常用BigDecimal比较
BigDecimal a = new BigDecimal(“10.00”);BigDecimal b = new BigDecimal(“10”);//前提为a、b均不能为nullif(a.compareTo(b) == -1){System.out.println(“a小于b”);}if(a.compareTo(b) == 0){System.out.println(“a等于b”);}if(a.compareTo(b) == 1){System.out.println(“a大于b”)