How can I avoid "div/0!" Errors in Google Docs spreadsheet- How do I avoid the '＃DIV/0!' error in Google docs spreadsheet?

problem ：

I have a column with average(K23:M23) that starts out with #DIV/0! I have a column with #DIV/0! At the beginning average(K23:M23)#DIV/0!when the K23 through M23 cells are empty. When K23 To M23 When the cell is empty .Preferably I'd like to only do the average of cells that contain non-zero, non-blank values. Best of all, I just want to calculate the inclusion of non-zero 、 The average of cells with non blank values .I think it's possible using the query command: I think you can use the query command ：

https://docs.google.com/support/bin/answer.py?hl=en&answer=159999https://docs.google.com/support/bin/answer.py?hl=zh-CN&answer=159999

But their example doesn't help me. But their example doesn't help me .

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Solution ：

Reference resources ： https://stackoom.com/en/question/Rh5H