CString GetUStr(const string & str){    std::string showname = str;//\u6211\u7231\u5317\u4eac\u5929\u5b89\u95e8    int len=strlen(showname.c_str())+1;    char outch[MAX_PATH];    WCHAR * wChar=new WCHAR[len];    wmemset(wChar,0,len);    MultiByteToWideChar(CP_UTF8, 0, showname.c_str(), len, wChar, len);    CString strRet = wChar;//转化结果 我爱北京天安门    delete [] wChar;    return strRet;}