?? fig13_04.pl
字號(hào):
#!/usr/bin/perl
# Figure 13.4: fig13_04.pl
# References to references
use warnings;
use strict;
my $variable = 5;
my $reference1 = \$variable;
print( "$variable, $reference1, $$reference1\n" );
my $reference2 = \$reference1;
print( "$variable, $reference1, $$reference1, $reference2, ",
"$$reference2, $$$reference2\n" );
my $reference3 = \\\\$variable;
print( "$reference3, $$reference3, $$$reference3,\n",
" $$$$reference3, $$$$$reference3\n" );
###########################################################################
# (C) Copyright 2001 by Deitel & Associates, Inc. and Prentice Hall. #
# All Rights Reserved. #
# #
# DISCLAIMER: The authors and publisher of this book have used their #
# best efforts in preparing the book. These efforts include the #
# development, research, and testing of the theories and programs #
# to determine their effectiveness. The authors and publisher make #
# no warranty of any kind, expressed or implied, with regard to these #
# programs or to the documentation contained in these books. The authors #
# and publisher shall not be liable in any event for incidental or #
# consequential damages in connection with, or arising out of, the #
# furnishing, performance, or use of these programs. #
###########################################################################
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