Countif函數(shù)是Microsoft Excel中對指定區(qū)域中符合指定條件的單元格計(jì)數(shù)的一個函數(shù)，在WPS，Excel2003和Excel2007等版本中均可使用。下面是相關(guān)的知識，歡迎閱讀。

【資料圖】

該函數(shù)的語法規(guī)則如下：

countif(range，criteria)

參數(shù)：range 要計(jì)算其中非空單元格數(shù)目的區(qū)域

參數(shù)：criteria 以數(shù)字、表達(dá)式或文本形式定義的條件

一、求各種類型單元格的個數(shù)

(1) 求真空單元格個數(shù):=COUNTIF(數(shù)據(jù)區(qū),"=")

(2) 非真空單元格個數(shù): =COUNTIF(數(shù)據(jù)區(qū),"<>") 相當(dāng)于counta()函數(shù)

(3) 文本型單元格個數(shù): =COUNTIF(數(shù)據(jù)區(qū),"*") 假空單元格也是文本型單元格

(4) 區(qū)域內(nèi)所有單元格個數(shù): =COUNTIF(數(shù)據(jù)區(qū),"<>"""),如果數(shù)據(jù)區(qū)內(nèi)有",該公式不成立.

(5) 邏輯值為TRUE的單元格數(shù)量 =COUNTIF(數(shù)據(jù)區(qū),TRUE)

二、求大于或小于某個值的單元格個數(shù)

(1) 大于50=COUNTIF(數(shù)據(jù)區(qū),">50")

(2) 等于50=COUNTIF(數(shù)據(jù)區(qū),50)

(3) 小于50 =COUNTIF(數(shù)據(jù)區(qū),"<50")

(4) 大于或等于50 =COUNTIF(數(shù)據(jù)區(qū),">=50")

(5) 小于或等于50 =COUNTIF(數(shù)據(jù)區(qū),"<=50")

(6) 大于E5單元格的值 =COUNTIF(數(shù)據(jù)區(qū),">"&$E$5)

(7) 等于E5單元格的值 =COUNTIF(數(shù)據(jù)區(qū),$E$5)

(8) 小于E5單元格的值 =COUNTIF(數(shù)據(jù)區(qū),"<"&$E$5)

(9) 大于或等于E5單元格的值 =COUNTIF(數(shù)據(jù)區(qū),">="&$E$5)

(10) 小于或等于E5單元格的值 =COUNTIF(數(shù)據(jù)區(qū),"<="&$E$5)

三、等于或包含某N個特定字符的"單元格個數(shù)

(1) 兩個字符 =COUNTIF(數(shù)據(jù)區(qū),"??")

(2) 兩個字符并且第2個是B=COUNTIF(數(shù)據(jù)區(qū),"?B")

(3) 包含B =COUNTIF(數(shù)據(jù)區(qū),"*B*")

(4) 第2個字符是B =COUNTIF(數(shù)據(jù)區(qū),"?B*")

(5) 等于“你好”=COUNTIF(數(shù)據(jù)區(qū),"你好")

(6) 包含D3單元格的內(nèi)容 =COUNTIF(數(shù)據(jù)區(qū),"*"&D3&"*")

(7) 第2字是D3單元格的內(nèi)容 =COUNTIF(數(shù)據(jù)區(qū),"?"&D3&"*")

注：countif()函數(shù)對英文字母不區(qū)分大小寫，通配符只對文本有效

四、兩個條件求個數(shù)

(1)>10并且<=15 =SUM(COUNTIF(數(shù)據(jù)區(qū),">"&{10,15})*{1,-1})

(2)>=10并且<15 =SUM(COUNTIF(數(shù)據(jù)區(qū),">="&{10,15})*{1,-1})

(3)>=10并且<=15 =SUM(COUNTIF(數(shù)據(jù)區(qū),{">=10",">15"})*{1,-1})

(4)>10并且<15 =SUM(COUNTIF(數(shù)據(jù)區(qū),{">10",">=15"})*{1,-1})或者=SUM(COUNTIF(數(shù)據(jù)區(qū),{">10",">=15"})-樣本數(shù)

注：一般多條件計(jì)數(shù)使用SUMPRODUCT函數(shù)，以上方法較少使用，僅供參考。

補(bǔ)充：

三個區(qū)域計(jì)數(shù)： 三個區(qū)域中>=60 =SUM(COUNTIF(INDIRECT({"a46:a48","b48:b50","c47:c48"}),">=60"))

補(bǔ)充：(集合運(yùn)算法)

統(tǒng)計(jì)范圍，比如5<= x <=7

可以分解為(x>=5)-(x>7)

寫為函數(shù)：

=countif(range,">=5")-countif(range,">7")

這樣就可以利用集合的運(yùn)算知識了。同樣實(shí)現(xiàn)了上面兩個條件求個數(shù)相同的目的，并且更簡單易于理解。