public static ArrayList Nhap(String Ghi_chu) { ArrayList kq = new ArrayList(); String Chuoi; do { Chuoi = XL_CHUOI.Nhap(Ghi_chu); } while (!Kiem_tra(Chuoi)); String[] M = Chuoi.Split(new char[] { Ky_tu_phan_cach }); for (int i = 0; i < M.Length; i++) { kq.Add(XL_PHAN_SO.Tao(M[i])); } return(kq); }