=IF(COLUMN(A1)>ROW(A1),"",COLUMN(A1)&CHAR(41409)&ROW(A1)&"="&ROW(A1)*COLUMN(A1))
向下拉，向右拉
还有2种方法是数组公式的，输入公式后以 CTRL + SHIFT + 回车结束，再向下拉，向右拉
=IF(COLUMN($A:$I)>ROW($1:$9),"",ROW($1:$9)&CHAR(41409)&COLUMN($A:$I)&"="&ROW($1:$9)*COLUMN($A:$I))
=IF(COLUMN($A:$I)>ROW($1:$9),"",TEXT(COLUMN($A:$I),"[dbnum1]")&TEXT(ROW($1:$9),"[dbnum1]")&IF(LEN(ROW($1:$9)*COLUMN($A:$I))=1,"得","")&TEXT(ROW($1:$9)*COLUMN($A:$I),"[dbnum1]"))
