计算除法，出错。Non-terminating decimal expansion； no exact representable decimal result.
2020-07-13 04:25
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java.lang.ArithmeticException: Non-terminating decimal expansion; no exact representable decimal result.
原因：
计算除法，出错。
解决方法：
把BigDecimal的
.divide(new BigDecimal(orderNum + “”))
改成
.divide(new BigDecimal(orderNum + “”), 4, BigDecimal.ROUND_UP)
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