string转wstring，wstring转string

std::string ws2s(const std::wstring& ws){    std::string curLocale = setlocale(LC_ALL, NULL);        // curLocale = "C";    setlocale(LC_ALL, "chs");    const wchar_t* _Source = ws.c_str();    size_t _Dsize = 2 * ws.size() + 1;    char *_Dest = new char[_Dsize];    memset(_Dest,0,_Dsize);    wcstombs(_Dest,_Source,_Dsize);    std::string result = _Dest;    delete []_Dest;    setlocale(LC_ALL, curLocale.c_str());    return result;}std::wstring s2ws(const std::string& s){setlocale(LC_ALL, "chs"); const char* _Source = s.c_str();size_t _Dsize = s.size() + 1;wchar_t *_Dest = new wchar_t[_Dsize];wmemset(_Dest, 0, _Dsize);mbstowcs(_Dest,_Source,_Dsize);std::wstring result = _Dest;delete []_Dest;setlocale(LC_ALL, "C");return result;}