C# Lambda 表达式未返回预期结果

Question

我正在使用 lamda 表达式来过滤查询。

基本上，我有由段组成的行，这些段被标记为删除、插入或空。

我想要返回的是已标记为已删除但其任何兄弟未标记为已删除的段。例如，

Line: "Soylent Green is people!" Broken into 2 segments... 
Segment 1: "Soylent Green " (marked as deleted)
Segment 2: "is people!" (not marked as deleted)

应该返回 Segment 1。但是下一个例子，

Line: "Open the pod bay doors Hal!" Broken into 3 segments...
Segment 1: "Open the " (marked as deleted)
Segment 2: "pod bay " (marked as deleted)
Segment 3: "doors Hal!" (marked as deleted)

不应返回任何段。见下面的代码:

return seg => seg.ModType == Deleted &&
              seg.Line.Segments.Any(segs => segs.ID != seg.ID && 
              segs.ModType != Deleted);

谢谢，我感谢任何关于为什么这不起作用的帮助或建议。

Answer 1

我认为它会是这样的:

return s =>  from segment in s.Line.Segments 
             where segment.ModType == Deleted 
                && segment.Line.Segments.Any(segs => segs.ModType != Deleted)
             select segment