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I. Classification of Design PatternsStrategy mode refers to defining a series of algorithms, encapsulating them one by one, separating the unchanged part from the changed part, which is actually separating the use and implementation of the algorithm. The usage of the algorithm is unchanged, and the calculated bonus is obtained according to a certain algorithm, while the implementation of the algorithm corresponds to different performance rules according to performance.杰克·格林（杰森·斯坦森 Jason Statham 饰）是一个整日游走于各种赌局的职业赌徒，然而却因为在一次大意的赌局中，被赌界黑势力巨头多西·马查（雷·利奥塔 Ray Liotta 饰）下套，最终锒铛入狱。然而七年的牢狱之灾对杰克来说却并不无裨益，当他发现他的两个狱友分别是国际象棋大师和骗术高手时，便开始了学习深造的道路。刑满出狱的杰克已经身怀绝技，雄心勃勃地决定重返江湖，并报当年一箭之仇。Zhang Weiguo, vice-chairman of the Hubei Provincial Committee of the Chinese People's Political Consultative Conference and secretary of Shiyan Municipal Committee, said that Shiyan City's number of tourists has increased by 25% since the second half of last year by participating in "Charming China City". During the Spring Festival in Wudang Mountain, there was a net increase of 50,000 tourists. "Charming China City" has discovered our own glittering golden light and helped our city put on a beautiful new outfit./v healCS1, …When Liu Guangyuan and other four people finished laying new mines and were ready to return, The Vietnamese army launched a new round of attacks. The main force of this attack was still those "living biological weapons" similar in appearance to "dogs". Among the soldiers responsible for continuing to stick to their positions, gunner Wang Zeduan saw very clearly because he was deployed on a higher favorable shooting terrain. In the interview, he recalled: