摘要: java中整数前进行'0'填充: DecimalFormat df=new DecimalFormat("0000"); Integer last = categories.size() + 1; System.out.println("流水号:"+df.format(last)); code = 阅读全文
posted @ 2022-08-11 14:27 changlinlo 阅读(635) 评论(0) 推荐(0) 编辑