my $numA= $ARGV[0]; #5
my $numB= $ARGV[1]; #5
my $func= $ARGV[2]; #+
my $result = $numA .$func . $numB; #The result shoudl be 10
print "The result is: $result"; # The result is: 5+5
我有这个代码,我希望'$ func'作为运算符添加'$ numA'和'$ numB'.