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Football is called "the world's first sport". Football games were once popular in ancient Greece, Rome and China.倒霉女盘兮玉考进了贵族学校，却身无分文沦落街头。在人生中最窘迫的时刻竟遇上了一位冷峻邪傲的霸道总裁颜雨，而对方更是要求自己与他同居！最令人意外的是，他竟然还是自己正要投奔的表哥！不过这个强势的表哥似乎藏着什么秘密，不止不许自己与别的男生交往，甚至成了学校校董来监视自己，还有若隐若现的九条狐狸尾巴…Return conn;Don’t Say Good Bye -- CNBLUEThere is a need for a skill competition in June, but so far there has been no news. The cashier has been paying great attention to strengthening his business knowledge and counting skills since receiving the notice of the skill competition, but he always does not know when to start the competition, and his original enthusiasm has been eroded.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.