如果数据在A2:B6
堆一个``03用不了吧
=IF(ROW(A1)>COUNT(0/(COUNTIF(OFFSET(A$2:B$2,,,ROW($1:$5)),$A$2:$B$6)=1)),"",INDIRECT(TEXT(MOD(SMALL((COUNTIF(OFFSET(A$2:B$2,,,ROW($1:$5)),$A$2:$B$6)*10+LOOKUP(ROW($1:$5)*2-{1,0},ROW($1:$10),MMULT(N(T(INDIRECT(TEXT(SMALL(ROW($2:$6)/1%+{1,2},ROW($1:$10)),"r0c00"),))>T(INDIRECT(TEXT(SMALL(ROW($2:$6)/1%+{1,2},COLUMN(A:J)),"r0c00"),))),ROW(1:10)^0)))/1%%+ROW($2:$6)/1%+{1,2},ROW(A1)),10^4),"r0c00"),))
复制代码
而且只适合1位数或1位字母吧``
公式是将其从小到大排序去除重复项（但在父子级有取巧成分，对于这种父子级没问题）
