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When you need to add a new state to the light object, you only need to add a new state class and slightly change some existing code. Assuming that the light object now has an extra state of super light, add the SuperStrongLightState class first:　　最后，晓红竟给他们一个离奇的答复…在华天电器商城小家电部当主任的廖扬一直梦想着能够拥有一辆车，他终于说服了媛媛先买车后买房，租房结婚对于年轻人来说可能无所谓，但是在两家老人那里却炸开了锅。但是这会儿他却盯着葫芦看了好一会，才沉声道：无需着急。Explain that in the OrderPizza method, we do a lot of things, including calling the CreatePizza method to generate a desired pizza, and then doing a series of operations on the pizza. The key point is that Pizza is defined as an abstract class, which means that in the OrderPizza method we don't care what type this Pizza is at runtime, in other words, this is decoupling. The coupling between PizzaStore and Pizza is uncoupled.《风火轮之五虎战车》（Hot Wheels: Battle Force 5）是一支由6名青少年赛车手组成的精英团队。他们开着五辆外表很酷，速度极快的赛车，而且随时准备投入战斗。这支队伍必须驾驶他们的车辆去打败迄今为止对地球威胁最大的敌人——野蛮掠食者汪达尔人和沙克带领的险恶的机器人军团。香荽并未像白果他们那样想许多，丝毫不觉这饭菜有何不妥，她兴致勃勃地轻启贝齿，将汤包咬开一个口子，小心地吸了一口，品了一下，赞道：果然鲜美。