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Excel提取字符串中倒数第二个数字

  • 2026-05-13 22:38:14
Excel提取字符串中倒数第二个数字

字符串长度不相等，包含字母和数字。现在只想要倒数第二个数字

首先，先把数字都提取出来，然后再要倒数第二个数字

通过len函数和sequence函数，就可以生成一个元素个数为字符串长度的数组

用mid函数套在外面，就可以把字符串的每个元素都拆分开来。上面那个数组中的每个元素都可以是mid函数的提取初始位置

在函数前面加两个-，就能把数值型字符转化为数字，文本型字符直接报错

嵌套iferror，只把数字留下，把报错消除

最后用concat拼接，数字提取就完成了

C列提取完数字，接下来拿出倒数第二个数字。

使用mid函数，关键在于从倒数第二个位置开始提取。

因为每个单元格的数字长度不一样，所以用单元格的总长度减去1，就是倒数第二个数字的位置了

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