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For example, the pike weapon has strong penetration, and basically pokes the dragon's body in yellow regardless of its weakness.0 takes the form of a delegate variable (parameter list), allowing the event to execute the methodBefore the attack occurs: take corresponding defense measures against the known attack types, such as modifying server parameters, setting proxies, etc.偶尔有上山打柴或打猎的人进来歇歇脚。夏驰出生于一个平凡的家庭，爱好推理，进入大学之后，夏驰被室友孟秦热情地拉入了篮球社，两人成为了好兄弟。在孟秦的帮助下，夏驰对一见钟情的晴知展开了猛烈的追求，之后又因为春絮香对夏驰的喜爱，让晴知误会，使得二人再次分离，晴知离开这座城市，夏驰和春絮香感情不断升温。几年后看似平静的生活被晴知的回归打破，而好友孟秦的转变和突然的离世也使得夏驰对人生有了新的感悟和理解，夏驰不再是那个为了爱情可以牺牲一切的少年，也终于和晴知过上了平淡幸福的生活 。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.