=INDEX(B:B,SMALL(IF(--RIGHT($B$7:$B$17,LEN($B$7:$B$17)-FIND(".",$B$7:$B$17))=--RIGHT(LOOKUP(9E+307,$B$7:$B$17),LEN(LOOKUP(9E+307,$B$7:$B$17))-FIND(".",LOOKUP(9E+307,$B$7:$B$17))),ROW($A$7:$A$17),65536)+1,ROW(A1)))&""
同时按CTRL SHIFT 回车键,再下拉公式
=INDEX(B:B,SMALL(IF(MOD($B$7:$B$17,1)=MOD(LOOKUP(9E+307,$B$7:$B$17),1),ROW($7:$17)+1),ROW(A1)))
按Ctrl+Shift+Enter结束公式输入,向下复制公式。