java取整

代碼 double i = 1.456; System.out.println("舍掉小數取整:Math.floor(1.456)=" + (int) Math.floor(i)); System.out.println("四捨五入取整:(1.456)=" + new BigDecimal(i).setScale(0, BigDecimal.ROUND_HALF_UP)); System.o

>>阅读原文<<