One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.
33. The Company will improve the adjustment of department responsibilities as soon as possible to show clarity.
尹旭道：劳动元帅跑一趟，不打紧，只是些皮肉伤，流血过多而已。
该剧讲述了明朝孝宗年间，以法规严谨著名的大寺院，却出了个鬼机灵般好酒好赌的杂役小不懂，并凭借种种刁钻古怪的思想帮孝宗度过难关、破案甚至教书育人。
两个家长在离婚好几年后，又开始了约会，旧情重燃，没想到其中一人收到了改变生活的医疗诊断结果。
一次意外，潮牌工作室负责人凌煕误将生活在森林的莫格利带回城市，并因工作室的营销需求不得不留下莫格利。一个森林小子和一个城市女孩的相处生活就此开始，两人经历了来自家庭、事业、社会等各方面的考验，从互看不顺眼到后来渐渐建立起了独一无二的亲密关系。莫格利在凌煕身上学到了现代生活技能与做人道理，而凌煕在莫格利身上学到了极简主义环保理念，以及一些动物的处事哲学。两人小到不用一次性筷子，垃圾分类，大到阻止吃野味，阻止滥伐森林树木。美好的感情在滋生，默契的两人携手面对，不仅共同解决了危机，还完成了互相拯救与成长。
究竟……谁强暴了谁！
终于等到二月初九，汪滶身着王族礼服，与母亲胡氏，船主杨长帆并排坐在东番府门前广场，身后是三十徽王府侍卫，身侧则是科举选拔而来的新晋文书，他们第一个重要工作就是记录描述选贤女子。
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.
18. Os.path.dirname (path)--return file path
Big Sword 4.8
一望无际的农场上空，农作物喷粉机尘土一心想走入竞赛会场。平日里他的好友农药喷洒车查克担任教练和技师职务，尘土则不顾自身条件在农场附近急速飞行，为此没少受修理车多蒂的臭骂，可他还是毅然报名参加了机翼环球赛的预选赛。尘土极其幸运地通过预选，却也意识到自己和专业赛用飞机的差距，因此拜托传说中曾击落50架敌机的退役战机船长担任他的教练。虽然恐高症始终无法克服，不过尘土总算如愿站在大赛的起跑线上。
The resulting string is "November 21, 2016".
而韩信则是直接北上，在燕山附近的渔阳和范阳一带等着左贤王。
白猫哭得泣不成声，扬起泪脸问道：把人折磨成这……这样，还不让治……还……让不让人活了。
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冀东长城脚下的潘家峪，居住着抗倭名将戚继光戚家军的后代。八路军在冀东消灭日寇，战斗中与潘家峪人民结下了生死情谊，潘家峪也因此成为革命根据地、抗日堡垒村。驻冀东丰润的日军顾问佐佐木对潘家峪人民恨之入骨，一心想彻底摧毁根据地，消灭八路军。佐佐木因找不到八路军而恼羞成怒，带领日军对潘家峪村进行了惨绝人寰的大屠杀。日军的暴行，不但没有使潘家峪人民屈服，反而对日寇更加憎恨。幸存下来的20多名青壮年组成了复仇团，舍身抗日，报仇雪恨，佐佐木被消灭了，烈士的鲜血染红了长城。
该剧通过个人视角来探索人类联系的深层意义，每个故事都从不同的角度和时间点出发，阐明即使在我们看似最孤立的时刻、在最截然不同的情况下，我们都是通过人类的经历联系在一起的。
故事讲述在婚姻里受伤的女人选择出轨报复丈夫，以换得丈夫回心转意。当一个受伤的女人找了一个牛郎，他们却以为旧情萌生了爱愫。最终女主该如何选择爱。老公不爱我了，当我找了个鸭子，马上投入真感情了，前夫说这只是爱的报复，到底要选择鸭子还是前夫。
张老太太抱着重孙子张念祖，对郑老太太叹气道：要说他这抓银子的性格，倒比咱们家的玉米还厉害。
