使用NodaTime计算一个包容性天期 [英] use NodaTime to calculate an inclusive days period

问题描述

因此，举例来说，如果我有以下代码：

  VAR nodaStart =新LOCALDATE（2012，5，1）; 
变种nodaEnd =新LOCALDATE（2012,5,2）; 
 VAR daysBetween = Period.Between（nodaStart，nodaEnd，PeriodUnits.Day）; 
  

然后 daysBetween.Days == 1

不过，我计算的需求范围，计为2天。也就是说，它需要具有包容性的开始和结束日期。

实际的方法可以采取，并开始和结束日期（即不超过一年的除外）和需求来计算天数。如果有超过31天，那么其余的都返回了一些整个星期。

我有逻辑，工作正常，但因为计数是专属我算是一天。

我想我可以做 startDate.addDays（-1）创建之前 nodaStart ，但我不知道是否有有野田回报周期更优雅/美丽的方式。

感谢

---

更新：
我已经的为周期类的源代码和在 + 运算符重载，所以我可以添加

  daysBetween + =周期.FromDays（1）; 
  

解决方案

（对不起，这是我花这么长时间来回答这个问题 - 我从来没有见过吧）

的任何的的：

• 添加一天结束计算之前（这是最符合逻辑的做法，IMO - 罗杰说，你要在第二天开始，有效的）


• 减去开始新一天计算


• 前加入1至你走出月底的天数

应该罚款。我不认为野田佳彦时间会改变，使这个再简单不过。 之间是一种周围的单位模糊的减法运算符的版本 - 你不会找到很多减法运算，其中2 - 1是2

So for example if I have the following code:

var nodaStart = new LocalDate(2012, 5, 1);
var nodaEnd = new LocalDate(2012,5,2);
var daysBetween = Period.Between(nodaStart, nodaEnd,PeriodUnits.Day);

Then daysBetween.Days == 1

However, the range I calculate needs to count that as 2 days. i.e. it needs to be inclusive of the start and end date.

The actual method can take and start and end date (that are no more than a year apart) and needs to calculate the number of days. If there are more than 31 days then the remainder are returned as a number of whole weeks.

I have that logic working fine but because the count is exclusive I'm one day out.

I guess I can just do startDate.addDays(-1) before I create nodaStart from it but I wonder if there's a more elegant / pretty way to have noda return the Period.

Thanks

---

UPDATE: I've had a read of the source code for the Period class and the + operator is overloaded so I can add

daysBetween += Period.FromDays(1);

解决方案

(Sorry it's taken me so long to answer this - I hadn't seen it before.)

Any of:

• Adding a day to the end before calculating (this is the most logical approach, IMO - as Roger says, you want the start of the next day, effectively)
• Subtracting a day from the start before calculating
• Adding 1 to the number of days you get out of the end

should be fine. I don't think Noda Time will change to make this any simpler. Between is a sort of "fuzzy around units" version of a subtraction operator - and you won't find many subtraction operators where 2 - 1 is 2.

这篇关于使用NodaTime计算一个包容性天期的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！