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IP Address in Regular Expression

這是擷取有效 IP 的 Regexp ……

\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b

天啊, 這簡直太屌了,
一定要紀錄一下,
我的話大概只會
\b\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}\b
這種爛步數吧 Orz

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