xiayu1013 发表于 2016-7-27 18:25
在年份月份已经的情况下
webshare 发表于 2016-7-27 18:15
=DAY(DATE(YEAR(TODAY()),MONTH(TODAY()),1)-1)
webshare 发表于 2016-7-28 10:34
可以,把year(today()),month(today())换成对应的年份及月份就行
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