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And for time's sake, I'm not going to bother changing the name all of the time, at least for now.
由于时间的原因，我不会总是,去改变这个文件名字，至少现在不会。
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so I can tell you how Julius Caesar encoded his things.
我可以告诉你尤里乌斯·凯撒给文件编码的方式。
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When I said in Week One that you don't actually have zeros and ones inside this header file; right?
在第一周我说过的，我们在这个头文件中,是没有二进制的，是吗？
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As I said, right now that's just text file.
正想我刚才说的，它现在就是一个文本文件。
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She jumped up and jumped back and started moving papers around and really was giving me this look ?" like "Why don't you just leave?"
她猛地站起来，往后退了一步,赶紧拾掇着桌面上的文件,给了我一个眼神,好像在说“为什么还不滚“
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So, at the very top of the file I'm just copying and pasting what was essentially on the slide a moment ago.
在这个文件的顶端,我只是做了复制和传递。
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It solves a slight bug if we don't use it at all, but more on that in the future when you talk about files and creating files.
它解决了一点缺陷，如果我不用它，但是更多的是在以后当你们讨论,文件和创建文件时。
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It's instead outside of them and, by convention, at the top of the file so that I can access it anywhere, whether or not this is a good thing, remains to be seen.
它在函数的外面，按照惯例，在文件的顶端，所以我可以在任何地方使用它,不管这是不是好事情，拭目以待。
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And "." signifies my current working directory, the folder that I am currently in.
，“表示的是我当前的工作目录，那个我当前所在的文件中。
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I like it at the top of my file.
我喜欢把它放到我文件的顶端。
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This is a keyword to Python that says, when it reads this in the file, it says, I'm creating a definition.
这是Python语言的关键词，当你在文件中读到这个词的时候，它的意思就是我正在创建一个定义。
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It makes sense to me logically that I want to see it first when I open the file; so I scroll on down but only later is increment declared.
这个逻辑上对我是有意义的，打开文件的时候,我想先看到它，所以我向下翻,之后才声明increment函数。
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I'm gonna call my file hello.c. There's a little bit GUI-- of distraction here but this is because this is not a GUI, CLI a graphical user interface, this is a CLI, command-line interface, which just means there are no windows and icons.
我先给我的文件命名为“hello，c“,你们也许会觉得有点烦，因为不是，图形用户界面，这是，命令行界面，这意味着没有窗口，没有图标。
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Re-save my file, and actually now recompile with make.
重新保存我的文件，我用make重编译它。
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This is a little file I created, all right, and I'm going to start with a sequence of these things and walk them along, again I invite you to put comments on that handout so that you can follow what we're going to do. All right?
这是我创建的一个小文件，好，然后我回去以一系列这样的事情,开始然后进行下去，我还是想大家都在手册上做一些注释,这样我们就能对将要做的事情,做一个记录了，对不对？
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So among your printouts are a couple of files one called condition1.c. I'm going to change over to my terminal window.
在你们的打印输出中有几个文件,其中一个叫做condition1，c，我将,改变我的终端窗口。
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stdio c So somewhere there's standard IO dot C, stdio h somewhere they're standard IO dot H, but, for me, right now, the only file I need to know about is the dot H, -- because what Sharp include really does -- it's what's called a preprocessor directive.
所以某个地方有一个，现在对于我来说它们是，我只要知道那个，h文件，因为Sharp包含的-,叫做预处理指令。
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It's kind of a stupid lack of feature that this is the case, but notice that here is main, at the top of my file.
这是有点笨的，缺少特征的，就是这种情况，但是注意这里是main函数，在我的文件的顶端。
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Because I know this program was saved by default into my current folder, my current directory, so dot slash means run the program called a.out that's right here in my current directory not in, like, a out my applications folder or somewhere else.
程序默认保存在,当前目录下的文件夹，/意味着运行这个名为“a，out“的文件,是我当前目录下的文件，而不是应用程序文件夹或其他别的地方的。
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LS And what very often happens if you do an LS in your account, to list your files, there's a whole lot of stuff in here at the moment -- and I don't have it here - but what you'll often see -- I'll just fake this demo -- is a file called core.
经常发生的是，如果你用你的账号做一个，来列出你的文件，此刻这里有一大堆元素,-它不在这里,但你们将经常看到--我将篡改这个演示-,是一个叫做core的文件。
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Why is this much nice? Well, that's a handy piece of code. Because imagine I've got that now, and I can now store that away in some file name, input dot p y, and import into every one of my procedure functions, pardon me, my files of procedures, because it's a standard way of now giving me the input.
为什么这样很好呢？,这是一段很好用的代码,因为想象下如果我有了这段代码,我能把它用某个文件名保存起来,后缀是。py，导入到所有的处理函数中,抱歉，我的处理文件,因为这是一个标准的输入方法。
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So that's why I've included that header file.
这就是我包含那个头文件的原因。
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So I could -- and the hint here is that looks like you probably do want to use CS50's library because I've included the so-called header file for it.
所以我可以--这里的提示看起来好像,你可能的确想使用CS50的函数库,因为我包含了所谓的头文件。
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Make then assumes I'm in a file called make math2.c and goes and finds it.
假设我在一个叫做“make，math2，c“的文件里,然后去找它。
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Let me go ahead and instead open up what I called high3.
让我继续，打开叫high3的文件。
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