MFC ShowLog(CString strLog)

VOID CShieldDomainDlgDlg::ShowLog(CString strLog)
{
    SYSTEMTIME sysTime; 
    GetLocalTime(&sysTime ); 
    CString strTime;
    strTime.Format("%04d%02d%02d %02d:%02d:%02d:%03d", sysTime.wYear, sysTime.wMonth, sysTime.wDay, sysTime.wHour, sysTime.wMinute, sysTime.wSecond, sysTime.wMilliseconds);

    CString strCurLog;
    GetDlgItemText(IDC_EDIT_MSG, strCurLog);
    if (strCurLog.GetLength() > 10000)
    {
        SetDlgItemText(IDC_EDIT_MSG, _T(""));
    }
    else
    {
        CString strTmp;
        strTmp.Format("[%s] %s\r\n", strTime, strLog);
        strCurLog += strTmp;
        SetDlgItemText(IDC_EDIT_MSG, strCurLog);
    }

}