3. Provide multi-display support
In the previous example of electric lights, a state mode program was completed. First, the Light class is defined, which is also called Context here. Then in Light's constructor, to create instance objects for each state class, Context will hold references to these state objects in order to delegate the request to the state objects. The user's request, that is, the action of clicking button, is also implemented in Context, with the following code:
《兵器谱》的设定简直帅呆了。
该剧以宏大的历史视野，正面地完整地真实地形象地再现一九四九年到一九五四年期间中国革命进程和在中国发生的翻天覆地的变化。全方位展现了北平和平解放、西柏坡党的七届二中全会、国共和谈、渡江战役、上海金融大战、签署《中苏友好同盟互助条约》、和平解放新疆、解放大西南、中国人民志愿军赴朝鲜战场、和平解放西藏等一系列波澜壮阔的革命历史画面。演绎了国共两党在军事、政治、经济、统战以及秘密战线等各个领域的全面较量；歌颂了人民群众衷心拥护革命、推动历史前进的伟大力量；颂扬了爱国民主人士为中国革命作出的特殊贡献。展示了以毛泽东为首的革命领袖的丰功伟业，特别是毛泽东放眼世界、实现民族大团结的雄才大略以及求贤若渴的平民意识和领袖胸襟。
分享了他對該節目的熱情，他說：「與電影講故事者合作，從關門的背後帶給觀眾親密而
少时，小葱赶来，跟板栗一起细听金二说事情经过。
但许望在河内的势力和声望摆在那里。
泰德寻觅多年的真命天女、万众期待的老妈，终于出现了！
简先生急忙点头答应，迈步就走。
城市进行，全国范围内选取的优胜者逐步晋级，再逐一淘汰。《Super Star K》成就了平民对于歌手梦想的追逐和狂欢。
原来，警方已然发出警告，正在这个神秘的小岛上通缉一对
《梦幻西游》改编自同名网游，以《西游记》为故事背景，但却跳脱出师徒四人西天取经的传统故事，而是创造了人仙魔三界的奇幻时空，塑造了极富个性的众多角色，可谓是一部“另类西游”。此次唐人影视打造的同名作品更是大胆创新，讲述了一群游戏高手因为游戏中的一个bug，而被卷入到了虚拟与现实交叠的危机之中的故事。
If I were to implement a pizza ordering system, I would definitely write the code like this, because this kind of code can be written subconsciously without consuming our brains. However, take a closer look at this code: the purpose of this method is to order pizza. However, the code for ordering pizza also needs knowledge about the production of pizza. This method must know all pizza. Worse still, if the types of pizza are to be expanded or pizza with poor sales volume are to be deleted in the future, then the code for ordering pizza will be modified. It looks very bad and should be revised. Our first step must be to separate the code for producing Pizza from the code for ordering pizza, because you should not let the code for ordering Pizza know the logic for producing pizza, but should hand over the logic for producing Pizza to a special type. In this way, we can cope with future changes-if we want to add or delete pizza, we can directly modify the producer of pizza without affecting the logic of ordering pizza.
2230年出生于瓦肯星的男孩史波克（扎克瑞·昆图 Zachary Quinto 饰），因为母亲阿曼达·格雷森（薇诺娜·赖德 Winona Ryder 饰）是人类，经常遭到同僚的嘲笑和欺负。父亲萨瑞克（本·克劳斯 Ben Cross 饰）是瓦肯星的一名外交官，史波克从小就不断地在严肃的瓦肯逻辑教育和他的人类情感之间挣扎。长大后的史波克遇到了同样怀着远大志向的柯克（克里斯·派恩 Chris Pine 饰），两人虽矛盾不断但通过种种任务考验逐渐开始互相理解。
However, it is difficult to say that seeking Taoist jade is one-off, because Sasuke's six-way model does not seek Taoist jade at all.
北京某集团总经理杨海潮赴西北创业。杨海潮的父亲是老一代建设西北的农垦战士，而杨海潮也在这里度过了自己的成长岁月,留下了刻骨铭心的初恋。而今,多年过去,杨海潮又重新踏上了这片土地。
沈悯芮柔声一笑，瞪了眼杨长帆：他已经走了吧？走了，有急事。
Result or comment
是我害苦你们了……杨长帆默默叹道，这样，今后你们若愿意在我府中做事，我可以按月发例钱，来去自由。
那少年在京城骄纵惯了，如何将这些小民放在眼里，顿时眼中戾气闪现，且不去追小葱和秦淼，竟是对着周围人乱抽起来。
