my $directory;
my @files;
my $help;
my $man;
my $verbose; 

undef $directory;
undef @files;
undef $help;
undef $man;
undef $verbose;

GetOptions(
           "dir=s" => \$directory,# optional variable with default value (false)
           "files=s" => \@files,# optional variable that allows comma-separated
                                # list of file names as well as multiple 
                    # occurrenceces of this option.
           "help|?" => \$help,# optional variable with default value (false)
           "man" => \$man,# optional variable with default value (false)
           "verbose" => \$verbose   # optional variable with default value (false)
          );

    if (@files) {
    @files = split(/,/,join(',',@files));
    }

处理互斥命令行参数的最佳方法是什么？在我的脚本中,我只希望用户只输入“–dir”或“–files”命令行参数,但不能同时输入两者.反正配置Getopt来执行此操作吗？

谢谢.