<perl> 复杂数据结构 (Reference & Dereference)
$current_line{'vs1'}='first'; $vs1_key=12; push @{ ${$vs1{"$current_line{'vs1'}"}}{$vs1_key} }, "sdsd"; print @{${$vs1{'first'}}{12}}; # "sdsd"
其数据结构:
$current_line{'vs1'}='first'; $vs1_key=12; push @{ ${$vs1{"$current_line{'vs1'}"}}{$vs1_key} }, "sdsd"; print @{${$vs1{'first'}}{12}}; # "sdsd"
其数据结构: