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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.挖掘红色经典，讴歌主流价值……以全新的理念解读老一辈革命者为了新中国的诞生所付出的努力。歌颂了没有共产党就没有新中国。首开开国将军传记之作，从视觉到心灵带给你一次穿透性的震撼……还原一代将领的乱世风云，精雕细刻再现热血男儿理想轨迹……今天与历史超时空对话。雄浑、深邃；秀雅清丽意境幽远，余味尽涌……一部凝重飘逸、庄严而浪漫的辉煌史诗…-Akiha (Founder of Akiha PPT and Founder of Knowledge IP Training Camp)《我女儿是瑞英》为KBS周末剧，由李宝英、李相允、千浩镇、朴海镇主演。讲述的是近在眼前却远在天边的一对父女之间的爱情与和解的故事。不仅仅是喜欢 -- 萧全