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State. Method1 ();Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:玄武门之变后，李世民登上皇位，但隋朝的残余势力和十八反王留下来的军队仍在北漠兴风作浪，危害百姓。罗通、程铁牛、秦怀玉等一批小将已长大成人，罗通夺得帅位，率领唐军出征，扫平了北漠。此时渤辽国又兴兵攻唐，程咬金挂帅，在龙门县招兵，薛仁贵泪别柳金花去当兵，军营中，薛仁贵被人冒功，只当了个火头军，但他没有放弃，凭着一身本领，屡立战功，终于得到程咬金的赏识，被程咬金举荐为先锋大将，薛仁贵率领唐军平定了渤辽国。柳金花在寒窑中苦等丈夫十年，薛仁贵功成之后，不忘糟糠之妻，回龙门与妻儿相会。同时，李世民在魏征、长孙无忌等贤臣的辅佐下，励精图治，开创了贞观盛世。Low-brown: guava, silvery wormwood, silver grass, water caltrop (trapa natans), mango …讲述了Stuart Townsend饰演的特工试图揭开真相找出自己身份的故事。颈部有罗马数字的纹身，杀手十三是一个忘记了过去的前特工。他遭到一个黑暗的反政府机构追杀，试图通过蛛丝马迹找出自己的身份，以及他所携带的秘密。他很快意识到当他自己越接近谜团真相之际，整个事件变得更为复杂和危险。