If the warning list contains an invalid number, an error is reported.

如果该警告列表包含无效的错误号，将会报告一个错误。

youdao

Raised when an invalid number of arguments have been passed to a function.

当传递给函数的参数的个数无效时引发。

youdao

You have entered an invalid number or partial credit card or debit card number. Please check your entry and try again.

然后把我的银行借记卡号添了进去，他老是卡号无效。

youdao

-- Else if n is greater than 4 and n is less than 6 -- 7 let's call it medium -- else if n is greater than or equal to 7, -- less than or equal to 10 -- let's call it "big" -- and if the user typed in zero or negative 10 or 20 or whatever, let's just use the all-inclusive else block and just say, "You picked an invalid number."

否则如果n大于4，并且n小于-,我们叫它为中间数--否则如果n大于等于，小于等于10--我们叫它为“大数“,如果用户键入了0或者-10或20或其它的，让我们用一个广泛的else子句，只需要说，“你选了一个非法的数字“

哈佛公开课 - 计算机科学课程节选

Oftentimes finding their initial assumptions to be invalid, most of the teams ended up making large or small changes of directions an equal number of times.

FORBES: Fail Fast, Succeed Faster