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$ echo -en '\x10\x11\x12\x13\x14\x15\x16\x17' /tmp/c_rand
，这一点在电影中也有详细论述
Захарова поинтересовалась возможностью посмотреть «Терминатора» в Молдавии14:59
this is a very powerful technique, and it is the main reason why we are so fast on the benchmarks, because by the time we confirm a match, both the lookbehind and lookahead have already been matched - we report matches retroactively once all the context is known, instead of trying to look into the future or backtracking to the past or keeping track of NFA states. this is a very different way of thinking about regex matching, and it took me a while to wrap my head around it, but once you see it in action, i hope you appreciate how elegant and efficient it is.