How to create a question that loops until it receives correct answer?

Question

Seán Ó Héir 2017-4-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/337012-how-to-create-a-question-that-loops-until-it-receives-correct-answer

评论： Seán Ó Héir 2017-4-24

How do I create a program that repeatedly asks the question until the user gives the correct answer? Below is a simple code to explain what exactly I'm asking...

    prompt = 'What age is Seán? ';
    age = (input(prompt));
      ageans = 21;
      if age == ageans
          disp('Correct!');
      else
          disp('Wrong');
      end

So if someone were to answer 37, rather than 21, how would I change the code so that it would loop back to the original question to ask the user again?

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Answer 1

Adam 2017-4-24

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https://ww2.mathworks.cn/matlabcentral/answers/337012-how-to-create-a-question-that-loops-until-it-receives-correct-answer#answer_264253

在 MATLAB Online 中打开

age = 0;
ageans = 21;
while age ~= ageans
     prompta = 'What age is Seán? ';
     age = (input(prompta));
     if age == ageans
        disp('Correct!');
     else
        disp('Wrong');
     end 
end