如何在Perl中从数组中删除重复项？

Question

173

我在 Perl 中有一个数组：

my @my_array = ("one","two","three","two","three");

如何从数组中删除重复项？

- David

11个回答

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- Sandeep_black · Answer 1

使用唯一哈希键的概念：

my @array  = ("a","b","c","b","a","d","c","a","d");
my %hash   = map { $_ => 1 } @array;
my @unique = keys %hash;
print "@unique","\n";

输出结果：a c b d