如何设置表格中的抽奖功能?
如图所示,C2公式:
= LARGE(IF(COUNTIF(c $ 1:c 1,ROW($1:$30))=0,ROW($1:$30),RANDBETWEEN(1,31-ROW(a1)))
数组公式,CTRL+SHIFT+ Enter,下拉;
= LARGE(IF(COUNTIF(c $ 1:c 1,ROW($1:$30))=0,ROW($1:$30),RANDBETWEEN(1,31-ROW(a1)))
数组公式,CTRL+SHIFT+ Enter,下拉;