如图，如果只考虑单元格里只有1组房间号（即没有顿号），可以用公式C3=RIGHT(A3,LEN(A3)-FIND("-",A3,1))-LEFT(A3,FIND("-",A3,1)-1)+1如果考虑不超过2组房间号（超出的显示先拆分），公式就非常非常繁琐：C3=IF(LEN(B3)-LEN(SUBSTITUTE(B3,"-",""))=1,RIGHT(B3,LEN(B3)-FIND("-",B3,1))-LEFT(B3,FIND("-",B3,1)-1)+1,IF(LEN(B3)-LEN(SUBSTITUTE(B3,"-",""))=2,MID(B3,FIND("-",B3,1)+1,FIND("、",B3,1)-FIND("-",B3,1)-1)-LEFT(B3,FIND("-",B3,1)-1)+RIGHT(B3,LEN(B3)-FIND("-",REPLACE(B3,FIND("-",B3,1),1,"N"),1))-MID(REPLACE(B3,FIND("-",B3,1),1,"N"),FIND("、",B3,1)+1,FIND("-",REPLACE(B3,FIND("-",B3,1),1,"N"),1)-FIND("、",B3,1)-1)+2,"请先拆分"))以上有点得不偿失，建议修改表格形式，房间号改为2列“起始房间号”、“结束房间号”，这样房间数可以通过I3=H3-G3+1轻松获取}