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how to join 3 strings into single string?

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chocho
chocho 2017-4-2
评论： chocho 2017-4-2
I have a cell array [1*3 cell] Example Tcgh A6 1214 and i want to join them by put '-' in between and get Tcgh-A6-1214
i tried strcat and strjoin but doesn't work with me! Thanks

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采纳的回答

Stephen23
Stephen23 2017-4-2
编辑：Stephen23 2017-4-2
No ugly and inefficient loop is required:
>> C = {'Tcgh','A6','1214'};
>> out = sprintf('-%s',C{:});
>> out(2:end)
ans =
Tcgh-A6-1214
  6 个评论
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chocho
chocho 2017-4-2
Many Thanks @Stephen Cobeldick but i'm trying to avoid cellfun and prefer to use for loop for future use.
chocho
chocho 2017-4-2
@Stephen Cobeldick yes, you helped me a lot Thank you sooooo much

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更多回答（1 个）

Nicolaie Popescu-Bodorin
res = strCell{1};
for k=2:length(strCell),
res=[res '-' strCell{k}];
end;
disp(res);
  1 个评论
Stephen23
Stephen23 2017-4-2
This expands the output res on each iteration, which is not efficient:
https://www.mathworks.com/help/matlab/matlab_prog/preallocating-arrays.html
See my answer for a simpler and more efficient solution that does not use a loop.

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