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:
一个行为正直严格自律的老村长，精心设计着自己退休后的晚年生活。一生忠诚于信仰的他，却在本性面前轻易地低下了头；一个污点掉落在命运蓝图上，他竭力去擦掉污迹，却剥开了一个黑洞，深陷其中。
三位闺蜜即将迈入40 岁的门槛，她们相互扶持，风雨同舟，共同面对生活、爱和失去。
真的是他吗？是他要杀了哥哥吗？她反复思索这件事，反复想这个人。
曾经大手笔地在楚国将领之间玩平衡，玩制衡，可以说如今的天下形势熊心也起到了推波助澜的作用。
该剧讲述了一群橄榄球员的职业生涯与私人生活。巨石强森在剧中出演一名退役的橄榄球员。夏天看这部剧再合适不过，肌肉、热血、沙滩、美女、名利场无不让人热血沸腾。激情与汗水齐飞，权力与欲望交融，HBO此剧大有看齐《嘻哈帝国》的野心。
巫妖一战。
男主角朝阳是一名快递员，却拥有让常人羡慕的超能力，骑车速度秒杀一切现有交通工具，所以城中所有急件要件都是由他来送递，常年稳居快递哥榜首。这身专业又复古的骑手装扮，看得出服化道做得十分细致用心。
红椒不信道：我什么也不用做，跟傻子似的坐着，你知道画？田遥逗她道：你本来就傻。
他只需要我们忠于大靖就成了。
脸色和他的衣服颜色几乎是完全一样的，尹旭刚刚从言语上侮辱了自己，而此刻他的属下苏岸又这样对待自己，这样一直是天之骄女般存在的徐家大小姐徐彤如何受得了？心中怒气上涌，愤怒到了极点，目光落到一旁的徐宣身上。
The natural water source and fire pool for LPG storage tank 6.0. 8 for fire engines shall be provided with fire engines 6.0. 9. The net width and clearance height of fire lanes shall not be less than 4.0 m.. Obstacles that hinder the operation of fire engines shall not be set up between the fire lane, factory buildings (warehouses) and civil buildings. 6.0. 10 At least two annular fire lanes shall be connected with other lanes. The end-type fire lane shall be provided with a return lane or return yard. The area of the return yard shall not be less than 12.0 m12.0 m fire truck road surface. The fire fighting operation site and the pipelines and underground ditches below shall be able to withstand the pressure of large fire engines. Traffic roads can be used for fire lanes, but the requirements for the passage and parking of fire engines should be met. 6.0. 11 The fire lane should not cross the main railway line horizontally. If it is necessary to cross horizontally, spare lanes shall be set up, and the distance between the two lanes shall not be less than the length of a train. In order to cooperate with the inspection of the fire safety passage of the workshop, the workshop shall be rectified. The overall planning and problem points are as follows. The total area of this transformation is 187.845 m2, and the transformation area and area are as follows: production office: 3.46*11.17m=39.2m2, packing room: 8.9*2.85m=25.36 m2), the area has changed from 39.2 m2 to 49.59 m2, i.e. The original production office area can accommodate 11 people (including filing cabinet and printing area), and now it can accommodate 14 people to work (including filing cabinet and printing area). Packing room: the location remains unchanged, and the overall area has the original
故事讲述两位意大利青年的一生，主角尼古拉及马迪奥两兄弟，最初他们有着共同的梦想，喜好及人生目标。但当他们遇上了遇上精神病少女佐珍之后，两人的人生观完全改变。兄长尼古拉决定做个精神科医生，而弟弟马迪奥则决意放弃学业，做个除暴安良的警察。
因为，他本来就是张无忌。
1. Maximum speed for roads without speed limit signs and markings: 30 kilometers for urban roads and 40 kilometers for roads without road center lines; Urban roads with only one motorway in the same direction are 50 kilometers and roads are 70 kilometers.
一位名叫Achira的外星人来到地球进行研究，看到一名遇到麻烦的女子并决定拯救她。 他的英勇行动让他在地球上搁浅了300年，因为他很晚才返回太空船。在他期待已久的离开前仅剩三个月，他遇到了女演员法拉达，并意识到她是多年前拯救的女人。 Achira会在发现自己对这位着名女演员产生感情后选择回到自己的星球还是留在地球上？
中原诸侯全都背汉向楚，此事又该怎么说呢？英布淡淡地反驳着。
