Looping a switch statement

Question

Bob Sherland 2018-4-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/397044-looping-a-switch-statement

评论： Bob Sherland 2018-4-24

I currently have the code below, in which the user is asked to enter a task, which then uses the switch statement shown below.

switch task

    case 'create a file'
         fprintf('You have chosen to create a file \n');   
    case 'quit'
         fprintf('You have chosen to quit \n');
         break;
    otherwise
         fprintf('You have entered an action not on the list\n');
         fprintf('You will now be directed to the start again to select another action \n');

I was wondering how to loop it back to the beginning and continually ask for the user to input a task and how to exit fully out of the loop if the user enters 'quit'

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Answer 1

Ahmet Cecen 2018-4-24

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/397044-looping-a-switch-statement#answer_316894

编辑：Ahmet Cecen 2018-4-24

在 MATLAB Online 中打开

This is not the safest way to do this, and you will likely realize why later, but for purely educational purposes:

 while true
    task = input('Please Enter Task\n','s');
    switch task
        case 'create a file'
             fprintf('You have chosen to create a file \n');   
        case 'quit'
             fprintf('You have chosen to quit \n');
             break;
        otherwise
             fprintf('You have entered an action not on the list\n');
             fprintf('You will now be directed to the start again to select another action \n');
    end
 end