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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.　　在前往金沙谷的途中，夏梦看见了一张刀疤脸，受到惊吓，更莫名其妙被一辆越野车撞翻，险些丧命，接着常在又跌落陷阱里，幸得一个叫郑大林（谭耀文 饰）的年轻人相救。The matter of. The teacher is also looking forward to starting the work earlier.Epic Level: Physical Attack, Magic Attack and Independent Attack, with an average increase of about 5%.Take a village similar to Hengdian as my hometown.这位龙姑娘是此间主人，她问你什么，你就回答什么。Make Joint Efforts to Eliminate Binjiang Cancer