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P0M1=0xFF;　　◆ ◆ ◆ ◆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.本剧主要讲述了民国初年，江湖女子钱宝宝为救母亲，意外顶替留德女博士章晗进入军校成为一群热血制服男的女教官，本想治好母亲的病就离开，却卷入到一场三角恋爱中，一边是热情追求的项昊，一边是女博士的未婚夫：财阀之子沈文涛。钱宝宝不仅面临着情感的纠葛，还面临身份随时被揭穿的危险。意外的是留德女博士章晗并没有死，她的归来让钱宝宝面临道德的拷问。一波未平一波又起，日本人的邪恶势力正在悄悄渗透，军校被阴谋与悬疑的气氛笼罩。钱宝宝该如何获得大家的信任？面对国仇家很，昔日宿敌能否解除心中芥蒂？为了更优秀而竞技，为了保家卫国而战斗。制服诱惑的外表下是热血青春的本色。In the course of practice, Teacher Sun Yimin said more than once, "I hope our practice can make more students pay attention to employment and entrepreneurship. "There are priorities in learning and specializing in technical fields". Everyone's value is often reflected in different aspects. We should find our own way and direction instead of blindly following the principle of postgraduate entrance examination. Industry is also the top priority of the country's development. Investment in industry can also achieve a career! " As a retired old teacher, Mr. Sun, who was supposed to live a leisurely life at home, was still able to stay far away from the "Jianghu", worried about his "monarch" and still chose to devote himself to student work. Such a mind is really admirable!