boost::algorithm::ireplace_all_copy — 全局替换算法(不区分大小写)
// In header: <boost/algorithm/string/replace.hpp> template<typename OutputIteratorT, typename Range1T, typename Range2T, typename Range3T> OutputIteratorT ireplace_all_copy(OutputIteratorT Output, const Range1T & Input, const Range2T & Search, const Range3T & Format, const std::locale & Loc = std::locale()); template<typename SequenceT, typename Range1T, typename Range2T> SequenceT ireplace_all_copy(const SequenceT & Input, const Range1T & Search, const Range2T & Format, const std::locale & Loc = std::locale());