我正在尝试使用Perl获得所有可能的三联体组合,我如何结合$ x1 $ x2 $ x3以获得AAA AAB AAC ....... DDD?
@myArray = qw/A B C D/;
i=0;
for my $x1 (@myArray) {
for my $x2 (@myArray) {
for my $x3 (@myArray) {
}
}
}
是你追随的吗?
use strict;
use warnings;
use feature 'say';
my $letters = 'ABCD';
my @a = split '', $letters;
for my $x1 (@a) {
for my $x2 (@a) {
for my $x3 (@a) {
my $str = "$x1$x2$x3";
say $str;
}
}
}