控件值---公式 里加 year(today())-1+"-"+month(today())+"-"+day(today())
今年2月份有29号去年没有,应该会取去年的2月28号
如果不放心可以在公式里加个if判断
if((month(today())+"-"+day(today()))="02-29",year(today())-1+"-"+month(today())+"-"+day(today()-1),year(today())-1+"-"+month(today())+"-"+day(today()))