perl 第三层hash 提取keys 错误%hash = (name => {small => {dog => 1,cat => 2,rabit => 3,},medium => 1,large => 2,},);my @keys = keys %{$hash{name}}; ==> result:large small medium...3.my @keys = keys %{$hash{name{small}}};==> Can't locate object

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perl第三层hash提取keys错误%hash=(name=>{small=>{dog=>1,cat=>2,rabit=>3,},medium=>1,large=>2,},);my@keys=key

perl 第三层hash 提取keys 错误%hash = (name => {small => {dog => 1,cat => 2,rabit => 3,},medium => 1,large => 2,},);my @keys = keys %{$hash{name}}; ==> result:large small medium...3.my @keys = keys %{$hash{name{small}}};==> Can't locate object
perl 第三层hash 提取keys 错误
%hash = (
name => {
small => {
dog => 1,
cat => 2,
rabit => 3,
},
medium => 1,
large => 2,
},
);
my @keys = keys %{$hash{name}}; ==> result:large small medium...3.
my @keys = keys %{$hash{name{small}}};==> Can't locate object method "name" via package "small" (perhaps you forgot to load "small"?) at hash line 20.
my $keys = @keys;
print "@keys...$keys.\n"
为什么无法获取第三层的hash keys,而第二层则正常?

perl 第三层hash 提取keys 错误%hash = (name => {small => {dog => 1,cat => 2,rabit => 3,},medium => 1,large => 2,},);my @keys = keys %{$hash{name}}; ==> result:large small medium...3.my @keys = keys %{$hash{name{small}}};==> Can't locate object perl $@ perl数组推到哈希中假如一个数组是这样的aaaa,vbbbbbccccc,dddddeeeee,xxxxx就是这样两列逗号间隔的,如何让第一列是keys 第二列是value 请教一个perl基础问题,for $ranking (reverse sort keys %node),这句的含义是什么魔方还原第三层魔方第三层还原法 HASH是什么? 第三层魔方怎么转魔方第三层还原公式魔方第三层咋拼个十字怎样复原魔方第三层魔方第三层怎么弄魔方第三层咋拼? 魔方怎么拼第三层魔方怎么摆第三层从文件中提取符合要求的数据,编程语言不限,最好是perl/python/shell/vb/c其中的一种,采纳后另附送30分有一文件,其格式为：共3列,第1列是方位（north,west...）,第2列是坐标,第3列是判定条件（共4个魔方第三层怎么转魔方前两层已转好,就差第三层了, 三层魔方第三层最后两个对角怎么拼