... Vui long chon man trong khung combobox !"); switch(atoi(m_chonsoman)) { case 4 : if(m_tenpasswd.Compare("son")==0) { pch.c_man = 4; pch.c_diem = 0; pch.n_tocdo = ... else if(MessageBox("Password khong dung !","Thong bao",MB_ICONHAND|MB_APPLMODAL)==IDOK); break; case 8 : if(m_tenpasswd.Compare("vietnam")==0) { pch.c_man ... = 0; pch.n_tocdo = (2000-400); pch.status =0; pch.reset(); } else if(MessageBox("Password khong dung !","Thong bao",MB_ICONHAND|MB_APPLMODAL)==IDOK); break;...