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Disadvantages: There are a little more node objects in the responsibility chain mode. It is possible that most nodes do not play a substantial role in a certain request process. Their role is only to make他们两人挽着手，男俊女靓，一对璧人，羡煞旁人，引得周围人不断侧目。多好玩的兔子，抓住它你舍得杀？胡钧不可思议地望着两人道：你们……你们不知吃了多少兔子了，怎么这会儿充起善心人来了？林聪坚持道：那不一样。Action: Blow a kiss.Each object has its corresponding state, and each state corresponds to some corresponding behaviors. If an object has multiple states, there will be many behaviors. Then the judgment of these states and the behavior completed according to the states will lead to multiple conditional statements, and if a new state is added, the existing code needs to be changed. This kind of design obviously violates the principle of opening and closing, and the state mode is used to solve such problems.在我们六集的每一集中，Baymax只想帮助某人，但很多时候他们不想得到帮助。他着手解决一个他已经确定的身体问题，在这个过程中，他会进入一个更深、更感性的地方，并且在这个角色上几乎可以改变。