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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:Apostles: Kahn, Herd, Prey, Casillas, Shilok, Dirigi, Antoine, Rotes, Luke, BacarSecond, I always try to find a perfect investment method, not aware of the necessity of gain and loss, so I glance left and right to be swayed by considerations of gain and loss. The first kind of people become paranoid and criticize the market for posing as truth when they are not satisfied. The second kind of people become swing and can never be firm once.女孩四季（关颖）与玛菱（余男）同在一家公司上班、同住一间公寓，一个携带对“肮脏”超级敏感的洁癖基因，另一个则有肥胖基因，必须不停地吃药才能抑制发胖，两人均为无法与他人建立稳定的关系烦恼着。大黄卧在板栗脚前，狗头搁在两只前腿上，迎着暖暖的日光，半眯着狗眼打盹。纪实电视连续剧《红蜘蛛3》以女性犯罪实例为主线，用纪实手法真实再现因未能妥善处理好情感问题而导致剧烈冲突的真实案例，再现了公安机关曲折的侦破过程和罪犯扭曲凶残的犯罪心理。全剧给观众以强烈的视觉冲击和心灵的震撼让人感受到自由的可贵，人生的真谛！恢复高考的第二年，知青周文和周武兄弟俩经过一年刻苦学习双双中榜。在这高兴的时刻，却因家遭横祸，兄弟俩只能有一个去上学。周文在关键时刻选择了逃跑，并说出周武不是母亲亲生的这一事实，伤心的周武也离开了家。周武曾订下一门亲事，女方叫李英姿，李英姿为人敢说敢做，二人经历不少磨难终于在一起，并事事为周家着想。周家回城后，当了干部的周文私欲也开始膨胀，与周武的关系也一度紧张，最后周文走上一条不归路。周文被捕后，周武和李英姿去监狱看他，周文格外感动，哥俩提起往事，周文懊悔不迭。十二届三中全会召开了，李英姿和周武决定回农村大干一番事业，二人手牵手的踏入了崭新而充满希望的乡村生活。