四、两个条件求个数
(1)    >10并且<=15        =SUM(COUNTIF(data,">"&{10,15})*{1,-1}) 
(2)    >=10并且<15        =SUM(COUNTIF(data,">="&{10,15})*{1,-1})  
(3)    >=10并且<=15      =SUM(COUNTIF(data,{">=10",">15"})*{1,-1})
(4)    >10并且<15          =SUM(COUNTIF(data,{">10",">=15"})*{1,-1})
注：一般多条件计数使用SUMPRODUCT函数，以上方法较少使用，仅供参考。
补充：三个区域计数：
  三个区域中>=60         =SUM(COUNTIF(INDIRECT({"a46:a48","b48:b50","c47:c48"}),">=60"))
五、各种特殊统计要求的计算     A2：A32 为存放数据的区域
（1）非空文本（仅包括可键入文本）  =COUNTIF(A2:A32,">=!") 
（2）所有非空文本
=COUNTIF(A2:A32,">=!")+COUNTIF(A2:A32,">="&CHAR(1))-COUNTIF(A2:A32,">= ") 
或  {=SUM(COUNTIF(A2:A32,">="&{"!"," "})*{1,-1})+COUNTIF(A2:A32,">="&CHAR(1))}
（3）全部可见单元格 
{=SUM(N(IF(ISERROR(A2:A32),1,SUBSTITUTE(A2:A32," ",""))<>""))}
（4）有效可见单元格 
=COUNTIF(A2:A32,">=!")+COUNTIF(A2:A32,">="&CHAR(1))-COUNTIF(A2:A32,">= ")+COUNT(A2:A32)
（5）全部不见单元格（真空＋空格＋空文本）
=COUNTIF(A2:A32,"")-COUNTIF(A2:A32,">=!")+COUNTIF(A2:A32,">= ")
（6）空格  =COUNTIF(A2:A32,">= ")-COUNTIF(A2:A32,">=!") 
（7）空文本""  =COUNTIF(A2:A32,"")-COUNTIF(A2:A32,"=")
（8）逻辑与错误  =COUNTIF(A2:A32,"<>")-COUNTIF(A2:A32,"*")-COUNT(A2:A32)