等下帮你写
public static void main(String[] args) {
long id=1001;
StringBuffer sb = new StringBuffer();
sb.append(LongToFixLengthString(id));
sb.append(" ");
SimpleDateFormat df = new SimpleDateFormat("yyMMddHHmm");
sb.append(df.format(new Date()));
sb.append(" ");
Random random = new Random();
sb.append(random.nextInt(100)+10);
System.out.println(sb.toString());
}
public static String LongToFixLengthString(long id) {
NumberFormat formatter = new DecimalFormat("000000");
return formatter.format(id);
}
追问急用啊 速度 谢了
追答改成 sb.append(random.nextInt(90)+10);