public QuanLyLopHoc TimTheoMaSo(string ma) { QuanLyLopHoc kq = new QuanLyLopHoc(); for (int i = 0; i < siSo; i++) { if (danhsach[i].XuatMaSoSV() == ma) { kq.Them(danhsach[i]); } } return(kq); }
public QuanLyLopHoc TimTheoHoTen(string ho) { QuanLyLopHoc kq = new QuanLyLopHoc(); for (int i = 0; i < siSo; i++) { if (danhsach[i].XuatHoLot() == ho) { kq.Them(danhsach[i]); } } return(kq); }