perl Dumper用法和意義

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意義:協助瞭解存入對象的的資料結構

Data::Dumper有物件導向和直接使用函數兩種調用方法

直接調用函數方式,例如:

use Data::Dumper;
my $a = "good";my $b = "bad";my @my_array = ("hello", "world", "123", 4.5);my %some_hash = ("foo", 35, "bar", 12.4, 2.5, "hello","wilma", 1.72e30, "betty", "bye\n");print Dumper($a);print Dumper(\@my_array);print Dumper(\%some_hash);print Dumper((\%some_hash, \@my_array));

輸出結果:

perl Dumper用法和意義

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