How to decide, number or character!

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dmfwlansejr
dmfwlansejr 2022-11-7
回答： Steven Lord 2022-11-7
A = ';A0sf1001p00';
A(1) = ';'
A(2) = 'A';
A(3) = '0';
I want to following
for n=1:10
X=str2num(A(n));
if X(1) == Number ? <--Waht is the this Code?
num=X;
else
discard
end
end
Result :
num=0100100

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回答（2 个）

Stephen23
Stephen23 2022-11-7
Ran in:
A = ';A0sf1001p00';
X = isstrprop(A,'digit');
N = A(X)
N = '0100100'
Steven Lord
Steven Lord 2022-11-7
If for whatever reason (homework?) you cannot just use isstrprop like @Stephen23 suggested, look at the documentation page for the str2num function. What is it documented to return if the input is not the text representation of a number? How would you detect that output?

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