how to concat two strings with data from external file inbetween?

Question

Hugo 2021-9-5

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1447054-how-to-concat-two-strings-with-data-from-external-file-inbetween

回答： Paul 2021-9-5

采纳的回答： Pablo J. Rosado Junquera

Hi,

I have two strings:

string1='Simpson'

string2='Wilder'

I also have an external text file, called numbers.txt whose content is:

1

11

23

46

76

I would like to read numbers.txt and write the following to an external file, called concat.txt

Simpson,1,Wilder,

Simpson,11,Wilder,

Simpson,23,Wilder,

Simpson,46,Wilder,

Simpson,76,Wilder,

How can I do this in MATLAB?

I thank you in advance,

Best regards,

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Answer 1

Pablo J. Rosado Junquera 2021-9-5

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https://ww2.mathworks.cn/matlabcentral/answers/1447054-how-to-concat-two-strings-with-data-from-external-file-inbetween#answer_781184

To read your input data, you could use the function readmatrix. Then, the function strcat is what you want to use to perform your string operations. The last step would be using writematrix to write down your concat txt file.

Cheers!

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Answer 2

Paul 2021-9-5

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https://ww2.mathworks.cn/matlabcentral/answers/1447054-how-to-concat-two-strings-with-data-from-external-file-inbetween#answer_781189

在 MATLAB Online 中打开

One approach, I'm sure there are others:

first = "Simpson";
last  = "Wilder";
nums = string(readmatrix('input.txt'));
out = first + "," + nums + "," + last;
writematrix(out,'output.txt','QuoteStrings',false);