G2输入:=LOOKUP(1,0/(MAX(($B$2:$B$23=F2)*$A$2:$A$23)=$A$2:$A$23),$C$2:$C$23),下拉填充。如果日期是按升序方式输入的,或者排过序的,可用简为:=LOOKUP(1,0/($B$2:$B$23=F2),$C$2:$C$23)
见截图G2输入=INDEX(C:C,MAX(IF($B$1:$B$100=F2,ROW($1:$100),0)))数组公式,先按住CTRL+SHIFT,最后回车公式下拉