@array=('ATGC','GATC','ATGCG');
$ref=\@array;
print "Here is what in the reference\n";
print "$ref\n";
print "@$ref\n";
print "@$ref[1]\n";
print "$ref->[1]\n"; #这里箭头相当于@
##########################################
Here is what in the reference
ARRAY(0x2739d38)
ATGC GATC ATGCG
GATC
GATC
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