解决方法
> $ calar
> @rray
>%灰分
Matt Trout写了一个伟大的评论关于Perl sigils blog.fogus.me有用的,所以有粘贴下面:
Actually,perl sigils don’t denote variable type – they denote conjugation – $ is ‘the’,@ is
‘these’,% is ‘map of’ or so – variable type is denoted via [] or {}. You can see this with:
my $foo = 'foo'; my @foo = ('zero','one','two'); my $second_foo = $foo[1]; my @first_and_third_foos = @foo[0,2]; my %foo = (key1 => 'value1',key2 => 'value2',key3 => 'value3'); my $key2_foo = $foo{key2}; my ($key1_foo,$key3_foo) = @foo{'key1','key3'};
so looking at the sigil when skimming perl code tells you what you’re going to -get- rather
than what you’re operating on,pretty much.This is,admittedly,really confusing until you get used to it,but once you -are- used to it
it can be an extremely useful tool for absorbing information while skimming code.You’re still perfectly entitled to hate it,of course,but it’s an interesting concept and I
figure you might prefer to hate what’s -actually- going on rather than what you thought was
going on