检查元素是否在序列中 [英] Check if an element is within a sequence

问题描述

如何检查元素是否包含在序列中?我期望有一些Seq.contains，但是我找不到它.谢谢

how to check if an element is contained within a sequence? I expected some Seq.contains, but i could not find it. Thanks

编辑: 或者，对于更简单的任务，如何在两个序列之间进行区分?例如，获取列表中不属于另一个(或不属于)的所有元素?

EDIT: Or, for an easier task, how to make the diff between two sequences? Like, getting all the elements within a list that doesn not belong to another (or that do)?

推荐答案

简单一点:

let contains x = Seq.exists ((=) x)

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