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Simple if statement question

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JP
JP 2013-6-19
Hi, just getting the hang of the basics of MATLAB and had a quick easy question. I have a variable defined as a string and I want to use an if statement on two parts of the string seperately.
EX.
Astr = '123456789'
if Astr(2:4,5:7) == '234','567'
x = 5
end
Of course I am hoping x = 5 would appear when I run this, but it gets an error on the 'if' line. Let me know how to accomplish this!

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the cyclist
the cyclist 2013-6-19
编辑：the cyclist 2013-6-19
You are pretty much inventing your own syntax here, and MATLAB won't understand that. :-)
One way to perform this test is
Astr = '123456789'
if strcmp(Astr(2:4),'234') && strcmp(Astr(5:7),'567')
x = 5;
end
The string comparison command that I used here is better than using "==" (which is more appropriate for numeric comparisons).

更多回答（1 个）

JP
JP 2013-6-19
Thanks very much! Yes I figured I was inventing a few things when doing that haha

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