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It should be noted that: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.看在曾与张子易同朝为官的份上。　　舅舅知道此事后并带梅子来到武工队认人。上级派来的地委书记甄一然来报道的路上受到日军的阻挠，孟司令率部队及时赶来才是甄书记一行安全到达。孟司令首先是夸赞常发的英雄事迹，谈话中甄书记听的出孟司令对常发不是一般的爱戴和欣赏。Having a source of heat;夜幕低垂，万籁俱静，六段穿梭时空的故事，古老而华丽的剧场，带领我们走进妙不可言的梦境里。Reporter Station: Is the award mainly aimed at in-depth investigation articles?