Inputdlg requesting input to provide an output of 6 integers as a row vector

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David Low
David Low 2018-2-19
编辑： Stephen23 2018-2-19
I want to create a row of integers starting by asking an input from a user using the inputdlg function. I just need to make sure the output is a row vector with 6 integers.

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采纳的回答

Stephen23
Stephen23 2018-2-19
编辑：Stephen23 2018-2-19
Do NOT use str2num! Using sscanf is faster than str2num (and avoids the internal eval call that str2num hides inside):
>> c = inputdlg('Enter six space-separated integers:')
>> v = sscanf(c{1},'%d',[1,Inf])
v =
1 2 3 4 5 6
To ensure that there are six integers either add an assert:
assert(numel(v)==6,'Input exactly six integers.')
or a while loop:
v = [];
while numel(v)~=6
c = inputdlg('Enter six space-separated integers:');
v = sscanf(c{1},'%d',[1,Inf])
end

更多回答（1 个）

ES
ES 2018-2-19
inputdata = [];
while(~isequal(size(inputdata), [1,6]))
x = inputdlg('Enter 6 integers as space-separated numbers:',...
'Sample', [1 50]);
inputdata = str2num(x{:});
end

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