英语翻译All the examples are in hig-endian format,e.g.0F00 0A00 is coded as 0F,00,0A,00 sequence.

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英语翻译All the examples are in hig-endian format,e.g.0F00 0A00 is coded as 0F,00,0A,00 sequence.
英语翻译
All the examples are in hig-endian format,e.g.0F00 0A00 is coded as 0F,00,0A,00 sequence.

英语翻译All the examples are in hig-endian format,e.g.0F00 0A00 is coded as 0F,00,0A,00 sequence.
所有的例子都在HIG-endian格式,例如0F000A00编码为0F,00,0A,00序列.

在UNIX系统中,一个fork系统调用会跟在exec系统调用之后执行作用是开启一个新的进程。 fork()系统调用克隆目前正在运行的进程,而exec()系统调用是再一个进程中调用一个新的进程。
我翻译的不太准确,但是fork()和exec()这两个linux系统调用我还是用过的,fork()是用来产生新的进程的,父进程调用fork()后会产生一个跟父进程一模一样的子进程,这样做是为了节省内...

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在UNIX系统中,一个fork系统调用会跟在exec系统调用之后执行作用是开启一个新的进程。 fork()系统调用克隆目前正在运行的进程,而exec()系统调用是再一个进程中调用一个新的进程。
我翻译的不太准确,但是fork()和exec()这两个linux系统调用我还是用过的,fork()是用来产生新的进程的,父进程调用fork()后会产生一个跟父进程一模一样的子进程,这样做是为了节省内存,当子进程需要有具体的代码执行时才分配内存和资源,这就是UNIX操作系统的写时复制。你应该知道在UNIX中没有像window一样的线程,只有进程,在UNIX的轻量级进程就相当于window中的线程。
exec()系统调用,是用来执行一个新的程序的,如 shell:ls 或者随便的一个什么程序都可以。
exec("ls")(还有什么参数不记得了)就是调用ls这个shell命令。
你应该是初学操作系统吧。建议你不仅要看书,也要多多的进行实践,多写一些系统调用的C语言程序,如果你能力很强,建议你读一读linux随便哪一版本的内核,如果能力非常强建议你可以自己修改一下内核,到达自己的效果或者目的。本人能力有限只看过部分操作系统源码,也只修改过一些代码,希望对你有帮助。

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