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"Initial Version"Explain the template method mode, which means: in an abstract class, there is a main method, and then define 1... n methods, which can be abstract or actual methods, define a class, inherit the abstract class, override the abstract method, and realize the call to subclasses by calling the abstract class. First look at a diagram:Earlier this year, a blackmail software called "WannaCry" began to attack the Internet, from Chinese universities to British hospitals. In April this year, IDT, a Newark, New Jersey-based telecommunications company, suffered a similar attack, which was discovered by Goran Ben-Oni, the company's global chief operating officer. As Ben Oni said in an interview with the New York Times, he immediately realized that this blackmail software attack is different from other attacks against companies. It not only steals the information in the databases it infiltrates, but also steals the information needed to access these databases. This kind of attack means that hackers can not only obtain this information quietly, but also continuously monitor who accesses this information.　　顾人齐因为原生家庭不健全，活得孤立封闭，严重洁癖，是双娇拥有美满的家庭却遭遇车祸，痛失母亲，从此不修边幅。格格不入的两人成为了同一家清洁公司的上下级，俨然一对欢喜冤家。在工作中了解彼此之后，两个人开始惺惺相惜。是双娇在顾人齐的影响下，逐步克服了失去母亲的伤痛，重新面对自我，感情逐渐升温。有一天是双娇得知，母亲的去世不是意外，元凶竟然可能是顾人齐的外公。顾人齐陷入了愧疚，两人分手。顾人齐配合警方调查后发现，车祸的肇事者是顾家的司机，顾人齐的外公是被司机陷害的。误会解开，双娇和顾人齐重归于好。他们认识到，心灵的干净与积极，才是开启美好生活的钥匙。顾人齐改变了自己，成为了可以拥抱生活的年轻人。两人共同成长，将本来定位高端的清洁服务带入寻常百姓家，成为了千家万户的卫生卫士，重获了人生的梦想与价值。