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According to the implementation conditions and principles of JIT production mode, its related activities are divided into five levels, and at the same time there are different specific activity items (different enterprises are different) under each level, as shown in Figure 1.Namespace. ? In JavaScript, if a variable is declared outside the top-level function, it becomes globally available directly. As a result, naming conflicts often occur accidentally. Using modular development to encapsulate variables can avoid polluting the global environment.秦末，相县有项梁、项羽(胡军饰)叔侄两人，他们系楚国名将之后，阴蓄反秦大志。同县有一美女虞姬(杨恭如饰)，为秦将所虏，项羽救之，两人相识并产生好感。离相县不远的沛县有一刘邦(肖荣生饰)，三十七、八岁末娶，游手好闲，但结交萧何等一帮豪杰。他为亭长后，娶吕雉(吴倩莲饰)为妻。不久陈胜起义，刘邦、项羽乘时相继起兵反秦。两人初次相逢于襄阳城外，一见如故，相敬相惜。项梁听谋士范增言，立故楚宗室心为楚怀王。刘、项共拥之。后项梁为秦章邯部所杀，项羽报仇心切，率兵北伐章邯。巨鹿一战，项羽大破秦兵。章邯四十多万精粹或死或降。但这时项羽坑杀二十多万投降秦兵，留下残暴恶名。趁项羽攻打秦兵主力，刘邦率先攻入关中，秦王婴投降，刘邦遂取下秦都咸阳。因在前楚怀王曾有先入秦关者封王之约，刘邦和吕雉都希望成为关中王和王妃。范增知道刘邦胸藏大志，劝项羽杀刘邦。项羽表面凶暴，实则忠厚，鸿门宴上不忍加害，刘邦逃过一命。 项羽与虞姬早已两心相许，只因项梁之死而推迟婚期。Factory method pattern refers to defining a factory interface that creates an object. Its subclasses determine the classes to instantiate and postpone the actual creation to the subclasses. It emphasizes the change of "single object". The main points of its implementation include:都暻秀（EXO D.O.）在戏中饰演男主人公金焕东(音译)，是一位准备制作毕业电影的电影本科大学生，故事以他为实现导演梦及与前恋人慧晶（蔡书珍 饰）再次相遇后的故事为主，向青年们传达即使身处逆境，也不要放弃希望，勇往直前的正能量。　　本片根据金庸同名小说改编。14、红梅阁 10集 李慧娘－龚慈恩 裴禹－邱心志 卢昭容－桑妮 朝霞－贾静雯