=COUNTIF(A1:A10,"A")+COUNTIF(A1:A10,"E")+COUNTIF(A1:A10,"F")

=COUNTIF(A1:A10,"A")+COUNTIF(A1:A10,"E")+COUNTIF(A1:A10,"F") excel中,公式“=COUNTIF(A1:A10,A1)“与“=COUNTIF(A1:A10,A1:A10)”的结果是 公式Sumproduct(CountIF(Range("A1:A10"),Range("B1:B10")))如何理解 COUNTIF函数的作用是什么?请帮我解释这个函数的具体意思“=COUNTIF(A1:A10,"0"),重点是"0"怎么 countif（a1:b2,a1: COUNTIF(A1:D30,A1: =(SUM(A1:A10)-MAX(A1:A10)-MIN(A1:A10))/(COUNT(A1:A10)-2)是什么意 =IF(COUNTIF(A$1:A1,A1)=1,COUNTIF(A:A,A1),"") COUNTIF(A$1:A1,A1)=1和COUNTIF(A:A,A1),期待您的回复. EXCEL表中用countif函数统计A1:A10单元格中数据在：0.3-0.5之间的单元格个数,用公式怎么表达 COUNTIF函数查找重复,= COUNTIF ($A$1:$A$9,A1)这个公式对否? =SUMPRODUCT(1/COUNTIF(A1:A20,A1:A20)) 与=sum(1/COUNTIF(A1:A20