How to print out if a number is positive or negative without using If statement-CodePudding

I'm very new to Perl, and currently I'm doing some basic exercises, one that is proposed is to insert a number and print out if it is positive or negative, without using if statements. I know how to do the logic, but I don't know how to print the output without using an if statement.

CodePudding user response：

Use the conditional operator.

For example:

perl -E '$n=42; $n==0 ? say "zero" : $n<0 ? say "negative" : say "positive"'
positive

perl -E '$n=-42; $n==0 ? say "zero" : $n<0 ? say "negative" : say "positive"'
negative

perl -E '$n=0; $n==0 ? say "zero" : $n<0 ? say "negative" : say "positive"'
zero

CodePudding user response：

You can try this print $number >= 0? "Positive":"Negative";