package com.xzx.gc.common.utils;
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import lombok.experimental.UtilityClass;
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import java.math.BigDecimal;
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@UtilityClass
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public class MathUtils {
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/**
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* double减法 保留2位小数
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* @param m1
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* @param m2
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* @return
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*/
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public double subDouble(double m1, double m2) {
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BigDecimal p1 = new BigDecimal(Double.toString(m1));
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BigDecimal p2 = new BigDecimal(Double.toString(m2));
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BigDecimal p3 =p1.subtract(p2);
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return p3.setScale(2, BigDecimal.ROUND_DOWN).doubleValue();
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}
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}
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