繁星淼淼
我们可以使用Object.entries、Array.filter和Array.reduce来计算所需日期范围的总分。我们只需要输入正确的日期阈值：let obj = { "expHistory": { "2020-11-26": 84825, "2020-11-25": 87219, "2020-11-24": 44447, "2020-11-23": 14849, "2020-11-22": 57379, "2020-11-21": 32364, "2020-11-20": 42295 }} function getTotal(thresholdDate, expHistory) { let result = Object.entries(expHistory) .filter(([date, points]) => date > thresholdDate) .reduce((total, [date, points]) => total + points, 0); return result;} const thresholdDate = "2020-11-20";console.log(`Total (from ${thresholdDate}):`, getTotal(thresholdDate, obj.expHistory));