Asking for user input of numbers and letters.

Question

Thomas Robertson 2022-3-3

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1663179-asking-for-user-input-of-numbers-and-letters

评论： David Hill 2022-3-3

Hi, I coded a program that can can take an image of a lisence palte and output it's numbers and letters. Now I'm trying to set up a way for the user to enter the correct lettes/numbers of the lisence plate to see if it matches with the letters and numbers generated by MatLab I'm just not sure how. I'm not sure how the user can input a line of both numbers and letters as input. For reference noPlate is the name of the numberplate generated by matlab.

x = input('What is the correct value of the lisence plate? ')

if (x==noPlate)

output('Nice')

else

output('The entered value does not match MatLab. Would you like to try again? (Y/N)')

end

Thanks, any help will be appreciated!

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

David Hill 2022-3-3

在 MATLAB Online 中打开

Is noPlate a character array (exampple 'F4RE9')? If not it would be easier to convert noPlate to a character array.

if isequal(x,noPlate) %should use isequal

You could convert 'F4RE9' to both letters and numbers in a cell array

x= 'F4RE9';
a=mat2cell(x',ones(size(x')));
for k=1:length(a)
 if a{k}>='0'&&a{k}<='9'
  a{k}=str2double(a{k});
 end
end
%now a is a cell array of letters and numbers and isequal will still work
%as long as noPlate is in same cell array

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Abolfazl Chaman Motlagh 2022-3-3

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1663179-asking-for-user-input-of-numbers-and-letters#answer_909294

在 MATLAB Online 中打开

if the plate (variable) could have both number and latters, deal with them like string. for getting input as string you need extra option 's' . for comparing two string use strcmp.

User_input = input('What is the correct value of the lisence plate?   ','s');
if strcmp(User_input,noPlate)
    output('Nice')
else
    output('The entered value does not match MatLab. Would you like to try again? (Y/N)')
end