how can i go back to the fist choose again with out termination after finshing the first task?

Question

Abe Ada 2014-6-24

0
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https://ww2.mathworks.cn/matlabcentral/answers/137262-how-can-i-go-back-to-the-fist-choose-again-with-out-termination-after-finshing-the-first-task

评论： Abe Ada 2014-6-24

 mynumber = input('Enter a number:');
switch  mynumber
    case -1
        disp('negative one');
    case 0
        disp('zero');
    case 1
        disp('positive one');
    otherwise
        disp('other value');
end
hello every one 
I wrote some code which repeatedly do some task
eg like this above which is in mat lab docc.  
when I select the first choice(1}
the program does the first statement only and stops.what i want is ,after compelitilng the first task it  should asks me again if i want to choose the choices starting  from choice 1 
how can i do that?

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Answer 1

David Sanchez 2014-6-24

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https://ww2.mathworks.cn/matlabcentral/answers/137262-how-can-i-go-back-to-the-fist-choose-again-with-out-termination-after-finshing-the-first-task#answer_142187

在 MATLAB Online 中打开

Use a while-loop:

      mynumber = 0;
       while (mynumber ~= 3)  % condition to get out of the loop. Change to your needs
          mynumber = input('Enter a number:');
          switch mynumber 
              case -1 
                  disp('negative one'); 
              case 0 
                  disp('zero'); 
              case 1 
                  disp('positive one'); 
              otherwise
                  disp('other value');
          end
       end