패턴 19 - \W (역슬래시 대문자) : (알파벳, 숫자, _) 제외한 모든 문자 Source AS _34:AS11.23 @#$ %12^* Case 1 - (알파벳, 숫자, _)를 제외한 모든 문자 (= Case 3) Regular Expression: \W First match: AS _34:AS11.23 @#$ %12^* All matches: AS _34:AS11.23 @#$ %12^* Case 2 - (알파벳, 숫자, _)중 하나인 모든 문자 Regular Expression: \w First match: AS _34:AS11.23 @#$ %12^* All matches: AS _34:AS11.23 @#$ %12^* Case 3 - (알파벳, 숫자, _)를 제외한 모든 문자 (= Case 1) Regular Expression: [^A-z0-9_] First match: AS _34:AS11.23 @#$ %12^* All matches: AS _34:AS11.23 @#$ %12^*
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