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At this time, the cold wind is still blowing outside the window.还有周菡，他也不能辜负她。　　身心俱疲的DJ决定换一个生活环境，他只身来到亚特兰大，进入声望很高的黑人学校--真理大学进修，尽管他对舞蹈的天赋和野心足以使他成为顶级舞者，然而由于DJ觉得在学校里过于拘束，再加上失去弟弟的痛苦，他一直隐忍着自己。正是在这样一个与自己的性格完全背道而驰的全新生活环境里，DJ却发现了一个“踏步舞”的世界。宝剑出鞘。? Disadvantages: Threads are not safe, and asynchrony is easy to occur in multithreading, such as frequent read and write operations on database objects.幼年的慧英有着幸福的童年，父亲郑俊锡是大财团老板的儿子，他因违背父亲的意愿与女工朴缨子结婚并生下慧英，而几乎与家里断绝了来往。同他们生活在一起的还有寡妇宋女士与金女士以及宋女士的女儿秀芝。俊锡十分疼爱慧英和秀芝，经常带他们一起出去玩耍。The template method pattern consists of two parts, The first part is the abstract parent class, The second part is the subclass of concrete implementation. Generally, the abstract parent class encapsulates the algorithm framework of the subclass, including implementing some common methods and encapsulating the execution sequence of all methods in the subclass. The subclass can inherit the parent class and rewrite the methods of the parent class in the subclass, thus realizing its own business logic.