计算多个日期/时间范围之间的交叉点位置和数量?

var timePoints = (from r in ranges select r.Start)
    .Concat(from r in ranges select r.End)
    .Distinct().OrderBy(dt => dt).ToArray();

var intersections = from i in Enumerable.Range(0, timePoints.Length - 1)
                    let start = timePoints[i]
                    let end = timePoints[i + 1]
                    from range in ranges
                    where range.Start <= start && range.End >= end
                    select new { Range = range, Start = start, End = end };

编辑:

var timePoints = (from r in ranges select r.Start)
    .Concat(from r in ranges select r.End)
    .Distinct().OrderBy(dt => dt).ToArray();

var intersectionGroups = from i in Enumerable.Range(0, timePoints.Length - 1)
                         let start = timePoints[i]
                         let end = timePoints[i + 1]
                         select new
                         {
                             Start = start,
                             End = end,
                             Ranges =
                                 from range in ranges
                                 where range.Start <= start && range.End >= end
                                 select range
                         };

var intersections = from intGroup in intersectionGroups
                    let count = intGroup.Ranges.Count()
                    from range in intGroup.Ranges
                    select new
                    {
                        Range = range,
                        Start = intGroup.Start,
                        End = intGroup.End,
                        Count = count
                    };

我不知道你想用这个结果做什么,但用它可能更好 intersectionGroups 而不是 intersections .