=TEXT(RIGHT(A1,LEN(A1)-FIND("-",A1))+1,"m月d日")&"-"&TEXT(RIGHT(A1,LEN(A1)-FIND("-",A1))+7,"m月d日")
=TODAY()-(MAX(WEEKDAY(TODAY(),3),4)-4)或=A1-(MAX(WEEKDAY(A1,3),4)-4)
