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问题描述

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在Excel 2007中,我有一个年号和周号,我想要计算出月份号。一周是星期一,所以有几个星期会在几年内重叠。



示例:

 code>年份:2012 
第一周开始:1月2日星期一
星期日1月1日在2011年的第52周

所以给出如下:

 年份:2011 
周:10

如何在这周工作10,从3月7日开始,因此第10周是在第3个月



感谢您的任何帮助。

解决方案

以下方法




  • 确定1月1日的(ISO)周(见)[在单元格 C4 ]



    = INT((B4-DATE(YEAR(B4-WEEKDAY(B4-1)+4),1,3)+ WEEKD AY(DATE(YEAR(B4-WEEKDAY(B4-1)+4),1,3))+ 5)/ 7)(假设B4 = DATE ],1,1))


  • 计算第1周开始的日期[在单元格 D4 ]



    = IF(C4 = 1,B4-WEEKDAY(B4,3),B4 + 7-WEEKDAY(B4,3))


  • 确定相关周的星期一和相应的月​​份



    = MONTH(D4 + 7 *([Week] -1))



In Excel 2007 I have a Year number and Week number and I want to work out the Month number.

The catch is that in my case the start of every week is a monday, so some weeks will overlap through the years.

Examples:

Year: 2012
Week 1 started: Monday 2nd January
Sunday 1st January was in week 52 of 2011

So given the below:

Year: 2011
Week: 10

How can I work out that week 10 started on 7th March and therefore week 10 was in Month number 3.

Thanks for any help on this.

解决方案

I suggest the following approach

  • Determine the (ISO) week of January 1st (see this page) [in cell C4]

    =INT((B4-DATE(YEAR(B4-WEEKDAY(B4-1)+4),1,3)+WEEKDAY(DATE(YEAR(B4-WEEKDAY(B4-1)+4),1,3))+5)/7) (assuming B4 =DATE([Year],1,1))

  • Calculate the day on which week 1 starts [in cell D4]

    =IF(C4=1,B4-WEEKDAY(B4,3),B4+7-WEEKDAY(B4,3))

  • Determine the Monday of the week in question and the corresponding month

    =MONTH(D4+7*([Week]-1))

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