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In the system, the client often needs to interact with multiple subsystems, which causes the client to change with the change of subsystems. At this time, the appearance mode can be used to decouple the client from each subsystem. Appearance mode refers to providing a consistent facade for a group of interfaces in the subsystem. It provides a high-level interface that makes the subsystem easier to use. For example, the customer specialist of Telecom can let the customer specialist complete the services such as charging telephone charges and modifying packages without interacting with various subsystems by himself. The specific class structure diagram is as follows:民歌传奇电视剧《茉莉花》由陈道明、陶红、李宗翰、贾一平等众多明星联袂主演。该剧以1931年至1938年期间日本帝国主义侵略中国为大背景，讲述了一个发生在水乡小镇的三大家族两代情仇的故事。就像一首极富江南风情的民歌，恬淡而舒适，并以“茶文化”贯穿始终，描绘了一幅如《清明上河图》般丰厚隽永的商海画卷；通过杜撰的形式，追溯了民歌《茉莉花》的由来。板栗扯出玉米脖子上的木雕，对爹娘道：这个木雕确实是玉米的。What is event blistering: an event cannot be generated out of thin air, this is the occurrence of the event, etc. Next, I would like to introduce JQuery to prevent event blistering and the verification of JS event blistering. Interested friends can refer to the following ha“最强”异世界幻想OVA满载登场！