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When the playerDirector opens an exposed interface ReceiveMessage, it is responsible for receiving the message sent by the player object. When the player object sends the message, it always sends its own this to the playerDirector as a parameter so that the playerDirector can identify the player object from which the message comes.讲述了瀚海的叛乱平复了，克尔特领主也死了，黑暗圣杯再也不会危害任何人了。大家因此皆大欢喜。就在这时，皇帝下来秘诏，密诏之中，皇帝满怀对舞阳的愧疚之情，皇帝让雷欧和舞阳永驻翰海，重建分裂的13部落联盟。用光明之珠镇守黑暗圣杯的邪恶力量，永保世间太平。她想道，他这辈子都别想丢开手了。翟金棠‧气势如虹问鼎上海黑白两道Therefore, learning design patterns, The first thing to do is to understand which aspects of design patterns are available to developers, Then, the principle, timing and method of each design pattern are studied respectively, that is to say, under what circumstances should a certain design pattern be used? When understanding the timing of a certain design pattern, it is also necessary to understand what consequences will be caused if this design pattern is not used at this time. After understanding the principle and usage of each pattern, more importantly, learning the object-oriented thinking mode, after mastering the object-oriented thinking mode, looking back at the design pattern, you will have a deeper understanding. Finally, learning the design pattern, you must study hard and practice more. "I agree with the last sentence very much."1953年，黑人家庭Emory一家从北卡罗来纳州搬去洛杉矶的一个全白人社区，看似理想安逸的地方却隐藏着现实与超自然的危险。