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天宇集团老总金泰临的儿子金贤从美国回来，一下飞机就在国际刑警杨帆的眼皮底下被刘云钊指使的匪徒劫持，而杨帆正是金泰临的前妻。同时高分子专家冯云翔到公安局报案却又离奇死去，杨帆转而被安排调查他的案子。作为杨帆徒弟的叶勤接手调查绑架案，暗中安排老孙收集局里几个领导的材料……她以眼神制止大苞谷行动。Understanding Factory Method Patterns: All Factory Method Patterns are used to create objects. The factory method pattern encapsulates the object creation process by letting subclasses decide what the created object is. The factory method pattern has the following roles:のぞみ、西へ 南方英二 中嶋朋子一个富裕的墨西哥家庭决定在他们的牧场周围建一堵墙，以防止市民偷取他们的井水。In addition, they apply different stages of design, and the appearance mode is used in the early stage of design, because the system needs to rely on appearance in the early stage, while the adapter is applied after the design is completed. When it is found that the designed classes cannot work together, the adapter mode can be adopted. However, in many cases, the use of adapter mode should be considered at the early stage of design, such as involving a large number of third-party application interfaces. Proxy mode is that after the mode is completed, it wants to be provided to other clients in the form of services for calling. At this time, other clients can use proxy mode to access the module.