fig08_09.pl

来自「PERL语言资料 可以用于PERL程序设计」· PL 代码 · 共 34 行

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#!usr/bin/perl
# Fig 8.9: fig08_09.pl
# Greedy and non-greedy quantifiers.

use strict;
use warnings;

my $string1 = 
   "Hello there. Nothing here. There could be something here.";
my $string2 = $string1;

print "$string1\n";
$string1 =~ s/N.*here\.//;
print "$string1\n";
print "$string2\n";
$string2 =~ s/N.*?here\.//;
print "$string2\n\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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