perl function continue

In Perl, the continue keyword is used in a loop to skip the rest of the current iteration and move on to the next iteration. Here's an example of how to use continue:

# Iterate over a list of numbers
foreach my $num (1..10) {
    # Skip even numbers
    if ($num % 2 == 0) {
        next;
    }

    # Print odd numbers
    print "$num\n";
    
    # Skip numbers that are divisible by 3
    if ($num % 3 == 0) {
        # Skip the rest of the loop body and move on to the next iteration
        continue;
    }

    # Print a message for numbers that are not divisible by 3
    print "$num is not divisible by 3\n";
}

In this example, the foreach loop iterates over a list of numbers from 1 to 10. If the number is even, the loop uses the next keyword to skip the rest of the loop body and move on to the next iteration. If the number is odd, the loop prints the number to the console and then checks to see if it's divisible by 3. If it is divisible by 3, the loop uses the continue keyword to skip the rest of the loop body and move on to the next iteration. If it's not divisible by 3, the loop prints a message to the console.

Using continue can be useful in situations where you want to skip a particular iteration of a loop based on some condition, but you don't want to exit the loop entirely.