Keeping Previous Iteration changes
显示 更早的评论
I am trying to change the user inputted text with the apropriate index of cipher vector. However, i cant seem to be able to keep the changes from the previous iterations of the for loop. How can i keep the changes with each iteration?
cipherVector = ['D','R','I','U','S','Y','A','Q','B','W','T','E','Z','N','L','P','M','O','C','V','H','G','F','J','X','K'];
letterVector = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'];
userEncrypt = input('Enter sentence','s')
for i= 1: strlength(userEncrypt)
if ismember(lower(userEncrypt(i)), letterVector)
x = strrep(userEncrypt, userEncrypt(i), cipherVector(strfind(letterVector,lower(userEncrypt(i)))))
end
end
4 个评论
Fabio Freschi
2019-10-31
Why did you delete your question? It could be of interest for Matlab community
Adam Danz
2019-10-31
@Nelson Gonzalez, please revert your question. It's disrespectful to remove your question and make it useless after volunteers gave up their time to help you.
@Fabio Freschi, if you approximately remember the question I'd be glad to edit the question and replace the text if you don't have those privileges yet.
Rena Berman
2019-12-12
(Answers Dev) Restored edit
Adam Danz
2019-12-12
Thank you Rena Berman
回答（1 个）
Fabio Freschi
2019-10-27
I see two problems in your code
1) the changes are only temporarily saved in x and x is never used
2) onec you change a letter, all the characters with that letter are changed, than the cypherLetter is changed again. For example if your sentence is 'aaa', after the first iteration you get 'DDD' and the second D is then processed at the second iteration.
I changed your code like this
cipherVector = ['D','R','I','U','S','Y','A','Q','B','W','T','E','Z','N','L','P','M','O','C','V','H','G','F','J','X','K'];
letterVector = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'];
userEncrypt = input('Enter sentence: ','s');
for i= 1: strlength(userEncrypt)
% find position
iPos = find(letterVector==lower(userEncrypt(i)));
if ~isempty(iPos)
userEncrypt(i) = cipherVector(iPos);
end
end
disp(userEncrypt)
I hope this meets your initial request
类别
在 帮助中心 和 File Exchange 中查找有关 Encryption / Cryptography 的更多信息
2019-10-26
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
