The combination mode is also called part-to-whole mode. The combination mode combines objects into a tree structure, which is used to represent the relationship between the whole and the part. The combination mode enables clients to treat individual objects and combined objects equally. For example, in. NET, simple controls such as WinForm controls, TextBox and Label inherit from the Control class, while composite controls such as GroupBox also inherit from the Control class. The specific structure diagram of the combination mode is shown below.
0 Registers a delegate instance for the event through the constructor of the DoSth delegate
For codes of the same length, theoretically, the further the coding distance between any two categories, the stronger the error correction capability. Therefore, when the code length is small, the theoretical optimal code can be calculated according to this principle. However, it is difficult to effectively determine the optimal code when the code length is slightly larger. In fact, this is an NP-hard problem. However, we usually do not need to obtain theoretical optimal codes, because non-optimal codes can often produce good enough classifiers in practice. On the other hand, it is not that the better the theoretical properties of coding, the better the classification performance, because the machine learning problem involves many factors, such as dismantling multiple classes into two "class subsets", and the difficulty of distinguishing the two class subsets formed by different dismantling methods is often different, that is, the difficulty of the two classification problems caused by them is different. Therefore, one theory has a good quality of error correction, but it leads to a difficult coding for the two-classification problem, which is worse than the other theory, but it leads to a simpler coding for the two-classification problem, and it is hard to say which is better or weaker in the final performance of the model.
传说宿世情缘是轮回转世的凄美见证，前世未了缘，今世有缘便能再续。一块丝布将命运相连的众人牢牢束缚，前尘往事缓缓流转，娓娓细述人世爱痴贪嗔……
林绍涛、周一鸣和贾宽自大学伊始，便是同窗好友，风雨十数载，如今携手一起迈入了四十岁门槛，在这个重要的人生中转站里，他们互相扶持面对来自事业、感情、友情等各方面的考验。
那死瘸子还哄我，说小少爷到前边跟管家孙子玩去了。
风浩意外发现了风家的秘密，难道世上还有另外一个风家？为了追寻真相，以及找到能拯救师傅的芪花，他独自出去冒险闯荡，还有多少危机和机缘在等着他呢？
大太太冷笑一声，示意人端了两把椅子来，和二太太端端正正地坐下，丫头还奉上茶水，跟看戏一样看着下人跟玄武侯的外公和朱雀将军的老爹吵架。
小玉，怎么样？这《笑傲江湖》是不是甩开《天河魔剑录》八条马路？付宇锋说道。
Test Scenario 1: Repeat to Jump Yourself (Set SingleTask Yourself)
会稽的震泽山庄收到消息，已经是十多天之后。
才一会的工夫，就睡得昏天黑地，哪里听见大嫂说啥。
英武帝便道，不如大家亲去校场，看看玄武将军招收的女兵都是些什么样的人。
其次，去的人当慷慨陈词，以国之兴亡激励他们，以戍边将士疾苦感动他们，以前次大胜擒获公主、南雀国赔偿损失鼓舞他们，还怕没大夫肯来？既肯自愿前来。
2. Good compression and wrapping.
许亮几乎忍不住要抽自己一个耳光，刚才差一点就辜负了天启的良苦用心。
D > B enters the synchronized block, and since instance is not null at this time, it immediately leaves the synchronized block and returns the result to the program calling the method. E > At this point, thread B intends to use the Singleton instance, only to find that it has not been initialized, so an error occurs. Therefore, there is still the possibility of errors in the program. In fact, the running process of the program is very complicated. From this, we can see that it is more difficult and challenging to write programs especially in multi-threaded environment. We further optimized the program:
夏令营对渴望得到奖学金的伊丽丝意义重大，但是麦特却只顾用买来的各种偷拍设备为自己的香艳小电影搜集素材，或是与夏令营的明星队员作对。玩世不恭的麦特渐渐体会并理解了周围人群的追求，他与伊丽丝的裂痕也在渐渐弥合，这次夏令营会成为麦特的成长之旅么？
