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9-5 Number of login attempts: In the User class written to complete Exercise 9-3, add an attribute named login_attempts. Write a method named increment_login_attempts () that adds 1 to the value of the attribute login_attempts. Write another method called reset_login_attempts (), which resets the value of the attribute login_attempts to 0.伴随着崇高的荣誉感和强烈的自我意识，必须在瞬间作出决定的压力注定使得团队成员时刻处于争执之中。每当灾难发生在他们之中，自责与愧疚都将紧紧的缠绕在他们身旁许久。深处在离婚阴影中的Matthew Casey中尉(Jesse Spencer饰)努力试图像平常一样工作，但却仍不时与傲慢的营救队队员Kelly Severide中尉（Taylor Kinney饰）发生摩擦和冲突——他们为倒下的团队成员而互相指责。但是当灾难召唤他们行动的时候，他们都将异议与其他无关的事情抛向一边投身营救之中。这是一部深入探讨美国最崇高职业的剧集。2. The policy pattern provides an open-closed principle, making the code easier to understand and expand.跟随“行尸走肉”的明星和摩托车爱好者诺曼·雷杜斯，他踏上了探索当地自行车文化的开阔道路，并向全国最优秀、最聪明的收藏家、机械师和工匠致敬。浩瀚的九州大地上，大徵朝珠赋沉重，逼得渔民绞杀亲子，以谋鲛女落泪而得鲛珠，沿海渔村的少女海市因此遭遇，父母亡故，全村被屠戮。生死关头，她求助于途经此地的大徵第一权臣方诸，历经考验，最终被方诸带回天启。海市从此女扮男装，成为方诸的徒弟。此时，大徵内忧外患不断，喜怒不定的年轻皇帝褚仲旭，因为经受皇朝内乱，而对生失去了一切兴趣，表面上以昏君自居，却在方诸苦苦支撑国家和平时，暗中默默观望这一切。海市奉命成为帝旭的护卫，但却因此引起了帝旭对她的兴趣，两人经历诸多生死关头，从互有误会到逐渐理解对方，帝旭察觉海市的女子身份，暗生情愫，但海市对方诸的依赖，其中藏着可望却难以言说的感情，三人之间情感纠葛不断。随着皇朝的叛乱再起，海市勇敢地选择肩负起守护大徵和平的责任，并终于直面对帝旭、方诸两人的感情。The Slowloris attack exploits a vulnerability in the web server (or an unreasonable parameter configuration) and directly causes a denial of service. Slowloris is an attack method proposed by famous Web security expert RSnake in 2009. Its principle is to send HTTP requests to the server at a very low speed. Since the Web Server has a certain upper limit on the number of concurrent connections, if these connections are maliciously occupied and not released, all connections of the Web Server will be occupied by malicious connections, thus new requests cannot be accepted, resulting in denial of service.