How to restart my program from a try/catch statment

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Harrison Miller 2021-10-28

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https://ww2.mathworks.cn/matlabcentral/answers/1573448-how-to-restart-my-program-from-a-try-catch-statment

编辑： Chris 2021-10-28

I am trying set up a try/catch statment for error detection within my program.

If an error occurs in the try statment, i would like to change a variable (by -1) and then retry the entire program, How to i go about this?

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Answer 1

Chris 2021-10-28

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https://ww2.mathworks.cn/matlabcentral/answers/1573448-how-to-restart-my-program-from-a-try-catch-statment#answer_818488

编辑：Chris 2021-10-28

在 MATLAB Online 中打开

With recursion, you could do something like this:

val = 1;
startThisAgain(val)
Beginning Program
Trying
Caught
Beginning Program
Trying
Done!
function startThisAgain(val)
    disp('Beginning Program')
    
    try
        disp('Trying')
        assert(~mod(val,2) == 1,'This is an error')
        disp('Done!')
        
    catch
        disp('Caught')
        val = val+1;
        startThisAgain(val)
        
    end
end