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FlyWeightFactory is responsible for creating and managing meta-units. When a client requests, the factory needs to check whether there are eligible objects in the current object pool. If so, it returns the existing object. If not, it creates a new object. FlyWeight is a superclass. When it comes to shared pools, It is easy to think of JDBC connection pooling in Java, Considering the characteristics of each connection, It is not difficult for us to sum up: Applies to several objects that are shared, They have some common attributes, Take the database connection pool as an example, url, driverClassName, username, password and dbname, these attributes are the same for each connection, so it is suitable to use the meta-sharing mode to process, build a factory class, take the above similar attributes as internal data and the others as external data, and pass them in as parameters when calling methods, thus saving space and reducing the number of instances.英梨梨和诗羽的大作会变得如何？伦也和惠的关系发生异变？blessing software的新作究竟会走向何方？Passing Zhongshan, the left may be the expressway and the right is the county seat.靳子谦暗中爱慕着游加勒，但游加勒的芳心早已经属于雷建冲（郭政鸿 饰）。雷建冲是父亲最强劲的对手，他为人阴险狡诈，为了谋取利益不择手段。在雷建冲的挑拨之下，游一桥和靳子谦之前产生了误会爆发了矛盾，他们决定靠桌球来一决胜负。黎水不答这个，却哽咽道：大哥，你可知道，我好想你。平静的一天，喜羊羊、沸羊羊在追逐一个神秘之人的过程中遭到了灰太狼以及恐怖的机械龙的攻击。在此之后，他们得到来自龙乐园的5个小家伙：变色龙、钻地龙、朦龙龙、七窍玲龙和轰龙龙的救助。从小龙的口中得知，龙乐园遭到机械龙无情的袭击，另一国度的危机也间接影响到了宁静祥和的青青大草原。与此同时，喜羊羊的父母也在时空旅行中遭遇意外。为了让龙乐园和青青大草原恢复原状，也为了拯救智羊羊和丽羊羊，羊村的小伙伴全副武装前往龙乐园寻找传说中的龙笛。原本打算去丈母娘家避难的灰太狼，也意外卷入了这场新的冒险之中…… 本片为动画片《喜羊羊与灰太狼》第4部剧场版。