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.
[1] Traditional medicine application methods include:
美国飞虎队员本尼达远赴中国帮助抵抗日军侵略。在一次空战中被日机击落身负重伤。日军为得到美军情报，在飞机失事地区展开疯狂搜捕。新四军第五师李师长接到美军救援指示，立即部署营救计划。在当地群众、游击队和新四军五师的联合营救下，艰难而又机智的突破了日军的一道道封锁线，最终将飞虎队员本尼达顺利转交到前来接应的部队手中。在展开营救的行动中，中国人民及新四军舍身忘死保护重伤在身的本尼达。由此主人会延续六十年的真挚友谊。六十年后，这群美国客人和中国主人一起在当年落下飞机的水塘边，照下了一张照片。
此外几乎没什么响动，狼兵杀人当真眼皮不眨。
与此同时，这具陌生躯体背后所隐藏的秘密，则让他渐渐感到不安
Physical Attack +45
吴老二进城务工，投奔在城里卖手抓饼的大哥，不料爱上了性感嫂子阿莲。青年土豪庆庆是阿莲的初恋男友，偶然相遇，激情火花四射，一段五迷三道、遍地奇葩，大打出手的故事就此拉开了帷幕……
贺繁星的公司面临被收购的危机，与元宋的感情也因年龄的差距而受到诸多非议，感情和事业几乎同时出现的危机让贺繁星陷入人生的低潮。此时，成熟稳重的叶鹿鸣闯进了贺繁星的世界，成为了贺繁星的人生导师。而叶鹿鸣的出现让元宋觉得自己的爱情变得岌岌可危，与贺繁星之间误会不断。对贺繁星而言，元宋和叶鹿鸣不仅是一道单纯的爱情选择题，而是职场女性面对传统婚恋观的矛盾困境。随着误解的不断加深，贺繁星与元宋无奈分手，但也已经无法接受爱慕她的叶鹿鸣。设计公司被收购，贺繁星的事业重新步入正轨。而爱情之路，也变得明朗起来。
係香港奇妙電視製作嘅電視劇，由林耀聲、李靖筠、麥子樂、唐貝詩主演，用校園戀愛做主題。
Attack Life Critical Strike Dodge Master Skill
同时也带来相关覆面影响，树大招风，功劳太大难免会招人嫉恨，项梁借着贬低刘邦，未尝没有借此敲打尹旭和英布的意思。
夏天天刚把校霸郭之宇调教成“忠犬”男友，就遭到了母亲何青柠的强烈反对，在何青柠心中，夏天天的公司总裁秦至才是完美女婿，她决心要亲自出手，却没料到，偶然的一天母女二人居然互换了身体！何青柠开始顶着女儿的身体为所欲为，夏天天则用母亲的身体奋起反击，俩人在鸡飞狗跳的互换人生中慢慢理解彼此。与此同时，两段高甜恋爱也正酝酿发酵......
Two days ago, Mr. Zha sent an article on the story of stepping on thunder: I hope we are not the main characters in this story of blood showering forest one by one, which makes many investment friends feel heartache for them after seeing these stories, and others feel the same way because they have also experienced stepping on thunder. Let's understand it together with Yixin Financial Management Editor.
佟奉全出于怜惜与茹二奶奶成婚，不
Source authentication and resource isolation, that is, when the client and the server establish a reply, the source of the request is authenticated as necessary, and the authentication results are formed into a reliable white list or blacklist, thus ensuring the effectiveness of the server in processing services. If there are enough hackers and broilers and the authenticity of forged data packets is high, a better countermeasure effect can only be achieved by improving the processing speed and traffic throughput of the server.
Weightlifting
薄姬到底稚嫩，心神激动之下一句话便露了马脚。
本剧改编自耳雅同名小说《S.C.I.谜案集》，讲述了一场正义与邪恶的生死较量的故事，我们一路光明，是因为有人竭力抵挡黑暗。学术究竟是什么？是花哨的幻术，还是杀人于无形的法术，亦或只是哗众取宠的招数？白羽瞳、展耀领衔S.C.I.为你解开环环相扣的谜案。
