例子：匹配 room_id=13549846
QRegExp使用
QString getData = curlSimple.GetSimple(url); QDBG << getData; QRegExp rx("room_id=[//d]{1,15}"); rx.indexIn(getData); QString roomIDstr = rx.cap().remove("room_id=").remove("/""); QDBG << roomIDstr;std::regex使用
inline QString regexFrom(QString data, QString pnPattern){ std::string strData = data.toStdString(); std::regex pnR(pnPattern.toStdString()); for (std::sregex_iterator it(strData.begin(), strData.end(), pnR), end; it != end; ++it) { return QString::fromStdString(it->str(1)); } return "";}//匹配<span class=/"red/">(.*)</span>QString URLcode = curl.GetSimple(QString::fromStdString(strUrl));QDBG << QString::fromStdString(URLcode);QDBG << regexFrom(URLcode,"<span class=/"red/">(.*)</span>");新聞熱點
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