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Is to define a main method calculate in the AbstractCalculator class, calculate () calls spilt (), etc. Plus and Minus inherit the AbstractCalculator class respectively, and implement the call to subclasses through the call to AbstractCalculator, see the following example:
  张应酬繁多, 把丁托付给次明及其妻. 次明夫妇决意帮助缚住张不羁的心, 丁更决定采取逐个击破的策略, 务求要把张的女朋友一一打发.
在一次和日军的战役中,国民党军队败退,但一个掌握着重要情报的部门被日军围困,下落不明。因此国民党军队派一个连回去营救。而新四军的一支游击队在行军途中恰好遇到并营救下该国民党情报部门主任苏白,在与日寇的战斗中,随后赶到的国民党连队与游击队前后夹攻,暂时击退日军分队,充满戏剧性的故事由此展开。两支共产党和国民党的“友军”本来也相互是敌人,但由于国共抗日一致对外而成为“友军”,但彼此的戒备并未消除。两个部队戏剧化的相遇,因为不熟悉差点冲突,在抗击日军的过程中互不服气,直至手挽手联合杀敌成为生死兄弟,最后全军覆没战死沙场。
翁盛芬(刘兆铭 饰)和万永昌(周骢 饰)本是情同手足的表兄弟,却因为利益纠葛而闹得水火不容。最终,翁家长子翁以进(郭晋安 饰)提出了让步,用公司的股份换取了万家老字号面店的铺位,并且收纳了王永昌和他的儿子万家丰(郭晋安 饰)进入管理层,共同打理公司事业。
1984.03-风之谷
该剧是讲述在聚光灯背后操纵这个世界的真实政治玩家们的危险赌局,将描写指向权力顶点的超级辅佐官张泰俊的炙热的生存故事。
不打紧的。
神秘的敌人忽然来袭,打破了笼罩在城市上空的宁静气氛,居民的生活受到了严重的影响。更糟糕的是,军方发现他们目前所拥有的一切武器,都对敌方无效。就在这个节骨眼上,身穿武装服的一色茜出现了,紧接着加入战队的,是温柔可人的二叶葵(村川梨衣 配音)、勇敢坚强的三枝若叶(大坪由佳 配音)、内向敏感的四宫向日葵(内田彩 配音),少女们集结在一起,用她们娇弱的身影给人类带来了和平的希望。
卡兰(布莱恩·奥斯丁·格林饰)带着一枚威力强大的古代十字护身符,带着他非凡的武器专家团队回来了,他要保护洛杉矶免受其最大的威胁——超级恶棍莫特(丹尼·特乔饰)和德拉戈(马努·因蒂莱米饰)。Callan将不得不与他曾经的死敌Gunnar (Vinnie Jones饰)联手,试图拯救这座城市。Tom Sizemore饰演侦探Nitti和Lou Ferrigno, DB Sweeney, Jeremy London和Eric Roberts饰演合同工。
In 1992, the 25th Olympic Games began to become an official event.
7. Use your sincerity to find customers
 澳大利亚SBS的犯罪喜剧《不寻常嫌犯 The Unusual Suspects》已在悉尼开拍,2021年播出。  这部4集迷你剧以悉尼东郊的高档住宅区为背景,讲述了一条价值数百万项链的失窃,以及来自不同行业的女性聚集在一起以确保正义得到伸张。


In real life, China's income tax is divided into enterprise income tax, foreign-invested enterprises or foreign-invested enterprises income tax and personal income tax. For these three types of income tax, each is calculated in a different way. Personal income tax has a personal income tax calculation method, while enterprise income tax has its corresponding calculation method. If we do not adopt the policy mode to realize such a requirement, we will define an income tax class, which has an attribute to identify the type of income tax and a CalculateTax () method to calculate the tax. In this method, we need to judge the tax type and calculate the income tax for different tax types through if-else statements. Such an implementation can indeed solve this scenario, but such a design is not conducive to expansion. If the system needs to add an income tax in the later period, it has to go back and modify the CalculateTax method to add an additional judgment statement, which clearly violates the principle of "open-closed". At this time, we can consider using the strategic mode to solve this problem. Since the tax method is the changing part of this scenario, we can naturally think of abstracting the tax method at this time, which is also the essence of the implementation of the strategic mode.
******************这边,葫芦也对黄观赔笑道:黄少爷,我三弟向来好奇,遇见不明白的事总要问个不休,并非有意唐突令堂大人。

Locate to the project directory of mytest and install the modules that the project depends on. These modules will be installed in the: mytest\ node_module directory, the node_module folder will be newly created, and the modules of the project will be downloaded according to the configuration of package.json.
剧版《内在美》是一部治愈爱情喜剧,徐玄振将饰演每个月换一次脸的顶级明星韩世界,每个月在一定时期她会变成其他人的脸。而李民基则饰演航空公司本部长徐道载,这个看起来各方面都完美的男人有一个缺陷,就是人脸识别障碍,为了不被别人发现,徐道载会努力观察人们细小的习惯,走路姿势,通过自己的努力维持着完美的形象。他与韩世界的相遇后,生活发生了巨大变化。
另一方面,对突然出现的魔导国感到困惑的各国统治者们也各自寻求了对抗对策。