?? lex_re1.py
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# lex_token.py## Bad regular expression in a stringimport lextokens = [ "PLUS", "MINUS", "NUMBER", ]t_PLUS = r'\+'t_MINUS = r'-'t_NUMBER = r'(\d+'def t_error(t): passimport syssys.tracebacklimit = 0lex.lex()?? 快捷鍵說明
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