = first; temp <= last; temp += span) {
                list.Add(temp);
                list.Add(temp.AddSeconds(1));
            }
            list.Add(stop);            Int32 warp = 1;
            foreach (DateTime time in list) {
                richTextBox1.AppendText(time.ToString("yyyy-MM-dd hh:mm:ss"));
                if ((warp % 2) != 0)
                    richTextBox1.AppendText("\t");
                else
                    richTextBox1.AppendText("\n");
                warp++;
            }
        }效果差不多，只是计算方式上有点区别，看你需要了