foreach $rock (qw/ bedrock slate lava /){print “One rock is $rock.\n”;}#打印出 3种 rocks
@people = qw( fred barney betty );@sorted = sort @people;$n = @sorted ;#$n输出结果是barney , betty, fred
$email = “fred@bedrock.edu”;#不输出@的email地址 转为被数组@bedrock替代
chomp (@lines = <STDIN>);#读入所有的行, 不包括换行符
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