//规格代码的生成

    private String getCode (String code) {

        char[] chars=code.toCharArray();

        if (chars[2]==57){

            chars[2]+=8;

        }else if (chars[2]<90){

            chars[2]++;

        } else {

            if (chars[1]==57){

                chars[1]+=8;

                chars[2]=48;

            }else if (chars[1]<90) {

                chars[1]++;

                chars[2] = 48;

            }else {

                if (chars[0]==57){

                    chars[0]+=8;

                    chars[1]=48;

                    chars[2]=48;

                }else if (chars[0]<90){

                    chars[0]++;

                    chars[1]=48;

                    chars[2]=48;

                }else {

                    System.out.print("编码用完了");

                }

            }

        }

        StringBuffer sbu = new StringBuffer();

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

            sbu.append(chars[i]);

        }

        return sbu.toString();

    }