好问题.看起来您正在寻找一些 AND 逻辑.我相信有人可以想出更好的方法，但我想到了两种方法:

Nice question. It looks like you are looking for some AND logic. I am sure someone can come up with something better, but I thought of two ways:

^(?=(?!.*\btwo\b)|(?!.*\bthree\b)).*$

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或者:

^(?=.*\btwo\b)(?=.*\bthree\b)(*SKIP)(*F)|^.*$

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在这两种情况下，我们都使用正向前瞻来模仿 AND 逻辑，以防止两个词出现在文本中，而不管它们在完整字符串中的位置.如果只存在这些单词中的一个，则字符串将通过.

In both cases we are using positive lookahead to mimic the AND logic to prevent both words being present in a text irrespective of their position in the full string. If just one of those words is present, the string will pass.