perl/tk 默认背景颜色怎么设置

黑色阳光_cu

1. #!/bin/env perl
   
2. 
   
3. use strict;
   
4. use warnings;
   
5. use Tk;
   
6. 
   
7. my $mw = new Tk::MainWindow;
   
8. $mw->optionAdd("*background", "red");
   
9. $mw->optionAdd("*Button.background", "yellow");
   
10. 
    
11. my $btn = $mw->Button(-text => "Button 1")->pack();
    
12. my $entry = $mw->Entry(-width => 30)->pack();
    
13. 
    
14. 
    
15. Tk::MainLoop();
    

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