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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:2. For reporters with 100,000 manuscripts, the Marketing Department of Interface Financial Association will interview everyone and make small videos, which will be played on large screens in offices in Beijing and Shanghai.斯洛博恩岛第一季……< div class= "two" style= "width: 150px; Height: 150px; Background: yellow; "> twoPublic String getSubject ();潘云又拿了个玉色香炉，焚了一炉不知什么香，轻烟袅袅，看得白果呆了眼。对于死亡这件事，伴随了嘉靖几十年，看过了大风大浪的徐阶十分敏感也深有体会。