public static void main(String[] args) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-mm-dd");
SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd");
String lotNoNowStr = sdf.format(new Date());
String packNowStr = sdf2.format(new Date());
System.out.println("批号:" + lotNoNowStr);
System.out.println("包号:" + packNowStr);
}
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-mm-dd");
mm是分钟,mm是分钟 困扰我好久