引用中的->以及Anonymous arrays

创建一个anonymous array

$ref=['ATGC','GATC','ATGCG']; #[]创建的就是匿名数组，$ref为引用，所有引用都是$开头

print "Here is what in the reference\n";

print "$ref\n";

print "@$ref\n";

print "@$ref[1]\n";

print "$ref->[1]\n";

打印结果

Here is what in the reference
ARRAY(0x112c570)
ATGC GATC ATGCG
GATC
GATC