数组 – 清理将数组拆分为三分之一并显示给用户的方法

qw(aaa bbb ccc ddd eee fff ggg hhh iii jjj kkk lll)

aaa eee iii
bbb fff jjj
ccc ggg kkk
ddd hhh lll

use List::MoreUtils qw( part );
my $num_rows = int(@a/3);
my @aoa = map [ @a[@$_] ],part { $_ % $num_rows } 0..$#a;
print("@$_\n") for @aoa;

要么

use List::MoreUtils qw( part );
my $num_rows = int(@a/3);
my @aoa = part { $_ % $num_rows } 0..$#a;
print("@a[ @$_ ]\n") for @aoa;

要么

@H_392_2@my $num_rows = int(@a/3); for my $row_num (0..$num_rows-1) { print("@a[ map { $row_num + $num_rows*$_ } 0..2 ]\n"); }

以上版本不假设@a％3 == 0.

use List::MoreUtils qw( part );
use POSIX           qw( ceil );
my $num_rows = ceil(@a/3);
my @aoa = map [ @a[@$_] ],part { $_ % $num_rows } 0..$#a;
print("@$_\n") for @aoa;

要么

use List::MoreUtils qw( part );
use POSIX           qw( ceil );
my $num_rows = ceil(@a/3);
my @aoa = part { $_ % $num_rows } 0..$#a;
print("@a[ @$_ ]\n") for @aoa;

要么

use POSIX qw( ceil );
my $num_rows = ceil(@a/3);
for my $row_num (0..$num_rows-1) {
   print("@a[ grep { $_ < @a } map { $row_num + $num_rows*$_ } 0..2 ]\n");
}