If I have this string:
"The quick brown fox jumped over the lazy dog. What a nice brown fox that is."
What regex would I use to match the text 'brown fox' but not where the following word is 'that', ie (matches in italic):
"The quick brown fox jumped over the lazy dog. What a nice brown fox that is."
你需要一个零宽度的负前瞻断言 ,即
brown fox(?! that)
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