我正在寻找一种方法来在两个javascript日期对象之间进行适当的减法并获得日期增量。这是我的方法，但它无法将今天的日期作为输入:functiongetDayDelta(incomingYear,incomingMonth,incomingDay){varincomingDate=newDate(incomingYear,incomingMonth,incomingDay);vartoday=newDate();vardelta=incomingDate-today;varresultDate=newDate(delta);returnresultDate.getDate();}//