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For collaboration files, it is not necessary to check out, as long as you have modification permission, you can modify them.是吗？赵敏嘴角一笑，展开折扇，说道：张教主，绿柳山庄内，你答应帮我做三件事，还算数吗？只要不违背侠义，我会帮你的。Weapon is a weapon; Weapon is a weapon type; ElfWeapon is an Elf weapon; OrcWeapon is a magic weapon.见到项羽急切的表情之后，赶忙欣然道：霸王，好消息，刘邦大军布防彭城之外，等候我军到达之后决战。其实他们内心之中一直有些不大情愿，在进攻开战这件事情上也表现并不积极。范亚父的死讯要是传出去，无疑会影响楚军士兵的士气和信心。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.