Chinaunix首页 | 论坛 | 博客
  • 博客访问: 15440
  • 博文数量: 56
  • 博客积分: 0
  • 博客等级: 民兵
  • 技术积分: 465
  • 用 户 组: 普通用户
  • 注册时间: 2018-08-26 01:30
文章分类

全部博文(56)

文章存档

2018年(56)

我的朋友

发布时间:2018-08-29 05:14:00

大家也许在上学的时候,都会做一道题: 打印一棵树。比如:      *     ***    *****   *******  ********* ************************      *      *&nbs.........【阅读全文】

阅读(42) | 评论(0) | 转发(0)

发布时间:2018-08-29 04:17:48

原文地址:http://www.oodesign.com/template-method-pattern.htmlTemplate MethodMotivationIf we take a look at the dictionary definition of a template we can see that a template is a preset format, used as a starting point for a particular application so that the format does not.........【阅读全文】

阅读(43) | 评论(0) | 转发(0)

发布时间:2018-08-29 04:16:09

原文地址:http://www.oodesign.com/proxy-pattern.htmlProxy PatternMotivationSometimes we need the ability to control the access to an object. For example if we need to use only a few methods of some costly objects we'll initialize those objects when we need them enti.........【阅读全文】

阅读(62) | 评论(0) | 转发(0)

发布时间:2018-08-29 04:15:31

原文地址:http://www.oodesign.com/flyweight-pattern.htmlFlyweight PatternMotivationSome programs require a large number of objects that have some shared state among them. Consider for example a game of war, were there is a large number of soldier objects; a soldier object m.........【阅读全文】

阅读(103) | 评论(0) | 转发(0)

发布时间:2018-08-29 04:14:28

原文地址:http://www.oodesign.com/decorator-pattern.htmlDecorator PatternMotivationExtending an object?s functionality can be done statically (at compile time) by using inheritance however it might be necessary to extend an object?s functionality dynamically (at r.........【阅读全文】

阅读(54) | 评论(0) | 转发(0)
给主人留下些什么吧!~~
留言热议
请登录后留言。

登录 注册