my %hash =(
'eye' => '2',
'nose’' => '1',
'mouth' => '3',
'ear’' => '4',
);
my @keys = sort {$hash{$b} <=> $hash{$a}} keys(%hash);
print "@keys";
1 2 3 4
ear mouth eye nose
eye nose mouth ear
2 1 3 4
这道题你会答吗?花几分钟告诉大家答案吧!
扫描二维码,关注牛客网
下载牛客APP,随时随地刷题