gqinvs 发表于 2018-8-30 12:50:33

Perl 脚本之1 :十进制转换成二进制

#!/usr/bin/perl  
#author: peipei
  
#date:2014_06_06
  
sub binary{
  
    my $n = @_;
  
    return $n == 0 || $n == 1;
  
    my $k =int($n/2);
  
    my $b = $n%2;
  
    my $E = binary($k);
  
    retunr $E . $b;
  
}
  
print "Pls input a number: \n";
  
chomp($line = );
  
$answer = binary($line);
  
print "answer is $answer \n";


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