Java版 微信红包算法，java信红包算法, private dou

Java版 微信红包算法，java信红包算法, private dou

 private double[] divide(double totalMoney,int num,double minMoney){        double[] each = new double[num];        for(int i=0;i<num-1;i++){            //计算最大安全值，保证不会超出  。如果安全值越大，价格波动越大  .建议是平均值            double maxSafeMoney = (totalMoney - (num-1-i)*minMoney) / (num-1-i);            //随机算出最小值，保证不低于最小值            each[i] = Math.random()*(maxSafeMoney-minMoney)+minMoney;            //计算当前剩下的钱            totalMoney = totalMoney - each[i];        }        each[num-1] = totalMoney;        return each;    }    @Test    public void test3(){        double[] rs = divide(200,10,0.01);        for(double each:rs){            System.out.format("%.2f\n",each);        }    }

结果：java16.7021.3718.8912.1311.3523.2124.327.3914.1050.57