#include <iostream>#include <sstream>#include <vector>#include <string>vector<wstring> GetStr (const wstring &s){    locale china ("chs");    wistringstream line (s);    wstring word;    vector<wstring> words;    while (line >> word) {        words.push_back (word);    }    return move (words);}vector<wstring> TurnStrVec (const vector<wstring> &vec){    auto vec_mid_it =         vec.cbegin() + (vec.size () / 2);    vector<wstring> tmp_vec (vec_mid_it                            , vec.cend());    tmp_vec.insert (tmp_vec.cend()                    , vec.cbegin ()                    , vec_mid_it);    return move (tmp_vec);}wstring VecToStr (const vector<wstring> &vec){    wstring tmp_s;    for (const auto &elem : vec) {        tmp_s.append (elem);        //tmp_s.append (L" ");    }    return move (tmp_s);}void TurnStr (wstring &s){    s = VecToStr (TurnStrVec(GetStr(s)));}int main (){    ios::sync_with_stdio(flase);    locale china ("chs");    wcout.imbue (china);    wstring s (L"你 好 啊， 朋 友！");    TurnStr (s);    wcout << s << endl;    return 0;}