SZ
Size: a a a
SZ
SZ
AP
SZ
SZ
AP
Formula $\frac{N}{\sum_{i}^{N}\frac{t_{ideepThink}}{t_{iread}}}$
И
И
VG
DF
AE
%hash{'non-existing-key'}
вернет не пустой хеш, а хеш с андеф элементом с этим ключом,AE
SZ
AE
AP
$ perl -MData::Dumper -E '%h=("a"=>"b"); %s=%h{"a","b"}; @s=@h{"a", "b"}; say Dumper \%s, \@s'
$VAR1 = {
'b' => undef,
'a' => 'b'
};
$VAR2 = [
'b',
undef
];
SZ
SZ
$ perl -MData::Dumper -E '%h=("a"=>"b", "c", "d"); %s=%h{"a","b"}; @s=@h{"a", "b"}; say Dumper \%s, \@s'
$VAR1 = {
'b' => undef,
'a' => 'b'
};
$VAR2 = [
'b',
undef
];