perl hash 根据键访问相应值
发布时间:2020-12-15 23:52:48 所属栏目:大数据 来源:网络整理
导读:但是HASH的键则全部必须是唯一的字符窜访问hash元素[oracle@jhoa 9]$ cat 4.pl my %hash = ("a" = 1,"b" = 2,"c" = 3);$var= $hash{a};print "$var is $varn";[oracle@jhoa 9]$ perl 4.pl $var is 1hash 键赋值[oracle@jhoa 9]$ cat 5.pl my %hash = ("a"
但是HASH的键则全部必须是唯一的字符窜 访问hash元素 [oracle@jhoa 9]$ cat 4.pl my %hash = ("a" => 1,"b" => 2,"c" => 3); $var= $hash{a}; print "$var is $varn"; [oracle@jhoa 9]$ perl 4.pl $var is 1 hash 键赋值 [oracle@jhoa 9]$ cat 5.pl my %hash = ("a" => 1,"c" => 3); foreach $var (qw/a b c/){ print "I've head of $var $hash{$var}.n"; } [oracle@jhoa 9]$ perl 5.pl I've head of a 1. I've head of b 2. I've head of c 3. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |