A2公式,三键回车,横拉到C2,下拉;
=IF(COLUMN()<4,IF(ROW()-1>COUNT(IF(MATCH(Sheet1!$A$2:$A$5&Sheet1!$B$2:$B$5,Sheet1!$A$2:$A$5&Sheet1!$B$2:$B$5,)=ROW($2:$5)-1,1)),"",INDEX(Sheet1!A$1:A$5,SMALL(IF(MATCH(Sheet1!$A$2:$A$5&Sheet1!$B$2:$B$5,Sheet1!$A$2:$A$5&Sheet1!$B$2:$B$5,)=ROW($2:$5)-1,ROW($2:$5)),ROW(A1)))),I10)
D2公式,三键回车,横拉、下拉;
=IF(COUNT(IF((Sheet1!$A$2:$A$5=$A2)*(Sheet1!$B$2:$B$5=$B2),1))<COLUMN(B2),"",INDEX(Sheet1!$C$1:$C$5,SMALL(IF((Sheet1!$A$2:$A$5=$A2)*(Sheet1!$B$2:$B$5=$B2),ROW($A$2:$A$5)),COLUMN(B2))))