问题
I have a formula an iferror formula that puts in "" if an error occurs. This is a zero length string. I'd like to do a count if not equal to "".
=countif(A:A,<>"") 'is not a valid formulas
=countif(A:A,"<>") 'checks for actual blanks, not zero length strings
回答1:
Do a count for empty cells using:
=COUNTBLANK(A2:B5)
and subtract that value from the total.
回答2:
Rather than using COUNTBLANK and subtracting from the total, you can use:
=COUNTIF(A:A,"?*")
? is the single character wildcard.* is the multiple character wildcard.
Combining these two, it will count if there are 1 or more characters.
Note that this works only if the cells contains strings, not numbers.
回答3:
You could perhaps use SUMPRODUCT since you have limited control over the range or criteria.
=SUMPRODUCT(--(LEN(A:A)<>0))
LEN(A:A)<>0 checks the length of the strings in the range A:A for whether they are 0 or not. Wrapping it in parens and putting -- before it will convert True to 1 and False to 0.
SUMPRODUCT then takes all the 1s and 0s and add them up.
来源：https://stackoverflow.com/questions/23701470/excel-countif-not-equal-to-string-length-of-zero