#!/usr/bin/perl -w
use strict;
 
my $log_fh;
my $logname = "my.log";
 
sub primitive {
   my ($fh,$m) = @_;
   print $fh $m;
}
 
sub sophisticated {
   my ($args) = @_;
   print $args->{m};
   print $args->{fh} $args->{m} ;
}
 
open $log_fh,">",$logname;
 
print $log_fh "Today I learned ...\n";
 
primitive($log_fh,"... the old way works ...\n");
 
sophisticated({
   fh=>$log_fh,m=>"... and the new way requires an intervention by SO.",});
close $log_fh;

投诉是：

Scalar found where operator expected at ./lexical.file.handle.pl line 15,near
} $args"
(Missing operator before  $args?)
 
$perl --version
 
This is perl,v5.10.1

它适用于O.K.当我使用传递参数的原始技术时,命名参数哈希技术适用于消息部分,而不是文件句柄部分.我需要新版本的打印吗？