CStdioFile CString 读写中文

     TCHAR* old_locale = _tcsdup( _tsetlocale(LC_CTYPE,NULL) );
     _tsetlocale( LC_CTYPE, _T("chs"));

     CStdioFile oStdFileIS;
     try
     {
         if (!oStdFileIS.Open(TEXT("成语字典byWLS勿用于商业用途.txt"),CFile::modeRead))
         {
             //失败
         }
     }
     catch (CFileException* e)
     {
         //异常

         delete e;
     }

     CString strIS;
     while(oStdFileIS.ReadString(strIS))
     {
         //处理
     }

     oStdFileIS.Close();

     _tsetlocale( LC_CTYPE, old_locale );
     free( old_locale );