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BIM's information model can be used by managers to query, modify and call, synchronously update system information, and better maintain equipment and buildings. The operation and maintenance of buildings usually include monitoring, communication, ventilation, lighting, elevators and other systems. If the above equipment and pipelines fail, they may affect the normal operation of buildings and even cause safety accidents.The policy mode is the packaging of the algorithm, which separates the responsibility of using the algorithm from the algorithm itself and delegates it to different objects. Policy patterns usually wrap a series of algorithms into a series of policy classes. To encapsulate the policy pattern in one sentence is to "encapsulate each algorithm into a different policy class so that they can be interchanged". The following is the structure diagram of the policy mode:我……我都把自己当张家人了，当然要帮张家了。延续第一季的剧情，讲述了立志35岁提前退休的辛凡才刚踏出第一步就被现实打败了，花千金也面临店铺经营困扰无暇顾及感情......越来越多有趣的人，加入了这个热闹的小团体，这群年轻人依旧续写着他们的生活，继续上演着关于爱、温暖、奋斗与成长的故事。海天集团董事长石磊是精明能干的商人，同时也是极富爱心的社会公益人士。在一次度假途中，他邂逅了女董事长沈心瑷，两人一见如故。沈心瑷的未婚夫在结婚前夕死于车祸，沈心瑷想要完成他修建福利院的夙愿。由于商业操作的失误，骏豪集团陷入了空前的财务危机，此时石磊向沈心瑷伸出援助之手，两人在的不断接触中，产生了爱情。然而，就在沈心瑷感觉幸福正靠近自己的时候，却意外发现了石磊还怀有更大的商业目的，她崩溃了，选择了离开。石磊没有想到，他已经离不开沈心瑷。一年后，在他们初次相遇的雪地里，石磊静静地坐在那里，沈心瑷来了，看着憔悴的石磊和美丽的、温馨的福利院，沈心瑷相信了石磊为自己所做的一切。衬着孩子们的笑脸，沈心瑷披上了婚纱。叙述这些事的时候，当然免不了要提及胡钧、汪魁等少年，也都风头劲健，令永平帝心怀大畅。泰剧别样少女