Hi tamaguchi, try like this,
use strict;
use warnings;
use Tk;
my $top = MainWindow->new();
my $canvas = $top->Canvas(width=>300, height=>245, background=>'blue')
+->pack();
my $origin_x=110;
my $origin_y=70;
my $PI=3.141592635;
my $circle_radius=5;
my $path_radius=0;
for (my $angle=0; $angle<=180; $path_radius+=7, $circle_radius+=3, $an
+gle+=10)
{
my $path_x=$origin_x+$path_radius*cos($angle*$PI/90);
my $path_y=$origin_y-$path_radius*sin($angle*$PI/90);
$canvas->createOval($path_x-$circle_radius,
$path_y-$circle_radius,
$path_x+$circle_radius,
$path_y+$circle_radius,
-fill=>'yellow');
$canvas->update();
sleep(1);
}
MainLoop();
I got this code in perlmonks only.
Regards, Velusamy R. eval"print uc\"\\c$_\""for split'','j)@,/6%@0%2,`e@3!-9v2)/@|6%,53!-9@2~j';
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