CInternetSession |CHttpFile 刷新问题

    CInternetSession session(_T("HttpClient"));
    TCHAR * url = _T("");
    CHttpFile* pfile = (CHttpFile*)session.OpenURL(url,1,INTERNET_FLAG_TRANSFER_ASCII||INTERNET_FLAG_RELOAD);
    DWORD dwStatusCode;
    pfile->QueryInfoStatusCode(dwStatusCode);
    CString content = _T("https://www.baidu.com/");
    if (dwStatusCode == HTTP_STATUS_OK)
    {

        CString data;
        while(pfile->ReadString(data)){
            content+=data;
        }
        char  *pch;
        pch = new char[content.GetLength()*sizeof(TCHAR)+1];
        memcpy(pch,content,content.GetLength()*sizeof(TCHAR));
        content = UTF8ToUnicode(pch);
        m_data.Clear();

        Filter_data(content);

    }
    pfile->Close();
    delete pfile;
    session.Close();
    content.Empty();

再次点击后,数据并不刷新,请问下 ,需要怎么刷新,(新手求教)

已经解决 ,粗心大意 " || "