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马车慢下来，靠街边停下。There are two important differences:　　浣熊市曾是蓬勃发展的制药巨头——伞公司(Umbrella Corporation)的总部所在地，现在却是一个死气沉沉的中西部小镇。　　该公司的大撤离使这座城市变成了一片荒地，地下蕴藏着巨大的邪恶。　　当邪恶被释放时，镇上的人们将永远改变，一小群幸存者必须共同努力，揭开保护伞背后的真相，并度过夜晚。//Subclasses override methods to implement their own business logic"Charming China City" grasps the relationship between content, subject and expression, combines the focus with program creation, embodies the characteristics of the times, shows the style and features of the times, carries forward the spirit of the times, tells Chinese stories from an economic perspective, and shows the image of Chinese cities to the world. This also shows that CCTV, as a state-level media, has a broader vision and stronger functionality in the layout of propaganda positions.FairyFigure 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.