如何解决从单个动态值实现总单位值
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嗨，大家好，这是购物车应用的json 列表的每个对象中都有折扣开始和折扣结束 所以我知道如何根据各个产品的时间进行价格更改， 但是当我将价格总计并显示在ui中时，逻辑看起来有些混乱 例如10 + 5（折价）+ 10 + 5（折价）+ 5（折价） 总价格35 现在，假设5分钟后，用户仍然在其中一种产品的屏幕上享受折扣 看起来像这样 10 + 10 + 10 + 5（折价）+ 5（折价）
总价格40 ..
所以可以单独支付折扣，但是，您可以看到我如何根据每个独特产品的折扣开始时间和折扣结束时间来计算总价格
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