摘要:
命令模式可以很轻松的实现撤销(Undo)功能。命令的接受者:命令的接受者Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--1unituReceiveObject;23interface45type6TLight=class(TObject)7public... 阅读全文
posted @ 2009-05-03 10:23 都市牧羊 阅读(491) 评论(0) 推荐(0) 编辑