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這是我在那裏我試圖以檢索3個捕獲組提取使用字符串捕捉組(使用re.match)
res = re.match("^(?![()]*)([()])(.*)$", input)
正則表達式,這是我預期的結果
input = "This is a()demo)"
I would need 3 capture groups
res.group(1) -> "This is a "
res.group(2) -> "("
res.group(3) -> ")demo)"
input = "Another demo)(continues...()"
res.group(1) -> "Another demo "
res.group(2) -> ")"
res.group(3) -> "(continues...()"
input = "(last demo() and finally"
res.group(1) -> ""
res.group(2) -> "("
res.group(3) -> "last demo() and finally"
但是我寫的正則表達式並不匹配上面給出的3個輸入。我在這裏做錯了什麼?
@anubhava感謝指點出來。更正 – Raj