perl - perl中的字符串插值

Answer 1

You want

print "Character for $num is: ", chr($num), "\n";

Answer 2

You can write something like :

foreach $num (2660..2670)
{
        print "Character for $num  is:",eval(qq!\"\\x{$num} \\n\"!);
}

The problem with your original program, is that perl cannot evaluate "\x{...}" because this evaluation is done before the interpolation of $num.