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云代码 - perl代码库

perl 打印数据结构

2012-10-13 作者: 神马举报

[perl]代码库

#-----------------------------
DB<1> $reference = [ { "foo" => "bar" }, 3, sub { print "hello, world\n" } ];
DB<2> x $reference
0  ARRAY ( 0x1d033c )
 
0  HASH ( 0x7b390 )
 
'foo' = 'bar'>
 
        1  3
 
        2  CODE ( 0x21e3e4 )
 
        - & in ???>
#-----------------------------
        use Data::Dumper;
print Dumper ( $reference );
#-----------------------------
D<1> x \@INC
0  ARRAY ( 0x807d0a8 )
 
'/home/tchrist/perllib'
 
'/usr/lib/perl5/i686-linux/5.00403'
 
'/usr/lib/perl5'
 
'/usr/lib/perl5/site_perl/i686-linux'
 
'/usr/lib/perl5/site_perl'
 
'.'
#-----------------------------
{ package main; require "dumpvar.pl" }
*dumpvar = \&main::dumpvar if __PACKAGE__ ne 'main';
dumpvar ( "main", "INC" );
# show both @INC and %INC
#-----------------------------
@INC = (
 
           '/home/tchrist/perllib/i686-linux'
 
           '/home/tchrist/perllib'
 
           '/usr/lib/perl5/i686-linux/5.00404'
 
           '/usr/lib/perl5'
 
           '/usr/lib/perl5/site_perl/i686-linux'
 
           '/usr/lib/perl5/site_perl'
 
           '.'
 
       )
 
       %INC = (
 
                  'dumpvar.pl' = '/usr/lib/perl5/i686-linux/5.00404/dumpvar.pl'
 
                                 'strict.pm' = '/usr/lib/perl5/i686-linux/5.00404/strict.pm'
 
              )
#-----------------------------
              use Data::Dumper;
print Dumper ( \@INC );
$VAR1 = [
 
            '/home/tchrist/perllib',
 
            '/usr/lib/perl5/i686-linux/5.00403',
 
            '/usr/lib/perl5',
 
            '/usr/lib/perl5/site_perl/i686-linux',
 
            '/usr/lib/perl5/site_perl',
 
            '.'
 
        ];
#-----------------------------


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