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The reason why the logic for creating an object is put into a separate class is that it can be used by multiple clients. And separates the creation and use of objects. However, this design also has many defects. First of all, SimpleFactory is a specific class, so we must program for the implementation, making the system lose its flexibility in this respect. Second, if we add new products, we have to modify the code in SimpleFactory, which violates the opening and closing principle. The above model is also called simple factory. He does not appear in GOF mode, it is more like a programming habit.……被吴琳琳拽来的尹文倩从一开始就笑到了现在，任何一个笑点都没有错过。1. It is obvious that the buttonWasPressed method violates the open-closed principle. Every time the state of light is added or modified, the code in the buttonWasPressed method needs to be changed, which makes buttonWasPressed a very unstable method.夏驰出生于一个平凡的家庭，爱好推理，进入大学之后，夏驰被室友孟秦热情地拉入了篮球社，两人成为了好兄弟。在孟秦的帮助下，夏驰对一见钟情的晴知展开了猛烈的追求，之后又因为春絮香对夏驰的喜爱，让晴知误会，使得二人再次分离，晴知离开这座城市，夏驰和春絮香感情不断升温。几年后看似平静的生活被晴知的回归打破，而好友孟秦的转变和突然的离世也使得夏驰对人生有了新的感悟和理解，夏驰不再是那个为了爱情可以牺牲一切的少年，也终于和晴知过上了平淡幸福的生活 。这是一部独特的家庭故事剧，以嘻哈乐（Hip-Hop）世界为背景。主人公Lucious Lyon（Terrence Howard）是一个迷人的、精明能干的乐坛超级明星，正准备带领自己的帝国娱乐公司上市。他从小在街头长大，养成了争强好胜的性格。为了保护自己的音乐帝国，他永远不会放弃任何一场战斗。但是现在和他争夺王位的是他前妻和三个儿子，他不可能再像以前那样不择手段。此话怎么讲？刘邦眼神一动，转而询问。传说中，太阳系的每一颗星星都有一只守护星龙，它们都生活在星龙圣域里。但太阳系的黑洞无处不在，五百年复活一次的妖兽王，它的出现就像巨大的黑洞一样，笼罩了整个星龙圣域，吞噬阳光，吸取所有星龙的星象力量，一心想要统治整个太阳系，它就是——罗刹•暗无。