求帮忙看一下这段代码是什么意思

求帮忙看一下这段代码是什么意思void CEx_FileSimilarityDlg::OnTimer(UINT nIDEvent) {\x09// TODO: Add your message handler code here and/or call default\x09int m_nDayOfWeek;\x09CString str;\x09m_Time = CTime::GetCurrentTime();\x09m_strTime = m_Time.Format("\r\n%Y-%m-%d\r\n%H:%M:%S\r\n"); m_nDayOfWeek = m_Time.GetDayOfWeek(); str.Format(" 星期%d",m_nDayOfWeek-1); m_strTime = m_strTime + str;\x09\x09if(nIDEvent == 1)\x09{\x09\x09GetDlgItem(IDC_EDIT3)->SetWindowText(m_strTime);\x09}\x09CDialog::OnTimer(nIDEvent);}