String str1 = "11@22#33,44,55,#bb#cc,dd,ee,#@DDD@TTT#999,#@";

        String[] CX = str1.split("@");

        for (int i = 0; i < CX.length; i++) {

            if(i % 2 == 0){  //表示的车系

                System.out.println(" 车系 " + CX[i]);

                String str2 = CX[i+1]; //下一级

                String[] PL = str2.split("#");

                for (int j = 0; j < PL.length; j++) {

                    if(j % 2 == 0){

                        System.out.println(" --排量 " + PL[j]);

                        String str3 = PL[j+1];

                        String[] NF = str3.split(",");

                        for (int k = 0; k < NF.length; k++) {

                            System.out.println(" ----生产年份 " + NF[k]);

                        }

                    }

                }

            }

        }