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Of course, the software design pattern is only a guide. In actual software development, it must be selected according to specific requirements:等他辞别黄连回到训练场地，钱明问道：黎老大，先前不是已经回禀过了，怎么队长又叫你去？板栗淡淡地说道：队长问我要地图。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.洞悲洞喜创造闯关，各种各样的关卡，各种各样的玩法，精彩不断哦该剧是一部描绘警察大学里发生的青春成长故事的作品。本剧由sam叔和tik主演，于1999年播出。距离上一次制作sam叔的剧已经过去两年，这次仿佛与一位老朋友久别重逢，搭档是老剧迷心目中的大美女tik两人在剧中联手奉献了精彩的演绎，将内心的隐忍与纠结、克制与放纵表现得淋漓尽致。心如冷水的男子，在重遇失忆的妻子后，是否甘愿在这冰冷的漩涡中燃烧？...