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.
Use appropriate data types, such as StringBuilder, Universal Collection Class
没想到竟然是要去越国。
迷拉星的英雄之子卡卡，身体被邪恶力量入侵，随着少年长大，这份力量也在酝酿着毁天灭地的灾难，却又在冥冥之中指引着守护的道路……
老实刻板的理发师杜常勇丧偶后独自抚养女儿，只想让女儿继承自己的家族企业理发店，但女儿一心想参加节目《后起之秀》当大明星，对老土理发店根本不屑一顾。缺乏理解的父女二人代沟颇深，吵架已成家常便饭。又一次吵架后杜常勇去天台劝女儿回家，却一起被宇宙射线击中，父女醒来发现身体竟已互换！
终于有一天，霸道总裁路晋卸下了精英的高冷面具变身忠犬男友，小魔女褪去了刁蛮任性学会如何去爱，二人在美食中寻觅到简单的幸福。上帝偶尔会瞌睡，丘比特有时也会手抖，但命中注定的那个人终会踏遍千山万水与你相会。终于等到你，余生都是你。
杭州死牢，徐海端坐。
故事时间为西元2001年，人类遭到了地球外起源种（联合国称其为BETA）的侵略，人口数量不断减少，正面临灭亡的危机。为了打破这令人绝望的局面，致力于对BETA进行战斗的人型兵器「战术机」的新型开发是人类眼下的当务之急。日本帝国斯卫军中尉、卫士的黑发美少女篁唯依接到了岩谷中佐下达的特别任务，以日方技术主任身分参加「Prominence计划」，目的地是育空基地的阿拉斯加。而另一边，美利坚合众国陆军少尉、卫士的勇哉・布里吉斯被指派到极北大地阿拉斯加参与开发。之后会发生什么样的事呢，他们的命运又会如何？
何况现在有事出兵和汉国开战的关键时刻，若是再和越国这样一个强大的敌人开战，情况对西楚国很是不利。
本片以闹剧为特色，描绘了一对水火不容的冤家：三只小鸡和一只永远饥饿的狐狸之间的战争，片中的狐狸经常使用狡诈的诡计来对付三只小鸡，而小鸡们则时常利用狐狸诡计中的漏洞逃脱他的迫害并给予报复，每一次失败都会让愤怒的狐狸制造出更多狡猾的计划，从此狐狸与三只小鸡之间上演了一幕幕令人啼笑皆非的追逐游戏。
15岁花样滑冰运动员Kayla从加拿大到英国的生活彻底发生了改变，因为其双胞胎兄长Mac在一所传奇的冰球学院获得了一席之地。她对父母决定把哥哥的野心置于自己之前感到心烦意乱，Kayla如今必须在其作为超级明星的哥哥的阴影下确定自己在滑冰场上的位置。
葫芦对胡钧呵呵笑道：你很好。
不想工作的小孩，焦急结婚的30岁女子？
Since June 1999, an investment of 170 million yuan has taken more than two years to build the West Lake Park, which consists of three famous bridges, three water areas and four islands. The West Lake covers an area of 100 hectares, including 82.28 hectares of water, 1.72 hectares of square roads, 16 hectares of greening and more than 200 kinds of tree species.
这是一个唱歌跳舞，超级快乐，有点悲伤的成长故事！
