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Aug 23rd, 2017
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  1. #!/usr/bin/perl -w
  2.  
  3. sub add{
  4. my($a,$b)=@_;
  5. print $a+$b;
  6. return $a+$b;
  7. }
  8.  
  9. 'add'->(1,2);
  10.  
  11. $addSub='add';
  12. $addSub->(1,2);
  13.  
  14. @arr=('add','sub','multi');
  15. $arr[0]->(1,2);
  16.  
  17. %hash=(
  18. 'add'=>'add',
  19. 'sub'=>sub{ my($a,$b)=@_;
  20. return $a-$b;
  21. }
  22. );
  23. $hash{'add'}->(1,2)
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