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分类: Python/Ruby

2011-10-18 14:56:02

  1. foreach my $person (qw/ fred wilma betty barney dino pebbles /) {
  2.   eval {
  3.     open FILE, "<$person"
  4.       or die "Can't open file '$person': $!";
  5.     my($total, $count);
  6.     while (<FILE>) {
  7.       $total += $_;
  8.       $count++;
  9.     }
  10.     my $average = $total/$count;
  11.     print "Average for file $person was $average\n";
  12.     &do_something($person, $average);
  13.   };
  14.   if ($@) {
  15.     print "An error occurred ($@), continuing\n";
  16.   }
  17. }
When a normally fatal error happens during the execution of an eval block, the block
is done running, but the program doesn’t crash.



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