?? fig13_08.pl
字號:
#!/usr/bin/perl
# Figure 13.8: fig13_08.pl
# A simple closure example
use warnings;
use strict;
sub animalInFood
{
my $x = shift();
return sub
{
my $y = shift();
print( "There is a $x in my $y!\n" );
};
}
my $flyInFood = animalInFood( "fly" );
my $frogInFood = animalInFood( "frog" );
&$flyInFood( "soup" );
&$frogInFood( "coffee" );
###########################################################################
# (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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