hello c So if I say hello.c which actually doesn't exist in here hi1 c but hi1.c does, you'll find it alphabetically.

如果没看到,那就是。

哈佛公开课 - 计算机科学课程节选

So those are in fact the patterns of zeroes and ones, the bytes that would have been outputted had I hello c remembered to download the compiler to this computer and run it on that little hello.c file.

这些都是0和1的模式，如果我记得下载编译器到计算机上的话,我们就能运行下这个,然后看看输出的字节。

哈佛公开课 - 计算机科学课程节选

hello c Then it's saying name filename to write.

紧接着又出现，文件名：

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nano Well, anytime you run a program at the command line, like nano, you've almost always been putting one or more words nano hello c GCC hello c after that program's name; nano hello dot C, GCC hello dot C, and any number of MKDIR for make directory, and then peace at one or similar.

好的，任何时候在命令行中运行一个程序，就像，你几乎总是用1个或多个单词,在程序名的后面，许多的建立一个新的子目录，然后恢复平静。

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GCC hello c So you see two similarities between the first version, GCC hello.c, and the second version but obviously I've just added which part for that second line.

你将会在第一个版本,和第二个版本GCC，-o，hello，hello，c之间，看到两点相似之处,很显然我们在第二个版本的第二行添加了一些东西。

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So I'm gonna go ahead and save this file, hello c it's hello.c, dot C hints at the fact that this program I just whipped up is written in a language called C.

所以我打算继续，保存，并命名为，“，c“表明这个程序,是使用C语言写的。

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I am going to run a program called Nano nano hello c and type nano hello.c and I'm gonna type the following very quickly without much explanation because we'll dive into this more next week.

我要运行一个Nano程序,键入,我快速写下下面的内容,不打算做过多的解释,因为下周我们会深入了解这些。

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Nano hello c We did Nano for hello.c or whatever I called it, GCC to actually compile into 0s and 1, and then step three is to actually run it.

首先，第二，GCC，hello，c把它编译成01二进制文件，第三，运行。

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So with the fact that I'm now just back at my prompt is a good thing so now GCC hello c if I type this command GCC hello.c, this is gonna run this program that Apple wrote in this case GCC or someone else wrote called GCC.

也就是说我们现在安全返回,说明一切正常,现在我输入这条命令：,这代表运行hello，c这个程序,是由“Apple“或其他人编写的，名为。

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But once you've written a program, "hello world," in a file called hello.c, you Save and Quit.

不过一旦你们写了一个“hello，world“程序“,并且把它保存为hello，c文件后退出。

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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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- And that's because hello.c is something I just wrote -- it's not something I downloaded or bought and installed via double-clicking or anything like that -- because I wrote it, compiled it in my current directory, I have to be ever-so emphatic to the computer that it's actually right here.

那是因为hello，c是我所写的东西-,而不是从哪里下载或购买,并通过双击安装的程序,-因为那是我写的程序，在我当前目录下编译的，我们不得不对计算机强调,它是在这个地方的。

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So it turns out a really nice shortcut on most systems, oops, is to say if you have a file called hello.c and you wanna turn it into a program called hello, well, make hello just write in the command makeHello and it will do all of that for you automatically and hand you a program called hello.

就是寻找一种能在大多数系统上运行的更快捷的方式，哇！,也就是说，你有一个hello，c的文件,你想把它变成一个名为hello的程序，那么只需要敲入命令,它就会自动为你生成,一个hello程序。

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