如何在Perl中将数字转换为多个形式？

Question

你知道一个简单直接的方法/子/模块,它允许我将一个数字(比如1234567.89)转换成易读的形式 - 比如1.23M吗？

现在我可以通过几次比较来做到这一点,但我对我的方法不满意:

if($bytes > 1000000000){ 
   $bytes = ( sprintf( "%0.2f", $bytes/1000000000 )). " Gb/s";                   
}
elsif ($bytes > 1000000){       
   $bytes = ( sprintf( "%0.2f", $bytes/1000000 )). " Mb/s"; 
}
elsif ($bytes > 1000){
   $bytes = ( sprintf( "%0.2f", $bytes/1000 )). " Kb/s"; 
}
else{ 
   $bytes = sprintf( "%0.2f", $bytes ). "b/s";
}                                                                  

谢谢您的帮助!

Answer 1

该号码::字节::人类模块应该能够帮助你.

可以在其概要中找到如何使用它的示例:

  use Number::Bytes::Human qw(format_bytes);

  $size = format_bytes(0); # '0'
  $size = format_bytes(2*1024); # '2.0K'

  $size = format_bytes(1_234_890, bs => 1000); # '1.3M'
  $size = format_bytes(1E9, bs => 1000); # '1.0G'

  # the OO way
  $human = Number::Bytes::Human->new(bs => 1000, si => 1);
  $size = $human->format(1E7); # '10MB'
  $human->set_options(zero => '-');
  $size = $human->format(0); # '-'