While Loop Question - Will not Properly Execute
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% Until good gender, prompt user to enter the gender
y = input ( 'Is the person female(1) or male(2)? Enter 1 or 2: ' );
while (y ~= 1) || (y ~= 2)
disp( 'not 1 or 2' )
y = input ( 'Is the person female(1) or male(2)? Enter 1 or 2: ' );
end
Can anyone tell me why this will not properly execute when ran through MATLAB?
采纳的回答
Geoff Hayes
2019-2-14
Josh - consider your conditions for the while loop
while (y ~= 1) || (y ~= 2)
which is saying that if the input is not 1 (female) or not 2 (male) then ask the user to enter in a gender again. What you really want to say is if the input is not 1 AND not 2 then... (i.e. not female and not male) and so your code becomes
while (y ~= 1) && (y ~= 2)
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