本a本b和一本二本区别

The "Learning Culture" section is extremely rich in content and is divided into columns such as Chinese ancient books, Chinese literature, Chinese poetry, Chinese opera, Chinese music, Chinese fine arts, Chinese literature, Chinese architecture, Chinese martial arts, Chinese medicine, Chinese idioms, Chinese couplets, Chinese lantern riddles, Chinese characters, etc. Each column has a lot of content.当朝御史陆星河在驿站被杀，顺天府总捕头程烨和锦衣卫总旗赵有德一起查检案发现场。赵有德的真实身份，乃是卫千岁的亲外甥，也是卫千岁安插在锦衣卫的眼线。程烨以对卫千岁绝对忠心的姿态，获取了赵有德的信任，之后他从陆星河尸体中取得绝密消息：簪青会行动的时间和地点。赵有德将消息送给了卫千岁，卫千岁决定守株待兔，借此机会将簪青会一网打尽。Cannot delete an attribute that cannot be deleted, otherwise an error will be reported本剧是泰国2014年上档的最新电视剧，主要讲述：双胞胎姐姐神秘失踪，Khemika不得不伪装自己来到Shanon拥有的Lerkwireeya公馆寻找姐姐失踪的真相，从未预想过的结果却令她大吃一惊，几近崩溃。一艘华丽的跨大西洋轮船，载满了乘客，他们从欧洲前往南美，寻求更美好的未来。其中，伊娃（伊万娜·巴克罗饰演）和卡罗琳娜（亚历杭德拉·奥涅瓦饰演）是两姐妹，她们差异甚大却形影不离。尼古拉斯·萨拉（乔·科塔加伦那饰演）是一位英俊的长官，因命运捉弄而出现在了错误的地点。船上有一个待解的谜团：一名乘客被谋杀，他的名字没有出现在乘客名单上，也没有人记得他的名字。浪漫爱情、阴谋诡计还有许多谎言…这艘船上每间舱室的人内心深藏着一个故事和一个黑暗的秘密。只有一件事是明了的：凶手就在这艘船上。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.