没有，有我不害怕。 F＃的确实的有支持这一产量，但在C＃中没有相应的 - 你必须使用循环，基本上是这样。对不起......我觉得你的痛苦。我在我Edulinq博客文章之一，一>，它会作出简单的事情

No, there isn't I'm afraid. F# does support this with yield!, but there's no equivalent in C# - you have to use the loop, basically. Sorry... I feel your pain. I mentioned it in one of my Edulinq blog posts, where it would have made things simpler.

请注意，使用收益回报递归可能是昂贵的 - 看到的韦斯·戴尔对迭代器了解更多信息（以及提后四年前正在审议的产量的foreach ...）

Note that using yield return recursively can be expensive - see Wes Dyer's post on iterators for more information (and mentioning a "yield foreach" which was under consideration four years ago...)