package com.ruoyi.hywz.utils;

public class test {








    public static void main(String[] args) {
//        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
//        String code = sdf.format(new Date());
//        int i = (int) (Math.random() * 900) + 100;
//        String str = code + System.currentTimeMillis();
//        StringBuffer sbf = new StringBuffer();
//        System.out.println(str.substring(0, 18).toUpperCase(Locale.ROOT));





    }
}
