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The above analysis shows that one of the first three situations will inevitably occur after intercepting down, so intercepting down is no longer considered here. Let's look at the difference between events after intercepting down.You can use Q coins or Tenpay to buy things in the mall. The charm value is generally 1Q coins = 1 point of charm, but it is less than 1Q, for example, 0.9 Q coins. He will also add 1 point of charm to you.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.The meaning of cache agent is to cache the first run time, and when running the same again, it will be taken directly from the cache. The advantage of this is to avoid repeating the operation function once. If the operation is very complicated and consumes the performance, then using cache objects can improve the performance. We can first understand a simple cache column, which is the common addition and multiplication operations on the Internet. The code is as follows:全球突然出现了很多来自宇宙巨大的“入口”，世界一片混乱、陷入危机。这些扭曲现实的入口为何出现，它们的另一端是？什么人？营寨门口的卫兵发现了异常，立即高度重视上前阻拦。改编自法国气象学家克里斯提安穆莱克(Christian Moullec)领航野雁迁移真人实事。 柯斯提安毕生都在研究如何教失去父母的白额雁迁徙。他计画开着轻航机，一路从挪威到法国，指引雁鸟安全的迁徙路线，但计画补助却遭到巴黎博物馆的拒绝。到柯斯提安在郊外农舍度假的儿子托马，从一开始不适应，直到花了许多时间和雁鸟相处后，渐渐也培养了深厚情谊。某天在阴错阳差下，为了保护雁鸟不被迫害，托马擅自驾驶轻航机打算穿越北海带领雁鸟们迁徙。气候逐渐恶化，柯斯提安与母亲宝拉因担心托马的安危而紧追在后，这趟不凡的惊奇之旅最后能否让一家人完美团聚呢？