将多个sql话语给合并成一个sql

int CSQLMake::MergeSql(std::string &strSql, std::vector<std::string> &vctSql){    int iRet = 0;    boost::regex regEx("@@([\\d]+)");    boost::match_flag_type flags = boost::match_default;    std::vector<std::string>::iterator itr;    std::string strTemp;    std::string::const_iterator start, end;    int iCount = 0;    for (itr=vctSql.begin(); itr!=vctSql.end(); itr++)    {        boost::match_results<std::string::const_iterator> what;        strTemp = *itr;        while (boost::regex_search(strTemp, what, regEx, flags))        {            std::string str(what[1].first, what[1].second);            int iIndex = ACE_OS::atoi(str.c_str());            std::string::size_type stPos = strTemp.find(what[0]);            std::string strLeft = strTemp.substr(0, stPos);            std::string strRight = strTemp.substr(stPos + (what[0].second - what[0].first));            strTemp = strLeft + vctSql[iIndex] + strRight;        }        vctSql[iCount] = strTemp;        iCount ++;    }    strSql = strTemp;    return iRet;}