https://en.cppreference.com/w/cpp/regex Regular expressions library (since C++11) - cppreference.com Regular expressions library The regular expressions library provides a class that represents regular expressions, which are a kind of mini-language used to perform pattern matching within strings. Almost all operations with regexes can be characterized by en.cppreference.com 공식 문서는 이 바로 위. 문자열에서,..