虽然随着计算机产业的发展,Windows 操作系统的应用越来越广泛,DOS 面临着被淘汰的命运,但是因为它运行安全、稳定,有的用户还在使用,所以一般Windows 的各种版本都与其兼容,用户可以在Windows 系统下运行DOS,中文版Windows中的命令提示符进一步提高了与DOS 下操作命令的兼容性,用户可以在命令提示符直接输入中文调用文件。cmd是command的缩写。即命令行。
容器可以在核心cpu本地运行指令,而不需要任何专门的解释机制。
Containers can run instructions native to the core CPU without any special interpretation mechanisms.
在书各处,我正在假定你正在有之后运行指令登录如根使用者。
Throughout the book, I'm assuming that you're running commands after having logged in as the root user.
计算机编程就是开发程序或者列出控制计算机运行指令的行为。
Computer programming is the activity of developing programs, or lists of instructions, that control the operation of a computer.
I'm thinking about a problem, I'm going to show you an example in a second, first thing I'm going to do is say, what is the thing that's going to change every time I run through the same set of code?
我要解决一个问题,我马上会让大家看一个例子,第一件我要做的事情就是,弄明白每次运行同样的指令集时,每次都会改变的东西是什么?
And that does two things: bug one, it helps catch bugs in your code, and secondly it often converts it into a more efficient sequence of instructions before you actually go off and run it. All right?
这有两点好处:,第一是可以帮助你发现程序中的,第二是把你的代码,在运行之前,转换为更有效率的指令的集合,对不对?
It's a little more involved on a PC but it's all free, the software you can download, and Linux in similar operating systems generally come with a compiler or you run a simple command to get it.
在PC机上有点复杂,但是它是免费的,你一般下载的软件,类似Linux的操作系统等等通常都需要,一个编译器,或者你可以运行一些简单的指令来获取。
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