C#:比较两个IEnumerables的内容 [英] C#: Compare contents of two IEnumerables

问题描述

是否可以使用内置的linq方法查找两个序列是否包含相同的项目，而不考虑顺序?

Is there a built in linq method thing I can use to find out if two sequences contains the same items, not taking the order into account?

例如:

{1, 2, 3} == {2, 1, 3}
{1, 2, 3} != {2, 1, 3, 4}
{1, 2, 3} != {1, 2, 4}

您拥有SequenceEquals，但随后我必须先订购两个序列，对吗?

You have the SequenceEquals, but then I would have to Order both sequences first, wouldn't I?

推荐答案

有很多方法.假设A和B是IEnumerable.

There are quite a few ways. Assume A and B is IEnumerable.

!A.Except(B).Any() && !B.Except(A).Any()
A.Count() == B.Count() && A.Intersect(B).Count() == B.Count()
etc

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