I want to throw the error that comes with entering a non number in a numeric only input

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Nam Vinh Nguyen 2021-8-30

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1443039-i-want-to-throw-the-error-that-comes-with-entering-a-non-number-in-a-numeric-only-input

评论： Nam Vinh Nguyen 2021-8-30

采纳的回答： Wan Ji

n = input('Please enter a number:\n');

I get this error and I want to throw it and write another error:

Error using input

Unrecognized function or variable 'k'.

Error in eer (line 1)

n = input('Please enter your name:\n');

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采纳的回答

Wan Ji 2021-8-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1443039-i-want-to-throw-the-error-that-comes-with-entering-a-non-number-in-a-numeric-only-input#answer_776769

在 MATLAB Online 中打开

n = str2num(input('Please enter a number:\n','s'));
if(isempty(n))
error('You are entering a non number in a numeric only input')
end

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Wan Ji 2021-8-30

在 MATLAB Online 中打开

n = input('Please enter a number:\n','s');
if(isempty(n))
    error('You are entering nothing')
elseif(isempty(str2num(n)))
    error('You are entering a non number in a numeric only input')
end
n = str2num(n);

Nam Vinh Nguyen 2021-8-30

Thank you so much king. It works !!

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MATLAB Programming Functions Argument Definitions

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