Perl 使用Frame(放置其他控件的地方)

#!/usr/local/bin/perl
use Tk;
use dbi;
#Global Variables
my $age = 10;
# Main Window
#GUI Building Area
use Encode qw/encode decode/;
	
my $mw = new MainWindow; # Main Window
my $frm_name = $mw -> Frame();
my $lab =  $frm_name -> Label(-text=>"view memory");
my $lab1 = $frm_name -> Label(-text=>"Ip Address",-width=>10);
my $lab2 = $frm_name -> Label(-text=>"Start date:");
my $lab3 = $frm_name -> Label(-text=>"End date:");
my $ent1 = $frm_name -> Entry();  ###输入文本框
my $ent2 = $frm_name -> Entry();  ###输入文本框
my $ent3 = $frm_name -> Entry();  ###输入文本框

my $but = $mw -> Button(-text=>"ok", -command =>&push_button);
my $textarea = $mw -> Frame(); #Creating Another Frame
my $txt = $textarea -> Text(-width=>40, -height=>10);
my $srl_y = $textarea -> Scrollbar(-orient=>'v',-command=>[yview => $txt]);
my $srl_x = $textarea -> Scrollbar(-orient=>'h',-command=>[xview => $txt]);
$txt -> configure(-yscrollcommand=>['set', $srl_y],
-xscrollcommand=>['set',$srl_x]);
$lab -> grid (-row=>0,-column=>0);
$lab1 -> grid(-row=>1,-column=>1);
$lab2 -> grid(-row=>2,-column=>1);
$lab3 -> grid(-row=>3,-column=>1);
$ent1 -> grid(-row=>1,-column=>2);
$ent2 -> grid(-row=>2,-column=>2);
$ent3 -> grid(-row=>3,-column=>2);
$frm_name -> grid(-row=>1,-column=>1,-columnspan=>2);
$but -> grid(-row=>4,-column=>1,-columnspan=>2);
$txt -> grid(-row=>1,-column=>1,-ipadx=>160,-ipady=>100);
$srl_y -> grid(-row=>1,-column=>2,-sticky=>"ns");
$srl_x -> grid(-row=>2,-column=>1,-sticky=>"ew");
$textarea -> grid(-row=>5,-column=>1,-columnspan=>20);
MainLoop