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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:Minimum Configuration:俞大猷可以高高兴兴回去领功了，但是某些人躺着也能中枪。茫茫黑夜，无限黑暗，漫长等待，所以太阳出现的那一刹那，朝阳浮现的那一瞬间，才会格外的波澜壮阔，激动人心。"Yes, it's the kind of big rats. They are more difficult to deal with than big wasps. Especially when these two things go together, one is in the sky and the other is underground. We should be too busy to take care of them. Moreover, the kind of big rats have very strong teeth. It's a piece of cake to bite off their arms and legs in three or two, and they move very quickly." Zhang Xiaobo said.大家踮着脚望去，果然街角杀出一辆骡车，骡车旁边两位身高差距极大的年轻人正谈笑风生，不用说，矮个子的白脸少年自然是杨长贵，那高个子却并非每个人都认识。由万合天宜最新出品的网络自制剧《大侠黄飞鸿》公布最新概念海报，画面中黄飞鸿赤裸上身背对镜头美感十足，引发网友热议。