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出生于传统裁缝世家的哈蕾从小梦想成为芭蕾舞者，可缺少天赋的她被周围的人认定是“飞不起来的丑小鸭”。机缘巧合哈蕾成了联涟娱乐的练习生，与刚出道的偶像男团M.Y.同属一家公司。完成没有街舞功底的哈蕾，为了追求自己的舞蹈梦想，不停的拼命练习，被一向倔强自大的男团队长赫连荣光看在眼里，决定帮助这个“丑小鸭”。荣光有着惊人的舞蹈天赋，人人都羡慕他“天生的”才华，却不知其实他过目不忘的舞技是因为大脑中被迫植入的一个芯片。这枚儿时被植入的芯片有个致命BUG，每十年需要重启一次，同时会抹除这十年间的所有记忆。明知自己会忘记，是否还要去爱？Figure 1 is an example of a JOP attack. In this example, the attacker's aim is to execute a system call "int 0x80" to open a new command line window. To do this, an attacker needs to modify the contents of the eax register to "0x0000000b" and the ebx register to the string "/bin/sh" before "int 0x80" is called, and the ecx and edx registers must point to the value "0x00000000". Suppose the value "0x0000000" and the string "/bin/sh" can be found in memory when the program is running. An attacker needs to construct the value "0x0000000b" himself. However, for the value "0x0000000b", when an attacker saves data to the stack through a buffer overflow, the "0x00" byte will trigger the system to terminate the read operation. This example specifically describes how the attacker uses the existing code snippet in the program to modify the value of val pushed into the stack by the attacker step by step from "0xffffff0b" to the value required by the system call "0x0000000b", thus implementing JOP attack. The following are the detailed steps of the process.However, in order to maintain compatibility in MYSQL, for example, SQL statements exported from mysqldump can be directly used by other databases. It puts some unique statements only on MYSQL in, so that these statements will not be executed in other databases, but it will be executed in MYSQL.Abstract factory mode refers to providing an interface to create a series of related or interdependent objects, so that clients can create product objects in multiple product families without specifying the specific type of products, emphasizing the change of "series objects". The main points of its implementation include:讲述约翰·达顿（凯文·科斯特纳饰）是达顿家族的一家之长,达顿家族拥有着美国最大的牧场,与牧场毗邻的有美国首个国家公园黄石,印第安人保留地以及土地开发商买下的地皮。在一次因牲畜误入印第安人保留地所引起的争端中,意外伤亡事件发生,一场涉及多方的争端在蒙大拿州这片美丽的土地上拉开了序幕。随着剧集的进行,他不断受到那些试图控制牧场的势力挑战。否则，悄无声息地撤回来。