Perl的变量类型及用法
Variable types and their uses | Type | Sigil | Example | Is a Name For | |------------+-------+-----------+----------------------------------------| | Scalar | $ | $cents | An individual value (number or string) | | Array | @ | @large | A list of values, keyed by number | | Hash | % | %interest | A group of values, keyed by string | | Subroutine | & | &how | A callable chunk of Perl code | | Typeglob | * | *struck | Everything named struck | # for example my $phrase = "Howdy, world!\n"; # Create a variable print $phrase; # Print the variable
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