c++ 中文字符正则使用

#include 
#include 
#include 
#include 
#include 
#include 
#include 

std::wstring stringTowstring(const std::string& strInput){
    if (strInput.empty())
    {
        return L"";
    }
    std::string strLocale = setlocale(LC_ALL, "");
    const char* pSrc = strInput.c_str();
    unsigned int iDestsize = mbstowcs(NULL, pSrc, 0) + 1;
    wchar_t* szDest = new wchar_t[iDestsize];
    wmemset(szDest, 0, iDestsize);
    mbstowcs(szDest, pSrc, iDestsize);
    std::wstring wstrResult = szDest;
    delete[]szDest;
    setlocale(LC_ALL, strLocale.c_str());
    return wstrResult;
}

int main() {
    std::wregex reg_blue(L"^[京津沪渝豫云江黑湘院鲁新苏浙鄂桂晋蒙陕吉国贵粤青藏宁琼]{1}[ABCDEFGHJKLMNPQRSTUVWXY]{1}[ABCDEFGHJKLNMxPQRSTUVWXYZ 0-9]{4}[ABCDEFGHJKLNMxPQRSTUVWXYZ 0-9]{1}$");
    std::wstring wstr = stringTowstring("鲁B87Q1B");
    std::wsmatch match;
    bool ret = std::regex_match(wstr, match, reg_blue);
    if (ret){
        std::cout <<"Yes blue" << std::endl;
    }else{
        std::cout <<"No blue" << std::endl;
    }

    return 0;
}