问题描述
我正在尝试编写一个excel公式，可以将其拖动到一行单元格上，以给出两个指定日期之间每个月的天数.例如:
I am trying to write an excel formula which can be dragged across a row of cells to give the number of days in each month between two specified dates. E.g:
A B C D E F
1 | START DATE | END DATE | Jan | Feb | Mar | Apr |...
---------------------------------------------------------
2 | 10/02/17 | 15/03/17 | 0 | 19 | 15 | 0 |...
更为复杂的是，结束日期可能留为空白，指示结束日期应视为今天.我可以在从C2到A&列的单元格中添加一个公式. B必须留给用户输入.
An added complication is that the end date may be left blank indicating that the end date should be treated as today. I can put a formula in the cells starting from C2 but columns A & B must be left for user entry.
我使用许多嵌套的if语句取得了一些进展，但是如果结束日期为空，则很难处理它.
I made some progress using lots of nested if statements but am having real trouble getting it to handle if the end date is blank.
任何人都可以帮忙吗?
*编辑
我避免显示我编写的公式，因为我怕它有点混乱，但根据要求，我现在在下面显示(来自C2的公式)
I refrained from showing the formula I had written so far as I'm afraid it's a bit messy but as it has been requested, I have now shown below (this formula from C2)
=IF(AND($A2<C$1,$B2<D$1),DAY(A2),IF($A2>=D$1,0,IF(AND($A2<C$1,$B2=""),IF(TODAY()<C$1,0,IF(TODAY()>C$1,IF(TODAY()<D$1,DAY(TODAY()),D$1-C$1),IF(TODAY()<D$1,INT(TODAY()-$A2),$D1-$C1))),IF(AND($A2>=C$1,$B2=""),IF(TODAY()<D$1,INT(TODAY()-$A2+1),D$1-$A2),IF(AND($A2>=C$1,$B2<D$1),$B2-$A2+1,IF(AND($A2<C$1,$B2<C$1),0,IF(AND($A2>=C$1,$B2>=D$1),D$1-$A2,IF(AND($A2<C$1,$B2<D$1),DAY(B2),IF(AND($A2<C$1,$B2>=D$1),D$1-C$1,0)))))))))
推荐答案
无论如何，这是基于标准公式的完整性的替代方法
Anyway here is the alternative approach for completeness based on the standard formula
=max(0,min(end1,end2)-max(start1,start2)+1)
给出两个日期范围之间的重叠
for the overlap between 2 date ranges which gives
=MAX(0,MIN(IF($B2="",TODAY(),$B2),EOMONTH(DATEVALUE(C$1&"-17"),0))-MAX($A2,DATEVALUE(C$1&"-17"))+1)
这篇关于Excel-计算两个日期之间每个月的天数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！