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51问答网 > 怎么确认一组7个的数字中任意3个数字和excel表格中某一组7个数字中的任意3个数字是重复的

怎么确认一组7个的数字中任意3个数字和excel表格中某一组7个数字中的任意3个数字是重复的

2025-03-14 07:49:59

推荐回答（2个）

回答1：

A列为7个数字，C列为数据组。在A列随机取得一个数据，在C列的任意7个连续数字中验证。

D1==COUNTIF(C1:C7,CHOOSE(RANDBETWEEN(1,5),$A$1:$A$7))

回答2：

假设数据在A列则在B1中输入公式 =LEFT(A1,3)&"."&MID(A1,4,LEN(A1)-3) 回车拖动向下复制公式就可以批量加点了（这个公式可以避免数字不是7位的可能）

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