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public static boolean IsNullOrEmpty(String value) { return (value == null || value.length() == 0);}public static boolean IsNullOrWhiteSpace(String val 阅读全文
摘要:
除法运算的函数定义如下 BigDecimal.divide(BigDecimal divisor, int scale, RoundingMode roundingMode) ; scale为小数位数; Java中BigDecimal取整方法,scale为0 roundingMode为小数模式; R 阅读全文