Excel：除以逗号分隔的单个单元格数字

Question

我在一个用逗号分隔的 Excel 单元格中有一串数字，例如A2 = "4,3,2,7"。我想要一个公式能够在单元格B2 中将这些数字除以 2，例如B2 = "2,1,1,3"（奇数应该向下取整而不是向上取整）

公式需要能够说明：
- 更小或更大的数字串
- 适用于一位数和两位数
- 偶数或奇数
- 没有 VBA
- 公式可以使用多列，但不能使用分隔文本到列功能（由于单元格位置）

我能够得到一个公式来对 A2 (4,3,2,7 = 16) 中的数字字符串求和，但不能除以 2。我对字符串求和的公式如下。任何帮助表示赞赏，谢谢！

{=SUM(IF(ISERR(VALUE(MID(A2,ROW($A$1:OFFSET($A$1,LEN(A2)-1,0‌​)),1))),0,VALUE(MID(‌​A2,ROW($A$1:OFFSET($‌​A$1,LEN(A2)-1,0)),1)‌​)))}

Answer 1

在您的示例中，将此公式用于单元格B1：

=SUBSTITUTE(SUBSTITUTE(A1,",","000")/2,"000",",")

那么结果会是这样的：

 |    A    |    B    |
 +---------+---------+  
1| 4,2,6,8 | 2,1,3,4 |
2|

Answer 2

嗯，这是我第二次尝试解决（我希望）你的问题。如果您的字符串在单元格A2 中，则将此代码放入单元格B2：

=LEFT(IFERROR(ROUNDDOWN(MID(A2,1,1)/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,3,1)/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,5,1)/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,7,1)/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,9,1)/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,11,1)/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,13,1)/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,15,1)/2,0),""),LEN(A2))

它最多可以处理 8 个数字字符串，以及奇数。

更新

这个公式可以处理两位数，但它只支持1到4个字符串数字（例如（25,5,36,48））：

=LEFT(IFERROR(ROUNDDOWN(MID(A2,1,IFERROR(SEARCH(",",A2,1)-1,LEN(A2)))/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,SEARCH(",",A2,1)+1,IFERROR(SEARCH(",",A2,SEARCH(",",A2,1)+1)-SEARCH(",",A2,1)-1,LEN(A2)-SEARCH(",",A2,1)))/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,SEARCH(",",A2,SEARCH(",",A2,1)+1)+1,IFERROR(SEARCH(",",A2,SEARCH(",",A2,SEARCH(",",A2,1)+1)+1)-SEARCH(",",A2,SEARCH(",",A2,1)+1)-1,LEN(A2)-SEARCH(",",A2,SEARCH(",",A2,1))))/2,0),"")&","&IFERROR(ROUNDDOWN(MID(A2,SEARCH(",",A2,SEARCH(",",A2,SEARCH(",",A2,1)+1)+1)+1,IFERROR(SEARCH(",",A2,SEARCH(",",A2,SEARCH(",",A2,SEARCH(",",A2,1)+1)+1)+1)-SEARCH(",",A2,SEARCH(",",A2,SEARCH(",",A2,1)+1)+1)-1,LEN(A2)-SEARCH(",",A2,SEARCH(",",A2,SEARCH(",",A2,1)+1)+1)))/2,0),""),LEN(A2))